Causes and Solutions for Burrs in Laser Cutting Machines

  Laser cutting machines may produce burrs during the cutting process, which can affect both cutting quality and product aesthetics. Do you know why burrs occur and how to resolve them?

In fact, burrs refer to excessive residual particles on the surface of metal materials. When a laser cutting machine processes a workpiece, the energy generated by the laser beam vaporizes and evaporates the material surface, achieving the cutting effect.

Main Causes of Laser Cutting Burrs

Insufficient Laser Power

Inadequate output power prevents complete material melting, leading to burr formation.

Focal Position Deviation

Incorrect beam focus alignment affects cutting precision, resulting in burrs.

Low Gas Purity

Impure auxiliary gas fails to effectively remove molten slag, increasing burrs.

Cutting Speed Too Slow

Excessively slow cutting causes uneven melting, leaving residual slag on the cut surface.

Laser Beam Misalignment

Deviation in the laser beam's focal point reduces cutting accuracy.

Prolonged Operation Leading to Instability

Extended operation can degrade machine performance, affecting cutting quality.

Solutions and Optimization Measures

To minimize or eliminate laser cutting burrs, the following measures can be implemented:

Improve Gas Quality

Use high-purity gas instead of cylinder gas. Optimize auxiliary gas parameters by selecting the appropriate type (e.g., oxygen, nitrogen, or compressed air) and adjusting pressure to ensure effective slag removal.

Adjust Laser Power

Verify the machine's operating status and ensure proper power output. Fine-tune laser power based on material thickness and type.

Optimize Focal Position

Calibrate the focus to ensure precise beam alignment on the cutting area.

Optimize Cutting Speed

Conduct test cuts to determine the optimal speed, avoiding excessively fast or slow rates to enhance cutting quality.

Calibrate the Laser Beam

Regularly adjust the focus to prevent beam misalignment.

Perform Regular Equipment Maintenance

Allow the machine to cool down to prevent instability from prolonged operation. Schedule routine optical system maintenance and calibration to ensure cutting precision.

Huawei Laser Reminds You: If a material exhibits burrs, it can be classified as defective—the more burrs, the lower the quality. Therefore, precise parameter adjustments and equipment maintenance are critical in laser cutting operations.