Every company invests in laser cutting technology to cut materials neatly and cleanly, without burrs. But sometimes, it happens the other way. Here is a list of what to check and correct to ensure proper cuts on your laser cutting machine.

1. Check protection lens
   • A dirty or damaged protective lens reduces transmitted energy.
   • This will hinder proper cut quality and produce slag.
   • It is recommended to replace the protective lens.
2. Nozzle selection
   • Different materials and thicknesses need different nozzles.
   • In case of improper nozzle selection, cutting quality will be effected negatively
   • Review your parameter selection chart if unsure.
3. Beam centering control
   • Beam centering problem is a primary cause of the burrs.
   • Check the beam centering by directing a short laser beam onto a piece of tape (we recommend our heat-resistant PTFE tapes) and adjust the beam alignment.
4. Gas pressure adjustment
   • Make sure the pressure gauge of the gas supply is open and providing adequate pressure.
   • Ensure you select the gas pressure according to the material type and thickness.
   • Always ensure to purge any remaining gas when switching from O2 to N2 or vice versa.
5. Using rusty material
   • Good material quality is key to good quality cuts.
   • If there is rust on the material, it is advisable to replace or clean it before cutting.
   • As a quick solution, you can apply film cutting parameters before starting to cut the material to remove the rusty material.
6. Adjust the focus
   • Adjusting the focus and finding the optimal position can lead to a significant improvement in cutting quality.
   • The right focusing distance is related to the material type, thickness, nozzle, beam and optical parameters, hence it can be different from laser to laser.