I got the inserts from MSC - it says "Broussard Enterprises, LLC" on the case but I can't find them by doing a web search.
I also am facing and turning an OD with a CNMG 432 insert at around the same speed and its taking forever. Its my first time running this program and aluminum so I could be way waaay off on speeds. A machinist next door told me that he never exceeds 1/2 the nose radius for the step-over so I was just sort of guessing here.
I was hoping I could crank that sucker up because the cycle time is long.
Can someone suggest a good range for roughing and finishing? I get an almost mirror shine on the OD with 0.003IPR 0.005DOC 2500rpm, but it's a pretty slow pass. I just cranked it up to 0.005IPR 0.100DOC for roughing and left it like that... but if I can go faster I will. |