Cutting 1" Mild Steel

[Tkuba]

Good Morning,

I am looking to get help with cut conditions for 1" Grade 50 mild steel. If anyone has suggestions I would greatly appreciate it. The condition I have attached in the picture worked on the last sheet we had received in but now does not work at all i get chatter on the whole part. I need a cut condition that will work with good quality steel and a poor quality steel if possible?

Thank you,

 

[drossfree]

wtf is chatter need to see your cut

 

[laserkatana]

What type of nozzle are you using? What are your BO Settings? What is your power, frequency, duty, feedrate, gas pressure? it it a 45CF-R resonator or 60XF? What pierce type are you using?