Maintaining good corrosion resistance of such materials can be achieved by strictly controlling the laser cutting process parameters during the machining process.
The most important process parameters affecting the cutting quality of stainless steel are cutting speed, laser power, and air pressure.
1. Generation of tiny, regular droplet-like burrs
Possible causes:
(1) The focus is too low
(2) The feed rate is too high
Solutions:
(1) Raise the focus
(2) Reduce the feed rate
2. Long, irregular filament-like burrs are produced on both sides, and the surface of the large plate changes color
Possible causes:
(1) The feed rate is too low
(2) The focus is too high
(3) The air pressure is too low
(4) The material is too hot
Solutions:
(1) Increase the feed rate
(2) Lower the focus
(3) Increase the air pressure
(4) Cool the material
3. Long, irregular burrs are produced only on one side of the cutting edge
Possible causes:
(1) The nozzle is not centered
(2) The focus is too high
(3) The air pressure is too low
(4) The speed is too low
Solutions:
(1) Center the nozzle
(2) Lower the focus
(3) Increase the air pressure
(4) Increase the speed
4. Material is discharged from the top
Possible causes:
(1) The power is too low
(2) The feed rate is too high
(3) The air pressure is too high
Solutions:
Press the pause button immediately when this situation occurs to prevent slag from splashing onto the focusing lens. Increase power, reduce feed rate, and reduce air pressure.
5. The cutting edge turning yellow
Possible cause:
The nitrogen contains impurities of oxygen
Solution:
Use high-quality, high-purity nitrogen.
