In today's metal sheet processing industry, CNC fiber laser cutters are widely used due to their high precision, efficiency, and smooth cutting quality. However, even the best laser cutting machines may encounter issues during operation. One common problem is saw-tooth edges on the material's cutting section.
Why does this happen? Today, RAYTHER LASER, a professional fiber laser cutting machine manufacturer, will analyze the key reasons and provide solutions.
Common Causes of Saw-Tooth Edges in Fiber Laser Cutting
1. Poor Machine Parallelism
If the laser cutter's parallelism is not properly adjusted, the machine may become unstable during operation, leading to uneven cuts and saw-tooth edges.
2. Equipment Vibration
Vibration can come from two sources:
- Internal vibration – Caused by unstable machine movement during cutting.
- External vibration – Nearby equipment (e.g., exhaust fans, water chillers) placed too close can transmit vibrations to the laser cutter.
3. Non-Parallel Guide Rail Installation
If the Y-axis guide rails are not installed parallel, the laser head may move unevenly, resulting in jagged cutting edges.
4. Loose Lens or Unstable Beam Path
If the laser lens is not securely fixed, the beam may shake during operation, causing irregular cuts and saw-tooth patterns.
5. Worn-Out Sliders or Contaminated Guide Rails
After long-term use, sliders may wear out, and dust or debris inside the guide rails can cause vibrations, leading to poor cutting quality.
How to Troubleshoot Saw-Tooth Cutting Issues?
- Check Machine Stability – Hold the laser head manually during operation. If the saw-tooth disappears, the issue is likely slider or rail wear.
- Inspect Belts & Gears – If the problem persists, check for loose belts, damaged gears, or misaligned drive systems.
- Verify Installation & Calibration – For new machines, improper installation or unmatched motor and driver settings could be the cause.
RAYTHER LASER – Your Trusted Fiber Laser Cutting Partner
As a leading fiber laser cutting machine manufacturer, we provide high-quality machines with stable performance and precision cutting. Our 24/7 technical support ensures you get the best solutions for any laser cutting challenges.
Facing saw-tooth issues? Contact us rayther@raytherlasercutter.com now for expert assistance!
-- Rayther Laser Allen Wang