Parting off

[jamesgates1000]

I use a Haas SL30 at work with sandvik parting off tools and tips, and rarely run them at such high speeds, I guess these speed are for perfect conditions, maximum rigidity, tool as close to the chuck as possible, tool dead on centre etc.
I would suggest running the parting off operation at 800-1200rpm with a feed of 0.05mm/rev.
Feed down to a few mm of them breaking off then drop the speed down to 300rpm to cut them off, this will avoid the tool flinging them off causing dents.

[Saracen]

Thanks for your suggestions.

I've added a couple of retracts on the way through to break the swarf, reduced the feed speed and increased the speed to around 1500rpm. This, with the addition of some cutting fluid, seems to make the parting off much quieter, and the finish on the parts is nice and smooth.

I haven't tried the IC20 tips yet, but I hope to do that next week.

Adrian.