Laser Cutting vs Plasma Cutting

Fiber laser cutting differs from plasma cutting in its fundamental energy delivery mechanism: laser cutting concentrates photonic energy into a spot as small as 0.1 mm at a power density of 10⁶–10⁹ W/cm², while plasma cutting uses an electrically ionized gas jet operating at 20,000–30,000°C to melt and erode electrically conductive material.

That distinction — photonic precision versus thermal arc — determines every performance parameter you will need to evaluate, from tolerance and surface finish to cutting speed, material range, and total cost of ownership.

Key Takeaways

• Fiber laser achieves ±0.030–0.050 mm tolerance (ISO 9013 Class 1) while plasma reaches no better than ±0.5 mm.
• Fiber laser market: USD 7.7 billion in 2024, growing at 10.8% CAGR — over twice plasma’s 4.2% rate (MarketsandMarkets, 2024).
• At 100,000 parts/year, plasma post-processing adds ~3,300 grinding hours ($82,500–$132,000 in labor) — often exceeding the fiber laser capital premium.

The global fiber laser cutting machine market reached USD 7.7 billion in 2024 and is projected to reach USD 12.8 billion by 2029, growing at a CAGR of 10.8% (MarketsandMarkets, 2024). The plasma cutting machine market stands at USD 1.5–1.8 billion in 2025 — roughly 4–5× smaller by value than the fiber laser segment.

Those market figures tell a clear story about which technology is gaining ground in sheet metal fabrication, but they do not answer the practical question facing every fabrication professional: which process is right for your specific production requirements?

This article works through the complete technical comparison across five areas.

Part One covers technology foundations — what each process is and how it works. Part Two delivers the performance comparison — precision, speed, materials, and cutting thickness. Part Three addresses cost structures — capital investment, operating expenses, and total cost of ownership. Part Four examines industrial applications — which sectors use each process and why. Part Five presents a decision framework, including common misconceptions, to help you choose between the two technologies for your operation.

What Is the Difference Between Laser Cutting and Plasma Cutting and Why Does It Matter?

Fiber laser cutting differs from plasma cutting in its material interaction mechanism: laser cutting vaporizes or melts material through concentrated photonic energy without physical contact, while plasma cutting melts and erodes material through a high-temperature electrically ionized gas stream that requires an electrical circuit through the workpiece.

This single difference produces a cascade of downstream performance distinctions — in precision, edge quality, heat-affected zone, material compatibility, and automation potential — that drive the laser vs plasma cutting decision in metal fabrication today.

Laser cutting delivers production tolerances of ±0.030–0.050 mm (ISO 9013 Class 1) versus plasma’s ±0.5 mm, enables non-contact cutting that avoids work hardening, and supports lights-out automated production that plasma’s consumable replacement cycle prevents.

What Is Fiber Laser Cutting?

Fiber laser cutting is a non-contact thermal cutting process in which a beam of amplified light, generated through a doped glass fiber gain medium and delivered at approximately 1,064 nm wavelength, is focused onto a workpiece to melt, vaporize, or burn through material.

A co-axial assist gas stream — nitrogen, oxygen, or compressed air — ejects the molten material from the cut zone.

The process achieves a focused spot diameter as small as 0.1 mm and power densities of 10⁶–10⁹ W/cm², enabling production tolerances of ±0.030–0.050 mm and surface roughness of 0.2–1.6 µm Ra on thin sheet — performance parameters that plasma cutting cannot approach.

What distinguishes the doped glass fiber medium from CO₂ laser cutting is the wavelength: fiber operates at 1,064 nm versus 10,600 nm for CO₂ — a 10× difference that changes how efficiently each process absorbs into metal.

Fiber lasers process both metallic and non-metallic materials, including stainless steel, aluminum, copper, brass, mild steel, plastics, wood, ceramics, and composites.

What Is Plasma Cutting?

Plasma cutting is a thermal cutting process that uses electrically ionized gas — forced through a narrow nozzle at high velocity — to melt and erode electrically conductive materials.

The process requires a complete electrical circuit between the torch electrode and the conductive workpiece; this circuit requirement is the fundamental restriction that limits plasma cutting to conductive metals only.

Plasma jets operate at temperatures of 20,000–30,000°C and produce a kerf width of 2–4 mm with surface roughness of 12–128 µm Ra — producing edges that typically require grinding or bead blasting before precision assembly, coating, or weld preparation.

Worth noting: plasma jets operate at temperatures of 20,000–30,000°C — far exceeding the melting points of all industrial metals. Standard CNC plasma cutting systems process mild steel, stainless steel, aluminum, copper, and brass.

The plasma cutting machine market reached USD 1.5 billion in 2025, with automated and CNC plasma systems holding 59.24% of market share.

What Are the Different Types of Laser Cutting Used in Sheet Metal Fabrication?

Three main types of laser cutters are used industrially: CO₂ lasers, fiber lasers, and Nd:YAG/Nd:YVO lasers. Each uses a different lasing medium, operates at a different wavelength, and serves a different material range.

Understanding the distinction between these three types matters when comparing “laser cutting” to plasma cutting — because a CO₂ laser and a fiber laser behave very differently on metallic and reflective materials. The three laser types that define the landscape:

• CO₂ laser (10,600 nm wavelength) — Uses an excited CO₂ gas mixture as the gain medium. Best suited for non-metallic materials: thermoplastics, wood, acrylics, and rubber. Less efficient than fiber on metals. Cannot cut reflective metals such as copper and brass without risking beam reflection damage to the optical system. Electro-optical conversion efficiency is approximately 10–15%.
• Fiber laser (~1,064 nm wavelength) — Uses doped glass fiber as the gain medium, delivering a beam 10× shorter in wavelength than CO₂. The shorter wavelength is absorbed more efficiently by metals, enabling higher cutting speeds and better edge quality on steel, stainless steel, aluminum, copper, and brass. Handles reflective metals with anti-back-reflection technology. Electro-optical conversion efficiency is 30–40% (standard) to 50% (IPG ECO series). The dominant industrial choice for metal fabrication.
• Nd:YAG / Nd:YVO laser (~1,064 nm wavelength) — Uses a neodymium-doped crystal as the gain medium. Used for metal cutting and precision engraving. Less common in high-volume production than fiber laser due to lower average power output.

Within fiber lasers, a power classification sub-system applies: low-power fiber laser (below 1 kW — fine detail work), medium-power (1–3 kW — thin sheet production), high-power (3–50 kW — mid-to-thick plate industrial cutting), and extreme-power (50–100 kW+ — thick structural plate, direct plasma competition).

What Is the Difference Between a CO₂ Laser and a Fiber Laser for Metal Cutting?

Fiber laser cutting differs from CO₂ laser cutting in wavelength: 1,064 nm versus 10,600 nm — a 10× difference that determines metal absorption efficiency and suitability for reflective materials.

Metallic reflectivity decreases as wavelength shortens — which is why the fiber laser’s shorter wavelength is absorbed more efficiently by metals and delivers significantly higher wall-plug efficiency on metal: 30–40% electro-optical conversion versus approximately 10–15% for CO₂. On reflective metals — copper, brass, and aluminum — the CO₂ laser faces a fundamental problem: the workpiece surface reflects much of the incident energy back toward the optics, risking damage to the laser resonator. Modern fiber lasers address this with anti-back-reflection technology that protects the source during reflective metal cutting.

CO₂ lasers retain an advantage for non-metallic cutting — thermoplastics, wood, and organic materials — because the 10,600 nm wavelength is well absorbed by non-metals. However, when comparing laser cutting to plasma cutting in metal fabrication contexts, the relevant comparison in almost all cases is fiber laser versus plasma. CO₂ laser versus plasma is a different comparison with different performance parameters, and treating “laser” as a monolith in this comparison produces misleading conclusions — particularly for anyone evaluating copper, brass, or aluminum processing.

How Do Fiber Laser Cutting and Plasma Cutting Compare on Precision and Accuracy?

Fiber laser cutting achieves production tolerances of ±0.030–0.050 mm (ISO 9013 Class 1), while plasma achieves no better than ±0.5 mm (ISO 9013 Class 3–4). That 0.25 mm gap is the positional deviation that causes laser-cut parts to bind in slots dimensioned for plasma-cut edges — a direct fit-up incompatibility in assemblies that mix the two processes.

ISO 9013:2017 (Thermal cutting — Classification of thermal cuts — Geometrical product specification and quality tolerances) defines five quality ranges, where Range 1 represents the highest quality with the lowest dimensional deviation and Range 5 the lowest. The standard applies to laser cuts from 0.5–32 mm thickness and plasma cuts from 0.5–150 mm thickness. Laser cutting consistently achieves Range 1; standard CNC plasma achieves Range 3–4; X-Definition plasma achieves Range 2 on material under 10 mm — the highest precision plasma can deliver.

Five additional precision dimensions separate the two processes:

1. Positional tolerance — Laser: ±0.030–0.050 mm (ISO 9013 Class 1); some high-precision CNC systems achieve ±0.003 mm. Plasma: ±0.5 mm (ISO Class 3–4); critical dimensions requiring ±0.1 mm need post-machining.
2. Repeatability — Laser: ±0.05 mm (ISO Class 1). Plasma: limited by arc instability and nozzle wear.
3. Surface roughness Ra — Laser: 0.2–1.6 µm on thin sheets; under 6.3 µm on plate up to 20 mm. Plasma: 12–128 µm — comparable to a file-like texture.
4. Bevel angle — Plasma produces an inherent 1°–5° bevel due to arc geometry. Laser produces a slight taper but substantially outperforms plasma in edge verticality.
5. Minimum hole capability — Laser: 0.5:1 aspect ratio (5 mm hole in 10 mm plate). Plasma: limited to approximately 1:1 (below this ratio, holes become oval or eroded).

Parameter	Fiber Laser Cutting	Plasma Cutting (Standard)	X-Definition Plasma
Production tolerance	±0.030–0.050 mm	±0.5 mm	±0.1 mm (under 10 mm)
ISO 9013 quality range	Range 1 / Class 1	Range 3–4 / Class 3–4	Range 2 (under 10 mm)
Surface roughness Ra	0.2–1.6 µm (thin); <6.3 µm (20 mm)	12–128 µm	Improved vs standard
Inherent bevel angle	Slight taper only	1°–5°	Reduced vs standard
Min hole aspect ratio	0.5:1	~1:1	Improved vs standard
Post-processing required	Minimal to none	Grinding/bead blasting typically required	Reduced vs standard

What Surface Finish Does Fiber Laser Cutting Produce Compared to Plasma?

The typical surface roughness in fiber laser cutting is 0.2–1.6 µm Ra on thin sheets and under 6.3 µm Ra on plates up to 20 mm. Plasma cutting produces a surface roughness of 12–128 µm Ra — a difference of approximately one order of magnitude on thin material and wider on thick plate.

Laser-cut edges are burr-free and suitable for direct assembly, powder coating, or weld preparation with minimal secondary processing. Plasma edges typically require grinding or bead blasting before any subsequent coating, welding, or precision assembly step. The inherent bevel angle of 1°–5° on plasma-cut edges adds a further preparation requirement for applications demanding square edges — a requirement laser cutting does not generate. This edge quality differential is the primary driver of plasma’s post-processing labor cost disadvantage at production scale.

What Is the Heat-Affected Zone Difference Between Laser Cutting and Plasma Cutting?

Plasma cutting produces a heat-affected zone (HAZ) 5–10× wider than fiber laser cutting. Two mechanisms drive this: the plasma jet operates at 20,000–30,000°C and transfers thermal energy laterally into the surrounding material, and the jet also exerts kinetic force on the workpiece — creating residual tensile stresses that extend the damage zone beyond the purely thermal effect.

Laser cutting produces a HAZ of only 0.05–0.2 mm width. Plasma’s HAZ is proportionally 5–10× wider — a meaningful metallurgical difference with four documented consequences:

1. Warping — The wide thermal gradient in plasma-cut thin sheet causes distortion and dimensional drift, particularly on sheet under 3 mm.
2. Martensitic layer formation — In steels, the rapid thermal cycle in the plasma HAZ can produce a brittle martensitic layer with potential for microcracks. This metallurgical change reduces fatigue life and can compromise structural integrity in load-bearing applications.
3. Chromium depletion in stainless steel — The plasma HAZ thermal cycle drives chromium migration away from the cut zone boundary. The resulting chromium-depleted layer has reduced corrosion resistance — a significant problem for corrosion-critical stainless steel applications.
4. Post-weld heat treatment requirement — Large HAZ zones may require normalizing heat treatment before welding to restore base material properties.

Laser cutting HAZ consequences are minimal by comparison: the narrow 0.05–0.2 mm zone produces no meaningful microstructure alteration, weld-friendly edges, and no work hardening — because the non-contact process exerts zero cutting force on the workpiece.

How Do Laser Cutting and Plasma Cutting Compare on Cutting Speed?

Speed depends entirely on material thickness and laser power level. Laser outperforms plasma on all material under approximately 20 mm for standard systems, and under 40 mm for 40 kW+ systems, while plasma retains a speed advantage only on thick plate cut by lower-power laser systems.

The comparison operates across three thickness tiers:

Thin sheet (under 6 mm): Laser is universally faster. A 12 kW fiber laser cuts 1 mm carbon steel at over 60 m/min with ±0.05 mm precision — plasma causes severe thermal distortion on sheet this thin, making it an impractical choice regardless of speed. A 200W laser cuts 3 mm mild steel at up to 10 m/min.

Medium plate (6–25 mm): Laser maintains a speed advantage in this range for systems above 10 kW. At 12 mm carbon steel, a 10 kW laser cuts at approximately 5 m/min versus a 300A plasma at approximately 3 m/min. The Voortman speed multiplier framework (2024) gives the following reference points on steel up to 25 mm:

Laser Power	Speed vs Standard 300A Plasma
10 kW	1.3× plasma speed
12 kW	2× plasma speed
15 kW	2.4× plasma speed
20 kW	2.8× plasma speed

Thick plate (above 25 mm): The traditional “plasma faster above 16 mm” guideline applies only to conventional laser systems below 20 kW — it is obsolete for high-power systems. A 60 kW fiber laser cuts mild steel at 40 mm approximately 2.5× faster than a 460A plasma cutter; for stainless steel at 40 mm, the speed advantage is approximately 3.2× (IPG Photonics benchmark). High-power fiber lasers (40 kW and above) using mixed nitrogen-oxygen assist gas cut steel faster than plasma across most thicknesses from 10 mm to 40 mm.

Beyond raw cutting velocity, acceleration defines throughput on complex-shaped parts. Fiber laser machines operate at 2G–4G (ACCURL MasterLINE NEXT: 25 m/s² / approximately 3G). Plasma systems operate at 0.5G–1G. This 4–8× acceleration gap determines throughput on jobs with many direction changes, small holes, and tight radii.

Thickness	10 kW Laser	15 kW Laser	300A Plasma	460A Plasma
1 mm mild steel	>60 m/min	>80 m/min	Severe distortion	Unsuitable
3 mm mild steel	~20 m/min	~30 m/min	~10 m/min	~12 m/min
12 mm mild steel	~5 m/min	~7 m/min	~3 m/min	~4 m/min
25 mm mild steel	~2 m/min	~3.5 m/min	~2 m/min	~2.5 m/min
40 mm mild steel	Limited	~2 m/min	~2 m/min	~2 m/min
40 mm stainless	Limited	~1.5 m/min	~0.8 m/min	~1 m/min

Note: 60 kW laser at 40 mm mild steel is 2.5× faster than 460A plasma (IPG Photonics benchmark). Table values for standard power levels are indicative.

Why Is Fiber Laser Faster Than Plasma on Thin Sheet Metal?

Fiber laser cuts thin sheet faster than plasma because extreme power density concentrated in a 0.1 mm spot removes material almost instantaneously through vaporization — plasma’s thermal arc mechanism cannot approach these cutting speeds at thin gauges.

Three mechanisms explain the thin-sheet speed advantage. First, the power density of 10⁶–10⁹ W/cm² at the focus point achieves instantaneous vaporization rather than the melt-and-push mechanism that plasma uses — there is no waiting for the material to reach melting temperature across a wider zone. Second, fiber laser piercing takes milliseconds (the sequence is: positioning, focus, fire); plasma piercing takes several seconds (positioning, height sensing, arc ignition, penetration, dwell) — on a job with 500 pierce points, this difference adds minutes to the plasma cycle and nothing to the laser cycle. Third, the acceleration advantage of 2G–4G versus plasma’s 0.5G–1G allows rapid direction changes without slowing at corners or into small features.

Plasma also generates severe thermal distortion on sheet thinner than approximately 3 mm, making laser the only practical choice for thin-sheet precision work regardless of speed.

Does Machine Acceleration (G-Value) Matter More Than Laser Power for Complex Parts?

For job shops cutting complex shapes — intricate contours, many small holes, tight inside radii — the G-value often matters more than laser power. Here’s the thing: a 6 kW laser operating at 4G (or the ACCURL SMART Cube at 60 m/s² / approximately 6G) will produce greater finished throughput on complex-contour parts than a 20 kW laser operating at 0.8G. Cutting speed on an intricate nest is dominated by acceleration time through direction changes, not by the time spent cutting straight lines.

Selecting acceleration for fiber laser systems depends on part geometry, direction-change frequency, and hole density — not raw wattage alone.

The trade-off is direct: high power enables faster straight-line cutting and greater maximum thickness capacity. High G-value enables faster throughput on jobs with many features per part. If you are cutting brackets, electrical panels, and precision components, acceleration is often the more commercially important specification. Cutting 25 mm steel flanges in straight segments? Power is more relevant there.

The ACCURL MasterLINE NEXT at 25 m/s² (approximately 3G) and the ACCURL SMART Cube at 60 m/s² (approximately 6G) bracket the performance range for most sheet metal applications. Plasma systems at 0.5G–1G cannot compete on direction-change-intensive production regardless of torch power.

When comparing laser to plasma for complex-shape fabrication, the acceleration gap — 4–12× in favour of laser — is the differentiator that never appears in simple speed tables but directly determines job shop throughput.

What Materials Can Fiber Laser Cutting and Plasma Cutting Process?

The typical material range for fiber laser cutting is mild steel, stainless steel, aluminum, copper, brass, titanium, plastics, wood, ceramics, composites, and fabrics. Plasma cutting is restricted to electrically conductive metals only — the process cannot cut any material that does not complete the electrical circuit between the torch electrode and the workpiece.

Plasma’s material restriction is fundamental, not technological — it derives from the requirement to ionize the workpiece electrically. No technology upgrade to plasma can address this restriction. Where the processes diverge, across 6 material categories:

• Mild steel — Both processes cut it effectively. Fiber laser is faster below approximately 20 mm for standard systems. Plasma retains a speed advantage above 25 mm for systems below 20 kW. At 40 mm, a 60 kW laser outperforms a 460A plasma at 2.5× speed.
• Stainless steel — Both processes cut it. However, plasma HAZ drives chromium migration in the cut zone, reducing corrosion resistance — critical for food-grade, pharmaceutical, or marine applications. Laser produces no chromium depletion and cuts stainless steel 3.2× faster than a 460A plasma at 40 mm (60 kW benchmark, IPG Photonics).
• Aluminum — Plasma cutting at higher thicknesses produces severe dross due to aluminum’s high thermal conductivity. Fiber laser produces significantly cleaner aluminum cuts using anti-back-reflection technology and high-pressure nitrogen assist gas.
• Copper and brass (reflective metals) — CO₂ laser cannot cut these without beam reflection damage. Fiber laser handles both with anti-back-reflection technology. Plasma cuts both freely without restriction — no anti-reflection system required.
• Non-metals (plastics, wood, ceramics, composites, fabrics) — Fiber laser cuts acrylic, thermoplastics, rubber, wood, ceramic tile, and woven composites. Plasma cannot cut any non-metal.
• Oxidized, painted, or variable-condition metal — Plasma handles these surfaces without preprocessing. Fiber laser requires clean, rust-free, paint-free surfaces for the stated cutting parameters to apply.

Safety note: PVC must not be cut by either process. Thermal cutting of PVC produces toxic chlorine fumes that represent a serious occupational health hazard.

How Does Cutting Thickness Capacity Compare Between Fiber Laser and Plasma?

Fiber laser cutting machines handle material from under 1 mm to 100 mm (at 40 kW) and up to 60 kW+ in extreme-power configurations; standard CNC plasma cutting handles up to 38–50 mm, and high-power industrial plasma handles 80–150 mm depending on configuration.

Three thickness tiers define the competitive landscape:

Tier 1 — Thin sheet (under 6 mm): Fiber laser absolute domain. Laser delivers unmatched speed, precision, and edge quality at this thickness range. Plasma causes severe thermal distortion and cannot compete on either quality or production rate.

Tier 2 — Battleground zone (6–25 mm): Traditionally plasma territory, now rapidly encroached by high-power fiber lasers. The cost-efficiency inflection point is approximately 20 mm — at this thickness, a 12–15 kW fiber laser processes faster than a 300A plasma while maintaining ISO Class 1 tolerance. The traditional 16 mm crossover rule is obsolete for systems above 20 kW. For reference, conventional fiber laser cutting systems achieve practical maximum cutting thickness of approximately 25.4 mm for mild steel, 19 mm for stainless steel, and 12.7 mm for aluminium (Xometry, 2024) — confirming the Tier 2 encroachment while also defining the ceiling for standard-power systems below 10 kW.

Tier 3 — Thick plate (above 25 mm): Standard plasma dominates on cost per cut for systems below 20 kW. However, high-power fiber lasers (40 kW+) now compete directly. The ACCURL MasterLINE NEXT at 40 kW cuts mild steel to 50 mm (extended: 60 mm). The ACCURL SMART Giant at 40 kW reaches 100 mm mild steel. The ACCURL X-Series at 60 kW directly challenges plasma’s thick-plate stronghold — at 40 mm, a 60 kW fiber laser cuts 2.5× faster than a 460A plasma (IPG Photonics benchmark).

Power-tier capacity summary for fiber laser: standard systems (up to 6 kW) cut mild steel to 25 mm; high-power systems (15–20 kW) reach 40–60 mm; extreme-power systems (30–60 kW) cut up to 80–100 mm mild steel.

ACCURL Fiber Laser Series vs Plasma: Capability Overview

Series	Power Range	Max Mild Steel	Max Stainless Steel	Max Aluminium	Bed Size Range	Positioning Accuracy	Best Application
Smart (1–3 kW)	1 / 1.5 / 2 / 3 kW	10–25 mm	5–10 mm	3–8 mm	3015–6020	±0.01 mm	Job shops, thin sheet, light fabrication
SMART Cube (1–6 kW)	1–6 kW	10–25 mm*	5–20 mm	3–15 mm	2010, 2512, 3015	±0.05 mm	Compact production, complex shapes (6G accel.)
SmartLINE (2–6 kW)	2 / 3 / 4 kW	20–30 mm	8–12 mm	6–10 mm	3015–6025	±0.05 mm	Versatile daily production, thin-to-medium plate
MasterLINE NEXT (3–40 kW)	3–40 kW	16–50 mm (60 mm ext.)	8–50 mm (70 mm ext.)	8–50 mm (80 mm ext.)	3015–12025	±0.03 mm	Mass production, 24/7 operation, 6–40 mm battleground zone
SMART Giant (12–40 kW)	12–40 kW	40–100 mm	30–80 mm	30–70 mm	12030–25040 (up to 40 m)	±0.05 mm	Structural steel, large format, shipbuilding
X-Series / SMART Giant X (up to 60 kW)	Up to 60 kW	Up to 100+ mm	Up to 80+ mm	Up to 70+ mm	2000×1000 to 42000×3000 mm	±0.03 mm (consistent with MasterLINE)	2D+3D+bevel, plasma-competitive thick plate
Standard CNC Plasma (300A)	—	38–50 mm	25–38 mm	25–38 mm	Variable	±0.5 mm	Structural weld prep, thick plate (>25 mm)
High-definition Plasma (max)	—	Up to 100–150 mm	Up to 80 mm	Up to 80 mm	Variable	±0.1 mm (under 10 mm)	Heavy fabrication, large-format thick plate

*SMART Cube at 6 kW: carbon steel 25 mm; note high-pressure nitrogen strategy at 6 kW may reduce maximum carbon steel thickness vs 4 kW.

ACCURL MasterLINE NEXT: Verified Cutting Capacity by Material and Power Level

The following table is sourced from ACCURL MasterLINE PDF Brochure V6.6 — the most authoritative capacity reference for the MasterLINE NEXT series. Values in parentheses represent extended capacity achievable with optimised cutting parameters. Clean, rust-free, paint-free material surfaces are required for stated values.

Material	3 kW (YLR-3000)	4 kW (YLR-4000)	6 kW (YLR-6000)	10 kW (YLS-10000)	12 kW (YLS-12000)	15 kW (YLS-15000)	20 kW (YLS-20000)
Mild Steel S235JR	16 (20) mm	20 (22) mm	25 mm	30 mm	35 (40) mm	40 (50) mm	50 (60) mm
Stainless Steel 1.4301	8 (10) mm	10 (12) mm	15 (20) mm	25 (30) mm	30 (40) mm	35 (50) mm	50 (70) mm
Aluminium AlMg3	8 (10) mm	12 (15) mm	20 (25) mm	25 (30) mm	30 (40) mm	40 (60) mm	50 (80) mm
Copper	4 mm	6 mm	8 mm	12 mm	15 mm	20 mm	30 mm
Brass	6 mm	10 mm	10 mm	15 mm	20 mm	20 mm	35 mm

Source: ACCURL MasterLINE NEXT Brochure V6.6. Confirmed by IEM UK (UK dealer) for 15 kW configuration. MasterLINE NEXT is also available at 30 kW and 40 kW — cutting mild steel to 80 mm and 100 mm respectively at those power levels.

How Do the Costs of Fiber Laser Cutting and Plasma Cutting Compare?

Fiber laser cutting machines cost between $50,000 (entry-level) and $300,000+ (30 kW automated systems); plasma CNC cutters cost between $15,000 (entry-level) and $100,000 (high-precision), depending on power level and configuration.

That capital cost gap — plasma is typically 2–5× cheaper to purchase — is the most cited reason fabricators choose plasma. Capital cost is not the total picture, though. Seven distinct cost factors determine which process is more economical for your operation:

• Capital cost — Plasma CNC entry-level: $15,000–$20,000; high-precision plasma: $50,000–$100,000. Fiber laser entry-level: from $50,000; 12 kW systems: $80,000–$150,000; 30 kW+ automated systems exceed $300,000. UK reference: ACCURL MasterLINE 3015 15kW is priced at £199,000–£221,400 + VAT (IEM UK). Plasma capital cost is typically 2–5× less than a comparable fiber laser. However, installing a 30 kW fiber laser requires 100+ kVA electrical service capacity, and laser-grade filtration systems can cost more than entry-level plasma machines — both are hidden capital costs that narrow the gap.
• Operating cost per machine-hour — Laser: approximately $20/hour. Plasma: approximately $15/hour. The per-hour difference is modest; the per-meter-of-output difference is larger, because the laser produces approximately 2× more output per hour at medium thicknesses.
• Assist gas cost — Plasma compressed air or oxygen: $5–$10/hour. Laser nitrogen for a 12 kW system at full speed: $30–$50/hour (consuming 40–60 m³/hour of nitrogen). This is the single largest per-hour cost differential in favour of plasma.
• Annual consumable cost — Plasma nozzles, electrodes, swirl rings, and shield caps: approximately €10,000–€15,000/year. Laser nozzle and protective lens: approximately €2,000/year — a 5–7.5× difference (Voortman Steel Machinery, 2025). Plasma nozzles and electrodes last 1–3 hours under heavy production use; laser consumables last weeks to months.
• Annual maintenance cost — Plasma: approximately €3,800/year. Fiber laser: approximately €2,650/year (Voortman, 2025). Laser maintenance favours laser in frequency; plasma maintenance can be performed in-house without certified engineers, but laser cutting heads can cost tens of thousands of dollars per unit — an important incident cost (cited by Hypertherm). 
• Post-processing labor (the hidden cost) — 100,000 parts per year generates approximately 3,300 additional labor hours for plasma grinding and edge finishing. At a labor rate of $25–$40/hour, this totals $82,500–$132,000 in hidden finishing cost per 100,000 parts — equivalent to, or exceeding, the capital cost premium of a fiber laser system. This cost does not appear in any plasma equipment specification sheet.
• Material yield (kerf and common-line cutting) — Laser kerf is 0.1–0.3 mm; plasma kerf is 2–4 mm. Common-line cutting at 1 mm part spacing is practical with laser but not feasible with plasma. On dense nesting layouts for expensive materials, material savings from better laser nesting can pay for approximately half the laser machine cost within one year.

Energy efficiency note: The IPG ECO laser series (20 kW, 30 kW) achieves 50% energy efficiency versus 25–35% for conventional fiber lasers. Operating a 30 kW IPG ECO laser saves approximately $18,590/year in energy costs versus a conventional system (at $0.16/kWh, 75% duty cycle, 16 hours/day). ACCURL MasterLINE NEXT is available with IPG YLS-ECO laser sources at 20 kW and 30 kW.

Cost Category	Fiber Laser	Plasma CNC	Advantage
Entry capital cost	$50,000+	$15,000–$20,000	Plasma (2–5× cheaper)
Industrial capital (12 kW)	$80,000–$150,000	$50,000–$100,000 (HD)	Plasma
Operating cost/hour	~$20/hour	~$15/hour	Plasma
Assist gas cost/hour	$30–$50/hour (N₂)	$5–$10/hour	Plasma
Annual consumables	~€2,000/year	€10,000–€15,000/year	Laser (5–7.5×)
Annual maintenance	~€2,650/year	~€3,800/year	Laser
Post-processing labor (100K parts)	Minimal	$82,500–$132,000/year	Laser
Material yield (kerf)	0.1–0.3 mm	2–4 mm	Laser
Per-finished-part cost (at scale)	Lower	Higher (labor loaded)	Laser

The fundamental conclusion: Plasma wins on equipment cost and assist gas. Laser wins when total cost is calculated per finished part, including post-processing labor. The decision depends on whether you are measuring cost per machine-hour or cost per finished deliverable part.

What Is the Total Cost of Ownership (TCO) for Fiber Laser vs Plasma Cutting Over 5 Years?

The total cost of ownership for fiber laser cutting over 5 years is typically lower than plasma when output volume, labor, consumables, and amortization are fully loaded — with a payback period of approximately 20 months on the capital premium at high production volumes.

The IPG Photonics benchmark makes the comparison concrete: a 40 kW fiber laser cutting 20 mm mild steel at 8 m/min produces approximately 38,000 m/month of cut output. A 300A plasma cutter at the same thickness produces approximately 19,000 m/month — half the output. Both systems cost approximately $20,000/month to operate (amortization, labor, overhead, maintenance). To meet a 38,000 m/month production requirement, you need one laser system at $20,000/month or two plasma cutters at $40,000/month.

The capital cost premium of the laser system (approximately $400,000 assumed) pays back in approximately 20 months through the $20,000/month operating cost saving. After 20 months, the laser system costs $20,000/month less to operate than the equivalent plasma capacity. Over five years (60 months), the total operating cost saving beyond the payback period is approximately $800,000 — substantially exceeding the capital cost premium.

The fiber laser generator lifespan of up to 100,000 hours also contributes to low long-term TCO. At 16 hours/day, 250 days/year operation, 100,000 hours represents over 25 years of generator life — the laser source is unlikely to require replacement within any standard capital planning period.

TCO Factor	Fiber Laser (40 kW)	2× Plasma (300A)	Notes
Monthly output (20 mm mild steel)	38,000 m	38,000 m (2 machines)	Both meet same requirement
Monthly operating cost	$20,000	$40,000	IPG Photonics benchmark
Capital cost premium	~$400,000 extra	—	Laser costs more upfront
Payback period	~20 months	—	Via $20K/month saving
Generator lifespan	Up to 100,000 hours	Consumables: 1–3 hours	Laser far lower replacement frequency
Post-processing (100K parts/year)	Minimal	$82,500–$132,000/year	Laser eliminates grinding labor

What Does Annual Maintenance Cost for a Fiber Laser vs a Plasma Cutting System?

Annual maintenance for a plasma cutting system costs approximately €3,800; a comparable fiber laser system costs approximately €2,650 (Voortman Steel Machinery, 2025).

The maintenance cost difference is relatively small in absolute terms. The more significant distinction is consumable replacement frequency — plasma consumables (nozzles, electrodes, swirl rings, shield caps) last 1–3 hours under heavy production use and must be replaced in-house during production. At €10,000–€15,000/year, consumable cost dwarfs the annual maintenance differential by a factor of 5–7.5×. Laser consumables (protective lens, ceramic rings) last weeks to months. Laser cutting head maintenance requires certified engineers, however — the laser head unit itself can cost tens of thousands of dollars if damaged, which Hypertherm cites as the primary reason laser maintenance is more expensive per incident than plasma, even though incidents occur far less frequently.

Four maintenance factors distinguish the two processes:

• Consumable life — Plasma: nozzles and electrodes last 1–3 hours heavy use, requiring regular in-shift replacement. Laser: protective lens and ceramic rings last weeks to months.
• In-house serviceability — Plasma: consumable replacement requires brief training only. Laser: cutting head maintenance requires certified engineers.
• Cutting head cost — Plasma: torch consumables are low-cost commodity items. Laser: cutting head units (Precitec ProCutter 2.0, for example) cost tens of thousands of dollars.
• Generator lifespan — Fiber laser generator: up to 100,000 hours — effectively outlasting most other capital equipment on the production floor.

What Are the Advantages of Fiber Laser Cutting Over Plasma?

Fiber laser cutting has 12 key advantages over plasma cutting. Its primary advantage is precision and edge quality (±0.030–0.050 mm, burr-free Ra 0.2–1.6 µm); its main limitation compared to plasma is capital cost.

Ranked by practical prominence:

• Achieves tight production tolerances — ±0.030–0.050 mm (ISO 9013 Class 1) versus plasma’s ±0.5 mm. Parts cut directly to assembly-ready dimensions without post-machining.
• Produces burr-free, weld-ready edges — Ra 0.2–1.6 µm on thin sheet; under 6.3 µm on 20 mm plate. Eliminates grinding and bead blasting labor — the hidden cost that erodes plasma’s capital cost advantage.
• Generates a narrower kerf — 0.1–0.3 mm versus plasma’s 2–4 mm. Enables common-line cutting at 1 mm part spacing. On expensive material, nesting savings can pay for approximately half the laser machine cost within one year.
• Delivers a significantly smaller HAZ — 0.05–0.2 mm versus plasma’s 5–10× wider zone. No martensitic layer formation, no warping on thin sheet, no chromium depletion in stainless steel.
• Cuts at high speed on thin-to-medium material — A 12 kW fiber laser exceeds 60 m/min on 1 mm carbon steel. Speed multipliers at 25 mm: 10 kW = 1.3×, 12 kW = 2×, 15 kW = 2.4×, 20 kW = 2.8× plasma speed.
• Processes a wide material range including non-metals — Cuts plastics, wood, ceramics, composites, and fabrics — materials plasma cannot approach.
• Enables lights-out manufacturing — Automated tower loading allows 8+ continuous hours without operator intervention. Plasma nozzle replacement every 1–3 hours prevents unattended operation.
• Avoids work hardening — The non-contact, non-shear process preserves base material properties. Critical for motor lamination steel in EV stators, where work hardening increases core losses.
• Integrates natively with Industry 4.0 — CAD/CAM nesting software optimization, MES connectivity, and automated material towers create a fully digital production workflow.
• Handles reflective metals — Anti-back-reflection technology enables copper, brass, and aluminum cutting without risk of beam reflection damage — unlike CO₂ laser systems.
• Eliminates stamping tooling costs for automotive runs — Fiber laser blanking replaces stamping presses for production runs under 50,000 units/year, where tooling cost and lead time make stamping uneconomical.
• Lower annual consumable cost — Approximately €2,000/year versus €10,000–€15,000/year for plasma — a 5–7.5× difference on an ongoing annual basis.

What Are the Advantages of Plasma Cutting Over Fiber Laser?

Plasma cutting has 9 key advantages over fiber laser cutting. Its primary advantage is capital cost (2–5× lower purchase price); its main limitation compared to laser is precision and post-processing requirement.

Ranked by practical prominence:

• Costs 2–5× less to purchase — Entry-level CNC plasma: $15,000–$20,000. High-precision plasma: $50,000–$100,000. Fiber laser entry-level starts at $50,000. For operations where capital is constrained and thick-plate cutting requirements dominate, plasma provides access to productive metal cutting at much lower upfront investment.
• Cuts thick material at lower power levels — Standard CNC plasma handles 38–50 mm mild steel. Specialist high-power plasma cuts 100–150 mm. For structural fabrication where tolerances of ±0.5 mm are acceptable, plasma provides the necessary thickness capacity at far lower power consumption than an equivalent laser system.
• Handles oxidized, painted, and variable-thickness metal without preprocessing — Plasma cuts through rust, mill scale, paint, and surface irregularities. Fiber laser requires clean, rust-free, paint-free surfaces for rated cutting parameters.
• Offers lower assist gas cost — Compressed air or oxygen at $5–$10/hour versus nitrogen at $30–$50/hour for a 12 kW laser system. On continuous production, this cost difference is material.
• Produces portable, handheld configurations — Handheld plasma cutters enable on-site structural work, field repairs, and demolition cutting. No equivalent portable configuration exists for laser cutting.
• Enables weld-ready bevel cuts in a single pass — High-definition plasma bevel heads produce V/K bevels for weld preparation without secondary machining — effective at 30–50 mm thickness where laser bevel heads become less reliable.
• Requires lower electrical infrastructure investment — A standard CNC plasma system does not require the 100+ kVA electrical service upgrade that a 30 kW fiber laser demands.
• Produces large-particle fumes that are easier to filter — Plasma smoke consists of relatively large particles that settle and can be captured by standard industrial filtration. Laser cutting, particularly on stainless steel, produces submicron metallic particles requiring HEPA-grade or PTFE-membrane filtration systems — which are significantly more expensive.
• Allows in-house consumable replacement with minimal training — Nozzle and electrode replacement requires brief training and no specialist tools. No certified engineer is needed.

What Are the Key Limitations of Fiber Laser Cutting?

Although fiber laser cutting has significant advantages, it has 7 key limitations. The most significant is capital cost; others include electrical infrastructure requirements and strict material surface condition needs.

Ranked by practical prominence:

• Costs significantly more upfront — Entry-level systems from $50,000; industrial 12 kW systems $80,000–$150,000; 30 kW automated systems exceed $300,000. The capital cost barrier excludes many small job shops.
• Requires substantial electrical infrastructure — 30 kW systems need 100+ kVA electrical service capacity. Many existing fabrication facilities require costly electrical upgrades before installation.
• Demands clean, rust-free, paint-free material surfaces — Oxidized, painted, or variable-condition stock cannot be processed at rated cutting parameters. This restricts application in scrap processing, field work, and operations that cannot control material condition.
• Generates submicron metallic fumes — Laser cutting on stainless steel produces hexavalent chromium particles — a known carcinogen — in the submicron size range. HEPA-grade or PTFE-membrane cartridge filtration is non-negotiable, and these systems are expensive relative to standard plasma extraction.
• Struggles to compete on cost per cut above 40–50 mm — Using 30 kW+ laser power to cut material above 50 mm thick produces total cutting costs approximately 5× higher than plasma at the same thickness. Plasma remains the economically rational choice above this threshold in most production contexts.
• Requires radiation-shielded enclosures and OD5+ laser safety eyewear — Fiber lasers emit at 1,064 nm near-infrared wavelength, which passes through the cornea and strikes the retina. Safety eyewear rated OD5 or higher and fully enclosed machine housings meeting Class IV / Class 1 laser safety standards are mandatory.
• Requires certified engineers for cutting head maintenance — Laser cutting head maintenance is not in-house capable after basic training. Certified service is required, and cutting head replacement costs can reach tens of thousands of dollars per incident.

What Are the Key Limitations of Plasma Cutting?

Although plasma cutting remains a productive choice for thick-plate applications, it has 8 key limitations. The most significant is tolerance and edge quality; others include heat-affected zone width and the restriction to conductive metals only.

Ranked by practical prominence:

• Produces tolerances no better than ±0.5 mm — ISO Class 3–4 tolerance means plasma is unsuitable for precision engineering, direct assembly, or any application requiring part-to-drawing accuracy without post-machining. Even X-Definition plasma (ISO Range 2) achieves only ±0.1 mm on material under 10 mm.
• Generates a heat-affected zone 5–10× wider than fiber laser — Warping on thin sheet, martensitic layer formation in steel (brittle, prone to microcracks), and chromium depletion in stainless steel are documented consequences. May require post-weld heat treatment.
• Creates rough, beveled edges — Ra 12–128 µm surface roughness and inherent 1°–5° bevel angle require grinding or bead blasting before coating, precision welding, or final assembly. This edge condition is the direct cause of the 3,300 additional labor hours per 100,000 parts.
• Restricts to electrically conductive metals only — Cannot process any non-metallic material. This limitation cannot be overcome through system upgrades.
• Requires significant post-processing labor — Approximately 3,300 additional labor hours per 100,000 parts per year for grinding and edge finishing. At $25–$40/hour, this is $82,500–$132,000/year in hidden cost per 100,000 parts.
• Produces significant noise and UV radiation — Full PPE, UV shielding, and dedicated ventilation are required. The working environment is more demanding than a fully enclosed fiber laser cell.
• Requires human oversight due to consumable replacement — Nozzles and electrodes lasting 1–3 hours under heavy use prevent lights-out manufacturing. The production cell cannot run unattended overnight.
• Generates consumable costs of €10,000–€15,000/year — Nozzles, electrodes, swirl rings, and shield caps create a continuous and substantial ongoing cost that does not appear in the equipment purchase price.

What Are the Industrial Applications of Fiber Laser Cutting?

Fiber laser cutting is most commonly used in automotive manufacturing, aerospace, and electronics — but its application span extends to 8 distinct industrial sectors where precision, speed, or material flexibility are primary requirements.

Where fiber laser cutting provides its strongest industrial case:

1. Automotive — Body panels, chassis components, and motor lamination steel. Fiber laser blanking is replacing stamping presses for production runs under 50,000 units/year, eliminating tooling costs and reducing lead times. For EV motor lamination steel, laser cutting avoids work hardening — lower core losses in electric motor stators improve motor efficiency directly.
2. Aerospace — Turbine blades, structural frames, titanium and aluminum alloy components. Tight tolerances (ISO Class 1) are critical, and the narrow HAZ preserves the metallurgical integrity of aerospace-grade alloys.
3. Electronics — Circuit boards, micro-components, precision connectors, and heat spreaders. Minimum hole diameter and tight feature placement requirements are only achievable at laser precision levels.
4. Medical devices — Surgical tools, orthopedic implants, and diagnostic instrument components. The burr-free edge eliminates post-processing on sterile-critical applications, and material purity is preserved by the minimal HAZ.
5. Sheet metal fabrication — HVAC ductwork, electrical enclosures, machine housings, and general industrial components. The fiber laser is the workhorse of the modern sheet metal fabrication shop, covering 1 mm through 40+ mm in a single machine configuration.
6. Lights-out automated manufacturing — Automated tower loading enables 8+ continuous hours without operator intervention. A job shop running a fiber laser cutting machine with a SMART-TOWER storage system (10 or 15 pallets) can load blanks in the afternoon and collect finished parts the next morning. Plasma cannot achieve this — nozzle replacement requires human intervention every 1–3 hours.
7. Automotive EV (motor lamination) — Motor lamination steel requires a non-work-hardening cutting process to maintain the precise grain orientation that minimises core losses in electric motor stators. Stamping and plasma both introduce unacceptable work hardening for high-efficiency EV motor applications.
8. General manufacturing and job shops — Versatile production across 1 mm thin sheet through 40+ mm structural plate. A single CNC laser cutting machine with a range of power options covers the majority of daily production requirements for a mixed-product job shop.

What Are the Industrial Applications of Plasma Cutting?

Plasma cutting is most commonly used in shipbuilding, structural steel fabrication, and pipeline and energy sector applications — industries where thick-plate cutting speed and tolerance of ±0.5 mm for weld assembly are the primary production requirements.

Where plasma cutting delivers its strongest industrial case:

1. Shipbuilding — Hull sections, deck plates, bulkheads, and subsea structural members. Large-format, thick-plate carbon steel cutting where ±0.5 mm tolerance is acceptable for welded assembly. The large-bed format of gantry CNC plasma systems suits the oversized plate dimensions typical in shipbuilding.
2. Structural steel and heavy construction — Beams, columns, flanges, brackets, and gussets in 25–50 mm steel. Tolerance of ±0.5 mm is acceptable for weld assembly in most structural codes.
3. Pipeline and energy sector — Thick-walled pipes for oil, gas, and water infrastructure. Weld preparation bevels at 30–50 mm thickness are achievable in a single pass with high-definition plasma bevel heads.
4. Heavy equipment manufacturing — Machine frames, counterweights, brackets, and housings in 25–50 mm structural steel. Plasma provides the cutting capacity at lower capital cost than an equivalent high-power laser.
5. On-site and field cutting — Handheld plasma cutters enable structural repair, site fabrication, and demolition cutting. No laser-based equivalent portable configuration exists.
6. Automotive repair and fabrication — Cutting oxidized, rusty, or variable-condition stock without preprocessing. Useful for repair work and low-volume fabrication where material condition cannot be guaranteed.
7. Scrap processing and demolition — Rough cutting of structural members without material preparation requirements. Plasma handles painted, corroded, and composite surface materials that would block laser cutting parameters.
8. Steel service centers — Commodity steel cutting at high volume where ±0.5 mm tolerance is acceptable and the economics of lower capital cost and lower electrical infrastructure matter more than edge quality.

What Safety and Environmental Requirements Apply to Fiber Laser and Plasma Cutting?

The typical safety requirements for fiber laser cutting are: OD5+ laser safety eyewear, fully enclosed radiation-shielding housing (Class IV / Class 1 laser safety standards), and HEPA or PTFE-membrane filtration for stainless steel cutting. For plasma cutting, requirements are: ventilation system, UV shielding, full PPE, and noise controls.

Both processes require dedicated safety infrastructure, but the hazard profiles differ considerably. Four fiber laser safety requirements and four plasma safety requirements apply:

Fiber laser safety requirements:

• OD5+ laser safety eyewear — Fiber lasers emit at 1,064 nm, a near-infrared wavelength that passes through the cornea and focuses on the retina. Standard industrial safety glasses are insufficient. Eyewear rated OD5 or higher specific to the 1,064 nm wavelength is mandatory for anyone in proximity to an open laser beam.
• Enclosed radiation-shielding housing — Machines must be fully enclosed with interlocked covers meeting Class IV / Class 1 laser safety standards (CE marked on ACCURL systems). Enclosures prevent scattered beam exposure to operators and bystanders.
• HEPA-grade or PTFE-membrane filtration — Laser cutting on stainless steel produces submicron metallic fume particles including hexavalent chromium — a classified carcinogen. Standard cyclone or low-MERV filtration is insufficient. PTFE-membrane cartridges or HEPA-grade systems are non-negotiable for stainless steel laser cutting.
• PVC cutting prohibition — PVC must not be cut by fiber laser (or plasma). Thermal cutting of PVC produces toxic chlorine fumes.

Plasma cutting safety requirements:

• Ventilation and fume extraction — Plasma produces large smoke particles that settle and filter relatively easily by comparison to laser fumes — but the volume of fume at plasma temperatures is substantially greater per unit time. Dedicated extraction is required.
• UV radiation shielding — The plasma arc emits intense UV radiation. Welding-grade UV shields, curtains, or enclosed booths are required to protect personnel outside the cutting cell.
• Full PPE — Plasma cutting requires welding-grade face shield, heat-resistant gloves, and appropriate respiratory protection. The working environment is more physically demanding than a Class 1 enclosed laser cell.
• Noise controls — Plasma generates significant industrial noise levels. Engineering controls or personal hearing protection is required depending on exposure duration.

Indoor plasma cutting is achievable with proper extraction and PPE, but requires dedicated ventilation and UV shielding. The open-arc nature of plasma makes airborne hazard containment more challenging than the enclosed laser cell, where the enclosure itself contains both the beam and the fume.

What Fiber Laser Technology Advances Are Shifting the Laser vs Plasma Comparison?

Modern fiber lasers have dramatically expanded their competitive range against plasma because pump diode efficiency has improved from approximately 20% to approximately 70% and the cost per watt of fiber laser power has reduced by approximately 100× (IPG Photonics), driven by a structural shift in the manufacturing economics of laser resonators.

The phenomenon: High-power fiber lasers now outperform plasma at 50 mm+ plate thickness, inverting the traditional thick-plate assumption that defined purchasing decisions for two decades. Modern systems above 100 kW have been demonstrated in industrial conditions. The ACCURL X-Series at 60 kW — co-developed with MicroStep Europe — provides a commercially available realization of this capability, cutting mild steel at 40 mm approximately 2.5× faster than a 460A plasma cutter and stainless steel at 40 mm approximately 3.2× faster (IPG Photonics benchmark).

The underlying principle: Laser cutting first entered industrial use in 1964 for die tooling applications. The technology underwent continuous development over six decades, with the shift from CO₂ to fiber laser systems in the 2010s representing the most significant step change. Fiber lasers now hold 51.72% of the laser cutting machine segment (Mordor Intelligence, 2025), while the fiber laser market overall grows at 10.8% CAGR versus the plasma market’s 4.16–4.23%. The pump diode breakthrough — from 20% to 70% electrical-to-optical efficiency — fundamentally changed the economics by reducing the operating cost of high power, while the 100× reduction in cost per watt made multi-tens-of-kilowatt systems commercially viable for standard industrial buyers rather than only specialized research applications.

The mechanism: Three system-level improvements enable modern fiber lasers to cut thick metal competitively:

1. Improved beam delivery — Multi-mode fiber lasers with beam wobble and dynamic focus modulation distribute energy more effectively at the cut front on thick material, reducing melt pool instability and enabling cleaner cuts at thicknesses previously dominated by plasma.
2. Optimized assist gas delivery — Mixed nitrogen-oxygen assist gas for thick-plate laser cutting efficiently ejects molten material from deep kerf channels. High-power fiber lasers (40 kW+) using mixed N₂+O₂ cut steel faster than plasma across most thicknesses from 10 mm to 40 mm.
3. Enhanced thermal management — Advanced cooling systems maintain laser source stability during continuous high-power operation — enabling the 24/7 production schedules where the TCO advantage of laser fully materializes.

The laser cutting machine market is projected to reach USD 7.82 billion in 2026, with fiber lasers holding a 51.72% share of all cutting machine installations (Mordor Intelligence, 2026) — an adoption rate that reflects fabricator confidence in high-power fiber laser technology at scale.

How Do You Choose Between Fiber Laser Cutting and Plasma Cutting?

Selecting between fiber laser cutting and plasma cutting depends on material thickness and power budget, precision requirement, and production volume and labor cost structure — and the answer is not the same for every fabrication operation.

The Iron Triangle of the laser vs plasma decision has three axes: thickness (where does your work fall across the thin-to-thick spectrum?), precision (what tolerance does your end application require?), and ROI logic (what does your production volume justify?). The optimal answer differs by scenario.

Scenario A — Job shop, mixed orders, thin-to-medium steel (up to 25 mm): Recommended: 12–15 kW fiber laser with automated tower loading. At this thickness range, fiber laser outperforms plasma on speed, precision, and edge quality. The automation advantage is decisive — lights-out production enables 8+ hours of unmanned overnight operation. Plasma nozzles require replacement every 1–3 hours, preventing unattended operation. At $25–$40/hour labor rate and 100,000 parts/year, the plasma post-processing labor cost ($82,500–$132,000/year) erodes the capital cost advantage within one to two years.

Scenario B — Structural steel, heavy industry, thick plate (above 40 mm): Recommended: High-definition plasma with five-axis bevel head — or ACCURL SMART Giant (40 kW) / X-Series (60 kW) if production utilization justifies the investment. If your laser power is below 40 kW, plasma remains the rational choice above 40–50 mm because cutting costs at this thickness using 30 kW+ laser power are approximately 5× higher than plasma. High-definition plasma with a five-axis bevel head produces weld-ready V/K bevels in a single pass, and 3D bevel heads for laser become less reliable beyond 30 mm plate. However, if you are running an ACCURL SMART Giant (40 kW: mild steel to 100 mm) or X-Series (60 kW) at high utilization rates, fiber laser now competes directly even in this tier — the 20-month payback calculation applies.

Scenario C — Hybrid production environment: Running laser (tight-tolerance components) and plasma (thick, heavy-duty structural parts for weld assembly) on separate production lines is a viable strategy for operations with genuinely split requirements. Laser-plasma combination machines — single machines attempting both functions — are not recommended: plasma fumes contaminate laser optics, causing accelerated maintenance requirements and frequent breakdowns that eliminate the efficiency gain the combination was intended to deliver.

As Greg Paulsen (Director of Application Engineering, Xometry) states: “We almost always use lasers over plasma because of its superior detail resolution. Plasma cutting is lower cost, and works very well for items that you are welding together because you can sand or grind the edge condition.” This position reinforces that neither process is universally superior — the crossover point is power-dependent, tolerance-dependent, and production-volume-dependent.

The Iron Triangle decision matrix summarises the selection logic:

Decision Variable	Fiber Laser Zone	Gray Zone (ROI Analysis Required)	Plasma Zone
Thickness	Under 12 mm	12–25 mm	Above 25 mm (for standard laser)
Precision required	Under ±0.1 mm	±0.1–0.5 mm	±0.5 mm acceptable
Production volume	High (>50,000 parts/year)	Medium	Low-frequency / project work
Material type	Any (metals + non-metals)	Metals only, clean surfaces	Conductive metals, any condition
Capital budget	Higher available	—	Capital-constrained

Is Fiber Laser Cutting Better Than Plasma for Stainless Steel?

Yes, fiber laser cutting is better than plasma for stainless steel in most applications because it is faster, maintains corrosion resistance in the cut zone, and produces a surface finish that eliminates post-weld preparation labor.

Three specific factors support this conclusion: (1) A 60 kW fiber laser cuts stainless steel at 40 mm approximately 3.2× faster than a 460A plasma cutter (IPG Photonics benchmark); (2) Laser HAZ does not deplete chromium in the cut zone — plasma HAZ drives chromium migration, reducing corrosion resistance in the affected zone of stainless steel, which is unacceptable for food-grade, pharmaceutical, marine, or architectural applications; (3) Laser produces Ra 0.2–6.3 µm versus plasma’s Ra 12–128 µm, eliminating the bead blasting and grinding that stainless applications typically require before final passivation or welding.

Safety caveat: Stainless steel laser cutting generates hexavalent chromium fumes — HEPA-grade or PTFE-membrane filtration is non-negotiable. This is not a reason to avoid laser on stainless, but it is a capital cost and compliance requirement that must be planned for.

Is Plasma Cutting the Right Choice for Thick Structural Steel?

Yes, plasma cutting is the right choice for thick structural steel above 40–50 mm in most production contexts where laser power is below 40 kW, because cutting costs at this thickness using 30 kW+ laser power are approximately 5× higher than plasma.

High-definition plasma with a five-axis bevel head produces weld-ready V/K bevels in a single pass at 30–50 mm thickness — a capability that fiber laser bevel heads replicate less reliably at these depths. A tolerance of ±0.5 mm is acceptable for most structural weld-assembly codes, making the precision premium of laser cutting unnecessary and economically unjustifiable for this application profile.

The answer is nuanced, though: ACCURL SMART Giant (40 kW, mild steel to 100 mm) and X-Series (60 kW) now offer viable fiber laser alternatives even in thick structural plate for operations with high utilization rates. At 40 mm, the 60 kW laser outperforms a 460A plasma at 2.5× speed. The capital cost premium repays in approximately 20 months at full utilization. For operations running 24/7 with high-volume thick-plate requirements, the fiber laser TCO case is defensible even in plasma’s traditional stronghold.

What Would Happen If a Job Shop Switched From Plasma to Fiber Laser for 20 mm Steel Cutting?

Without the plasma cutting infrastructure, a job shop switching to fiber laser for 20 mm steel cutting would achieve approximately 2.4× faster cutting speeds and eliminate approximately 3,300 hours of annual post-processing labor per 100,000 parts, because at 20 mm, a 15 kW fiber laser operates in the crossover zone where throughput advantage and post-processing elimination together justify the capital premium.

Three-part outcome analysis:

(1) Condition: A job shop currently running a 300A CNC plasma cutter for 20 mm mild steel production, switching to a 15 kW fiber laser cutting machine.

(2) Predicted outcome: Cutting speed increases to approximately 2.4× the previous plasma rate at 25 mm (Voortman/LR006 data; at 20 mm the speed advantage is in the same range). Post-processing labor for 100,000 parts/year decreases by approximately 3,300 hours — equivalent to eliminating 1.6 full-time grinding operators. Material nesting efficiency improves as kerf width drops from 2–4 mm to 0.1–0.3 mm, enabling common-line cutting and reducing scrap. Edge quality jumps from ISO Class 3–4 (±0.5 mm, Ra 12–128 µm) to ISO Class 1 (±0.030–0.050 mm, Ra 0.2–1.6 µm) — parts become directly assembly-ready.

(3) Reasoning and constraints: At 20 mm mild steel, the 15 kW laser operates in the cost-efficiency crossover zone. For production volumes above approximately 50,000 parts/year, the post-processing labor elimination ($82,500–$132,000/year) combined with throughput improvement justify the capital premium within one to two years. Practical constraints to plan for: capital cost increase (from ~$20,000 plasma to $100,000–$150,000 laser range), electrical infrastructure upgrade requirement (100+ kVA service), operator retraining from plasma craft skills (arc reading, heat management) to digital proficiency (CAD/CAM nesting, process parameter management).

What Are the Common Misconceptions About Fiber Laser Cutting vs Plasma?

The most common misconceptions about laser vs plasma cutting result from outdated technology assumptions and incomplete cost accounting, producing purchasing decisions that misallocate capital and leave post-processing labor costs unrecognized in the total operational budget.

Three myths cause the most commercial damage in the current buying environment:

1. Myth: “Plasma wins above 16 mm.” This rule was accurate for 2010s-era laser systems below 20 kW. Applying it in 2025 without a power-level qualifier will cause a job shop to under-invest in fiber laser capability and systematically overpay in post-processing labor relative to the capital saving. The correct statement is: above 16 mm, the outcome is power-dependent. A 40 kW+ laser outperforms plasma across 16–40 mm. A standard 6–12 kW laser remains slower above 20 mm. A 60 kW system at 40 mm outperforms a 460A plasma at 2.5×. The crossover is not fixed at 16 mm — it shifts upward with laser power, and for high-power systems the crossover is at 40 mm or above. The flip side of this myth is equally important: plasma is not low-end technology. X-Definition plasma achieves ISO Range 3 cut quality on material above 10 mm and ISO Range 2 below — for structural weld-assembly applications where ±0.5 mm tolerance is acceptable, a fiber laser investment is economically unnecessary.
2. Myth: “Higher laser power always means faster cutting.” Buyers who equate wattage with throughput over-specify power but under-specify acceleration — and then discover that on complex-contour production the machine underperforms expectations. A 6 kW laser at 4G produces more finished throughput than a 20 kW laser at 0.8G on a nest of intricate parts with many direction changes. Acceleration (G-value) matters as much as power for complex-shape throughput. The ACCURL SMART Cube at 60 m/s² (approximately 6G) will outperform a higher-wattage machine at 0.8G on the right job profile.
3. Myth: “Plasma is economically superior for budget shops.” This conclusion comes from comparing equipment cost without loading post-processing labor. At $25–$40/hour, the 3,300 extra labor hours per 100,000 parts calculated in the cost section above equals $82,500–$132,000 — equivalent to the capital cost premium of a fiber laser within one to two years of production. A fabricator choosing plasma purely on equipment price is making a spreadsheet error: the labor cost difference does not appear in the purchase price but does appear in the payroll account every month. The correct decision framework measures cost per finished part, not cost per machine-hour.

What Are Alternatives to Both Laser Cutting and Plasma Cutting?

There are 3 main alternatives to both laser and plasma cutting: waterjet cutting, oxy-fuel cutting, and wire EDM.

Each fills a specific application niche where neither laser nor plasma is the optimal solution:

• Waterjet cutting — A cold cutting process that uses ultra-high-pressure water (with abrasive garnet for hard materials) to erode material. Produces no heat-affected zone — the primary advantage for heat-sensitive materials such as carbon fibre composites, rubber, and multi-layer laminates. Suitable for thick plates where laser economics are poor and plasma HAZ is unacceptable. Slower than both laser and plasma; high operating cost due to garnet abrasive consumption and high-pressure pump maintenance. Accuracy is better than plasma (typically ±0.1–0.25 mm) but inferior to laser.
• Oxy-fuel cutting — Uses a preheat flame and pure oxygen stream to oxidize (burn) steel at the cut zone. Suited for thick steel only (typically 25 mm and above); cannot cut aluminum or stainless steel. Lowest capital cost of any industrial cutting method. Lowest accuracy — rougher than plasma. Used primarily for large structural steel where precision and speed are secondary to simplicity and capital cost.
• Wire EDM (electrical discharge machining) — Removes material by repetitive electrical discharge between a thin wire electrode and the workpiece. Achieves tolerances of ±0.001 mm — an order of magnitude tighter than laser cutting and two orders of magnitude tighter than plasma. Extremely slow; only suitable for high-precision tooling, die sets, and hardened steel components where laser or plasma kerf or HAZ would be unacceptable. Not competitive with laser or plasma on throughput or operating cost for production cutting.

What Assist Gas Should You Use for Fiber Laser Cutting vs Plasma?

Selecting assist gas for fiber laser cutting depends on material type, required edge quality, and cutting thickness — and the choice directly changes how the laser vs plasma cost comparison calculates.

Three laser assist gas decision variables determine the optimal selection:

Variable 1 — Material type: Stainless steel and aluminum demand nitrogen for oxide-free, corrosion-resistant cut edges. Mild steel tolerates oxygen (faster cutting with oxide layer) or compressed air (cheapest, slight oxide). Copper and brass cut well with nitrogen.

Variable 2 — Edge quality requirement: Nitrogen produces oxide-free, weld-ready edges that require no pre-weld cleaning — particularly valuable on stainless. Oxygen cuts mild steel faster but produces an oxide layer on the cut face that requires removal before welding or coating. Compressed air falls between these on quality, at the lowest gas cost.

Variable 3 — Cutting thickness: Mixed nitrogen-oxygen assist gas is optimal for thick-plate laser cutting (10–40 mm). The combination enables high-power lasers (40 kW+) to eject molten material efficiently from deep kerf channels — it is this mixed gas strategy that enables 40 kW fiber lasers to compete with plasma at 10–40 mm.

Assist Gas	Best For (Laser)	Edge Quality	Cost	Notes
Nitrogen (N₂)	Stainless steel, aluminum, non-ferrous	Oxide-free, premium	$30–$50/hour (12 kW)	Best quality; most expensive
Oxygen (O₂)	Mild steel (speed priority)	Oxide layer on face	Lower	Faster on mild steel; not weld-ready without cleaning
Compressed air	Mild steel (cost priority), primed parts	Slight oxide	Cheapest	Cost-effective where slight oxide is acceptable
Mixed N₂+O₂	Thick plate (10–40 mm) mild/structural steel	Intermediate	Intermediate	Enables high-power laser to compete with plasma at thick sections

For plasma, the equivalent selection:

Assist Gas	Best For (Plasma)	Notes
Compressed air	Most carbon steel applications	Lowest cost; standard for most CNC plasma
Oxygen	Higher precision and speed on carbon steel	Preferred for HD plasma on structural steel
Argon-hydrogen	Thick aluminum and stainless	Reduces dross; extends consumable life on non-ferrous

A nitrogen laser produces a premium oxide-free edge that moves laser economics closer to plasma for applications where edge quality justifies the gas cost. An oxygen or compressed air laser cuts faster and more cheaply, moving the laser economics closer to plasma on cost per meter — though still maintaining the precision and HAZ advantages that plasma cannot match.

What Operator Skills Are Required for Fiber Laser vs Plasma Cutting?

Fiber laser cutting requires digital manufacturing proficiency versus plasma cutting’s craft-based intuition skills: the fundamental difference is that laser operators optimize through software, while plasma operators optimize through process reading.

Fiber laser operators work primarily with CAD/CAM nesting software. Production throughput depends on nesting efficiency, process parameter selection, and machine utilization management — all digital skills that can be learned systematically from vendor training and on-the-job experience. The laser machine’s automation features (SMART-TOWER pallet storage, automated nozzle cleaning, IoT monitoring) reduce the physical craft element further. The operator is effectively a digital manufacturing technician managing a programmable production system.

Plasma operators develop intuitive craft skills that meaningfully affect production performance. Skilled plasma operators outperform novices by 30%+ by interpreting arc pitch, observing spark spray patterns, and managing heat-induced plate warping — skills developed through experience that cannot be replicated by software. Plasma consumable replacement every 1–3 hours requires the operator to be present and attentive throughout the production shift.

This “craftsman vs programmer” skill divide has direct workforce planning implications: laser shops need CAD/CAM-proficient staff who are comfortable managing digital production systems; plasma shops need experienced metalworkers with hands-on cutting and heat management skills. Neither skill set is universally more available — the answer depends on your local labor market and existing workforce.

How Does ACCURL’s Fiber Laser Range Address the Laser vs Plasma Decision for Metal Fabricators?

ACCURL fiber laser cutting machines are most commonly used in sheet metal fabrication, automotive component production, and structural steel manufacturing — covering the full spectrum from thin-sheet job shop work to large-format thick-plate structural cutting.

With 33 years of manufacturing experience and more than 12,000 installed machines globally, ACCURL has developed a six-series range of fiber laser cutting machines that spans from entry-level thin-sheet production through to extreme-power thick-plate cutting in plasma territory. Every series carries a 3-year warranty and CE marking (Class IV / Class 1 laser safety), with critical components manufactured in Germany: Precitec cutting heads, Rexroth drives, and Alpha precision rack systems.

The range maps directly onto the three-tier laser vs plasma comparison framework:

Entry level — replacing air plasma for thin-sheet fabrication: The Smart series (1–3 kW) and SMART Cube (1–6 kW) are the fiber laser answer to air plasma systems for thin-sheet job shops. Smart series cuts mild steel to 10–25 mm depending on power; SMART Cube reaches 25–30 mm at 3–4 kW, with the added advantage of 60 m/s² (approximately 6G) acceleration — the highest in the ACCURL standard lineup — making it the optimal choice for complex-contour production where acceleration outweighs thickness capacity. The compact bed options (from 1050 × 2035 mm) suit operations with limited floor space.

Mid-range — versatile daily production across thin-to-medium plate: The SmartLINE fiber laser cutting machine (2–6 kW) covers the 6–20 mm battleground zone that defines most general fabrication shops. At 4 kW, SmartLINE reaches 30 mm mild steel — squarely in the contested zone. With ±0.05 mm positioning accuracy and optional SMART-TOWER pallet storage, SmartLINE supports lights-out production that plasma cannot achieve.

Industrial — the core laser vs plasma crossover zone: The MasterLINE fiber laser cutting machine NEXT (3–40 kW) covers the full 6–40 mm thickness range where laser and plasma compete directly. At 15 kW, MasterLINE NEXT cuts mild steel to 40 mm (50 mm extended) — well into territory that standard CNC plasma previously dominated. Positioning accuracy is ±0.03 mm, synchronous speed reaches 226 m/min, and acceleration is 25 m/s² (approximately 3G). The IPG Photonics YLS-ECO laser source (available at 20 kW and 30 kW) achieves 50% energy efficiency versus 25–35% for conventional systems, saving approximately $18,590/year in energy costs. The ACCURL Dynamic System 4.0 framework delivers 1.2G at Smart entry through 3G at MasterLINE — a direct comparison against plasma’s 0.5G–1G. An optional bevel head at ±45° enables 5-axis weld preparation without secondary machining. The MasterLINE 3015 15kW is available in the UK from £199,000 + VAT (stock) through IEM UK.

Heavy-duty — structural steel and large-format cutting: The SMART Giant (12–40 kW) addresses the structural steel and shipbuilding segment that plasma has traditionally dominated. At 40 kW, SMART Giant cuts mild steel to 100 mm — a capability that directly challenges the plasma systems that structural fabricators have relied on for decades. The simultaneous cut-and-load design on separate table sections maintains productivity on large-format sheets.

Next-generation — plasma-competitive thick plate with digital intelligence: The X-Series high-power fiber laser, co-developed with MicroStep Europe, spans working areas from 2,000 × 1,000 mm to 42,000 × 3,000 mm, with laser power up to 60 kW. The platform delivers 2D, 3D, and bevel cutting in a single system with full Industry 4.0 digital intelligence. At 60 kW, the X-Series cuts mild steel at 40 mm at 2.5× the speed of a 460A plasma cutter (IPG Photonics benchmark) — making the fiber laser directly competitive in plasma’s traditional stronghold.

If you are evaluating fiber laser cutting machines across the full power spectrum, ACCURL’s range covers every decision point in the laser vs plasma comparison — from the entry-level air plasma replacement through to the extreme-power thick-plate challenge.

What Are the Most Commonly Asked Questions About Laser Cutting vs Plasma Cutting?

The following 7 questions represent the most commonly asked technical and commercial questions about the laser vs plasma comparison.

Is laser cutting faster than plasma cutting?

Yes, laser cutting is faster than plasma cutting on material under 20 mm for standard systems (under 40 mm for 40 kW+ systems), but plasma is faster than standard lower-power lasers on thick plate above 25 mm. On steel up to 25 mm: 10 kW laser = 1.3× plasma speed; 12 kW = 2×; 15 kW = 2.4×; 20 kW = 2.8× (Voortman, 2024). A 60 kW laser at 40 mm cuts 2.5× faster than a 460A plasma.

Can plasma cutting achieve the same precision as laser cutting?

No, plasma cutting cannot achieve the same precision as fiber laser cutting because the arc geometry inherently produces a kerf that is wider and less consistent than a focused laser beam. Best plasma (X-Definition) achieves ISO Range 2 on material under 10 mm (±0.1 mm); standard CNC plasma achieves ±0.5 mm. Fiber laser achieves ISO Class 1 (±0.030–0.050 mm). The tolerance gap is inherent to plasma arc physics — it cannot be eliminated through upgrades.

Which cutting method produces less waste material?

Fiber laser produces a kerf of 0.1–0.3 mm versus plasma’s 2–4 mm kerf. Common-line laser cutting at 1 mm part spacing is not feasible with plasma. On a dense nest of 200 × 100 mm blanks in expensive material, the narrower laser kerf reduces scrap by a meaningful percentage across the sheet. On expensive materials, nesting savings from the 10–20× narrower laser kerf can pay for approximately half the laser machine cost within one year.

Can a fiber laser cut the same thickness as a plasma cutter?

Yes — high-power ACCURL fiber laser systems match or exceed standard plasma cutting capacity. The ACCURL SMART Giant at 40 kW cuts mild steel to 100 mm. The ACCURL X-Series at 60 kW directly competes with high-power plasma in thick-plate applications. Standard CNC plasma handles up to 38–50 mm; the ACCURL MasterLINE NEXT at 20 kW already reaches 50 mm (60 mm extended) on mild steel.

What is the main cost difference between laser cutting and plasma cutting?

Plasma is 2–5× cheaper as a capital investment ($15,000–$20,000 entry versus $50,000+ for laser). Per machine-hour, plasma is slightly cheaper ($15 vs $20). Per finished part, laser wins when post-processing labor is included — 3,300 extra grinding hours/year per 100,000 parts at $25–$40/hour equals $82,500–$132,000 in annual hidden cost that does not appear on the plasma equipment invoice.

Is plasma cutting suitable for stainless steel?

Yes, plasma can cut stainless steel — but the HAZ depletes chromium content in the cut zone, reducing corrosion resistance. For structural stainless steel where ±0.5 mm tolerance and moderate corrosion resistance are acceptable, plasma is adequate. For precision, corrosion-critical, food-grade, pharmaceutical, or marine stainless applications, fiber laser is the correct choice — it produces no chromium depletion and cuts stainless at 40 mm at 3.2× the speed of a 460A plasma.

What is the market growth difference between fiber laser cutting and plasma cutting?

The fiber laser market reached USD 7.7 billion in 2024 and is projected to reach USD 12.8 billion by 2029 at a CAGR of 10.8% (MarketsandMarkets). The plasma cutting market reached USD 1.5–1.81 billion in 2025 and is projected to reach USD 2.2–2.32 billion by 2031–2034 at a CAGR of 4.16–4.23% (IMARC Group; Mordor Intelligence). The fiber laser market is approximately 4–5× larger and growing more than twice as fast. Within plasma, high-definition plasma is the fastest-growing segment at 6.82% CAGR (Mordor Intelligence, 2025). Note that a narrower scope definition — covering only the CNC plasma cutting machine segment excluding handheld and non-CNC systems — places the plasma market at USD 699.5 million in 2025 (Fortune Business Insights), explaining the lower figure that appears in some reports alongside the USD 1.5–1.8 billion full-market figures.

The laser vs plasma cutting comparison does not produce a single universal answer — it produces a decision framework that maps your production profile to the optimal technology. If your work is primarily thin-to-medium steel (under 25 mm), precision matters to your end customer, or automation is a priority, fiber laser cutting delivers a stronger commercial case once total cost per finished part is calculated. If your work is thick structural steel (above 40 mm), tolerance of ±0.5 mm is acceptable for weld assembly, and capital is constrained, plasma remains the rational choice — at least until your production volume justifies a high-power fiber laser system’s capital premium.

The critical variable that most buyers miss is the post-processing labor cost. Fiber laser cutting machines produce burr-free, assembly-ready edges. Plasma cutting machines produce edges that require grinding. At scale, that grinding labor cost equals or exceeds the capital cost premium of the fiber laser. Whether you are evaluating a compact 3 kW SmartLINE for a thin-sheet job shop or a 40 kW MasterLINE NEXT for mid-thickness mass production, the decision framework in this article gives you the data to calculate that comparison for your own production volumes.

Which thickness range and precision level does your current production run concentrate in — and have you fully loaded the post-processing labor cost into your plasma-vs-laser comparison?