Carbon steel cutting process
Mar.26.2025
Conditions:
- The minimum oxygen purity is 99.95% (or 3.5)
- The lens and the nozzle are in good condition.
- Good materials (no oxidation, no paint).
- The laser mode has no distortion (the compressed air quality ensures that there are no paint substances and volatile gases).
| Problem | Possible reasons | Solution method |
|
Poor cutting quality on the opposite side
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The nozzle hole is blocked or not round.- The optical path coaxiality is not centered. | Check the status of the nozzle.Check the optical path and realign it. |
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The cutting width is large at the beginning.
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The lead-in wire is too long or the lead-in method is incorrect.-The perforation time is too long.-There is too much heat during cutting. | Check the lead-in method and the lead-in length.- Check that the perforation time does not exceed 2 seconds.-Reduce the duty cycle by 2-3% each time. |
|
The cutting seams of the entire contour are all wide.
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The air pressure is too high.- The focus is too high.- The power is too high.- There is something wrong with the material. | Reduce the pressure by 0.1 bar each time.- Reduce the power- Check the focus of the lens.-Detect the material of the plate.-Check the protective lens. |
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It flows out from the upper surface of the material workpiece, and there are welding spots beneath the material.
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The power is low.- The speed is high……The air pressure is low. | Increase power.- Reduce speed- Increase the pressure. |
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Small burrs are angled to lower cut lines.
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Speed is too high- low power- Pressure is too low | reduce speed- Step by step increase the pressure 0.1-0.2 bar each time |
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Deep lines on cutting side.
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Too much local heat- Material issues | Change the cutting order- Replacement material |
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Burnt paper phenomenon "At the bottom of the workpiece
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Pressure is too high.- The speed is too high. | Reduce pressure by 0.1-0.2 bar each time.- Reduce speed |
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There is slag and solder in the lower part.
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Focus is too low- Pressure is too low | High Focus 0.1-0.2 mm per step- Increase pressure 0.1-0.2 bar per step |
