Industrial Engineering

Fiber Laser Cutting Time & Fabrication Cost Calculator

Predict cutting speeds, piercing duration, cycle time, assist gas consumption, total electrical draw and fabrication quotes. Inputs laser power (1kW~60kW), alloy type, sheet thickness, perimeter length, pierce count, assist gas and local hourly rates.

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How to use Fiber Laser Cutting Time& Fabrication Cost Calculator

  1. Enter Laser generator output power (kW) and adjust the options as needed.
  2. Run the tool and inspect its results, evidence and limitations.
  3. Copy or download the result, then verify it against the actual website, source data or business records.

Try a concrete example

Cutting 3mm stainless steel with a 6 kW laser over 45m perimeter and 18 pierces using 16 bar N₂: estimated cutting speed is 8.44 m/min and part cycle time is 6.22 minutes (0.104 hr). Consumes 3.60 m³ N₂ ($7.92), 3.09 kWh electricity ($0.46), and machine/labor overhead of $4.67: total cutting cost is $13.05 ($0.29/m). Assist gas accounts for 60.7% of total cost!

How to interpret results

Assist gas (especially high-pressure nitrogen for medium-thick plates) often exceeds electricity and labor costs combined. Selecting appropriate gases and common-line nesting reduces fabrication expenses by 20% to 40%.

Frequently asked questions

Why must stainless steel and aluminum be cut with high-pressure nitrogen rather than oxygen?

Oxygen reacts exothermically in the molten kerf, leaving a blackened brittle oxide slag edge that hampers appearance and causes weld porosity or coating adhesion failure. High-pressure nitrogen (14~20 bar) mechanically blows molten alloy clear without chemical reaction, producing a clean mirror-grade finish.

How significantly do pierce times and counts impact laser fabrication costs?

Piercing shoots molten spatter that degrades protective cover slides. Progressive pierce on 6mm+ plates takes 0.5~2.0s per hole. On perforated parts, total pierce time can exceed linear contour cutting time. Common-line cutting and continuous chain cutting are key to reducing costs.

How much can shop air assist save compared to high-pressure bottled nitrogen?

Shop air contains ~78% nitrogen and 21% oxygen. For 1~4mm thin gauge sheet, a 16 bar high-pressure compressor with refrigerated drying and filtration replaces liquid nitrogen. Air assist gas cost is merely electricity (~$0.05~$0.15/m³), slashing gas expenses by 80% to 90% versus liquid nitrogen ($1.5~$2.5/m³).

How does higher laser power (e.g. 3kW vs 12kW vs 30kW) dramatically improve economics?

Laser feed rates scale exponentially with output power. For 10mm steel, 3kW cuts at ~1.2 m/min, while 12kW cuts at ~5.5 m/min (4.5x faster). The drastic cycle time reduction dilutes hourly machine depreciation, labor and gas overhead, reducing unit piece cost by over 40%.

fiber laser cutting time gas and part cost calculator practical guide and common questions

What does a fiber laser cutting time gas and part cost calculator do?

Fiber laser cutting costing integrates thermal molten kerf dynamics and high-pressure assist gas fluid mechanics. Cutting stainless steel and aluminum demands high-pressure nitrogen (14 to 20 bar) to purge molten dross and prevent oxide discoloring, with gas consumption accounting for 30% to 50% of operating expenses.

Who is this for, and when is it useful?

Sheet metal fabrication shop managers, CNC laser cutting technicians, quotation estimators and metal part buyers pricing custom laser profiling orders.

How do I use this fiber laser cutting time gas and part cost calculator?

Enter fiber laser power (3kW to 30kW), material alloy (mild steel, stainless, aluminum), sheet thickness, total contour cut length, pierce count and assist gas type (high-pressure N2, O2, compressed air) to estimate cutting feed rate, cycle runtime, assist gas volume and cost, electricity power usage and hourly machine overhead, outputting total part cost and cost per meter.

How should I interpret the results?

Total part cycle time depends heavily on pierce duration and rapid positioning idle in addition to linear cutting feed rates. The tool models assist gas volume, fiber laser and water chiller electrical power draw, optical consumables and hourly equipment amortization for competitive quotation.

Where is the work performed, and which services receive data?

Sheet metal geometry, runtime gas consumption and laser machining costs calculate locally in your browser. CAD fabrication drawings and quoting terms are never submitted to any cloud server.