I'm. Turning a 1 1/2 inch 4 insert cutter at 750 rpm at 4 inches a minute with a depth ot .075 .
The chips are coming off dark blue - purple , lots of them. What I'm milling is 2.5 inches by 6 inches long . I have to remove .750 . It's not making any noise , actually sounds good while cutting. Have already made 2 gallons of chips, insert life seems like it's going to be fine. Is this good or bad?
Thanks ron
The chips are coming off dark blue - purple , lots of them. What I'm milling is 2.5 inches by 6 inches long . I have to remove .750 . It's not making any noise , actually sounds good while cutting. Have already made 2 gallons of chips, insert life seems like it's going to be fine. Is this good or bad?
Thanks ron