Why are there white lines when laser marking black on stainless steel?

in FAQs about Laser Marking, , ,

When using a fiber laser marking machine, this problem occurs:

Laser black marks on stainless steel with white lines.

Recommended solution:

1. Change the Hatch method.

2. Using the bias focus method, the frequency remains unchanged.

3. Slightly defocused. Increase the frequency and increase the speed.

4. Change the Line Distance of Hatch.

If the above four parameter modification methods cannot solve the problem, please try changing the galvanometer.

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