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Common Problems and Solutions of Laser Cutting on Stainless Steels

Mar 14, 2020

Laser cutting stainless steel uses the energy released when the laser beam is irradiated on the surface of the steel plate to melt and evaporate the stainless steel. For the manufacturing industry that uses stainless steel sheet as the main component, laser cutting stainless steel is a fast and effective processing method.

If the laser cutting process parameters are strictly controlled during processing, the good corrosion resistance of such materials can be maintained. The most important process parameters that affect the cutting quality of stainless steel are cutting speed, laser power, and air pressure. The specific problems and debugging methods are as follows:

1. Generate small, regular burrs

76-1

Possible Causes:

  • Focus is too low

  • Feed rate is too high

Solutions:

  • Raise focus

  • Reduce the feed rate

2. Long irregular filamentous burrs are generated on both sides, and the surface of the large plate is discolored.

76-2

Possible Causes:

  • Feeding rate is too low

  • Focus is too high

  • Air pressure is too low

  • Material is too hot

Solutions:

  • Increase the feed rate

  • Lower focus

  • Increase air pressure

  • Cooling material

3. Generate long irregular burrs on only one side of the cutting edge

76-3

Possible Causes:

  • Misaligned nozzle

  • Focus is too high

  • Air pressure is too low

  • Speed too slow 

Solutions:

  • Centering nozzle

  • Lower focus

  • Increase air pressure

  • Increase speed

4. Materials are discharged from above

76-4

Possible Causes:

  • Power is too low

  • Feed rate is too high

  • Air pressure is too high

Solutions:

  • When this happens, press the pause button immediately to prevent slag from splashing onto the focusing lens. Increase in power. Reduce the feed rate. Reduce air pressure.

  • In addition to the above common problems, yellowing of cutting edges may also occur

Possible Causes:

  • Oxygen impurities in nitrogen

Solutions:

  • 威廉希尔官方下载e good quality, high purity nitrogen


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