Small hole processing 20mm thick, Amada X1 (LVplus) 3

[jacobsonse]

Hi.
We are cutting 20mm mildsteel with some small holes size about 9mm and they are right size for about 3/4 deep then they get larger.
Cutting with 10Hz , Current control, speed 100mm/min gas 1bar focus +2,5 nozzle D24 1,5mm standoff 1.5mm

What should i do too improve the cut quality?

 

[evans1089]

From experience when we started to cut 20mm, any hole we cut, we made sure the lead in was as big as possible. Our Dr.Abe software usually suggests what lead in is required, along with the radius prefered also.

So try a longer lead in, and try it with a radius.

 

[evans1089]

Something like this?

http://files.engineering.com/getfile.aspx?folder=4aec95c6-5be8-4685-a025-9e8f70b1164d&file=20mm.jpg

 

[jacobsonse]

Ill try it next time i cut 20mm. Thank you.

 

[jacobsonse]

Put a 8.8 drill in it too check backside size.