What to do if your laser cutting machine isn't cutting stainless steel

Time:2025-10-11

When cutting stainless steel, constantly check process parameters: speed and power.

Matching speed and power is critical.

1. Cutting Speed Too High:

Phenomenon: The kerf is very thin, with slight dross at the bottom. It seems the laser is running too fast, not melting enough material.

Solution: Significantly reduce the cutting speed. This is the most common operator error. Thick plate cutting speeds are inherently slow. For example, cutting 20mm stainless steel with a 4000W laser might result in a speed of only 0.3-0.5 m/min. Please refer to the parameter sheet provided by the equipment manufacturer and start testing at a lower speed.


2. Laser Power Too Low:

Phenomenon: Melt is visible in the kerf, but the energy is insufficient to penetrate the material.

Solution: Increase the laser power appropriately. Ensure the power setting matches the actual plate thickness.


3. Speed Too Low:

Phenomenon: The kerf is too wide, causing excessive burning of the plate, even creating a large hole, but the plate still cannot be cut. This is due to excessive heat accumulation, which alters the cutting process.

Solution: Increase the cutting speed appropriately.

Tip: Draw a line on the board and use the "Power Ramp" or "Speed Ramp" function to test and quickly find the approximate parameter range that can be cut through.


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