Cutting conditions for 1/4 aluminum for Amada FO 3015 NT

[meps11]

Cutting 1/4 aluminum with 7.5 lens Feed 30/min power 4000 Frequency 6 duty 100 gas pressure 1.10 gas N2 nozzle gap .02 Focus -0.098 .Aluminum type 3003 .Cutting through but still have major burr on back side .If anyone can take a screen shot of there Alum conditions for 1/4 for an a Amada or any other suggestions would be helpful .. THX

 

[laserkatana]

No matter what you do you will have burr on that thickness of aluminum on any CO2 Laser. The goal is to minimize it because you won't get rid off it. I would say try using a double nozzle if you have one, or better yet, try to cut it with shopair if you have the pressure and the volume.