Mild steel marking

[JeanFreli]

Hi i recently did some marking on half inch stainless steel and it work fine. Now they think to give me some marking to do on mild steel. I have a 4kw fiberlaser and the lowest power i can go is 400 watts. Is that possible to do it and what gas will be best nitrogen or oxygen? Is there kind of mild steel working better than others?

 

[Merrill101]

Are you talking about etching? I typically etch using shop air as the assist gas. 500w, 350 inches per minute and about 20-25% duty. Works like a charm. You can use O2 if you don't have good dry air.

 

[JeanFreli]

Well thanks for the answer Merill101. Yes talking about etching. I'll try O2 and the power you say. I guess you are using a CO2 laser. I am not familiar with the duty but I will start with that. I will give feedback on it.

 

[Merrill101]

I'm running an Amada 4kw Fiber laser. Duty is just the percentage of the power call out. Good luck.

 

[rexhang]

If you just marking on mild steel and content marking area not big, i think 30W~50W fiber laser marker will be enough for you.

Rex Hang

http://www.heatsign.com/