Cole2534
Diamond
- Joined
- Sep 10, 2010
- Location
- Oklahoma City, OK
I think what you're seeing is the heat staying in the chip, where it belongs, rather than transferring into the base material. And if going slow enough you probably got some weird stick/slip vibration stuff.
You know how an engine runs like shit if the idle is too low or comes apart when you send the speed to the moon? Well, your cutting tools behave similarly. That lathe has plenty of ass to push that 3mm parting tool, so learn about SFM, feed, and how apply them.
Tool alignment is also critical, normal to the work axis and on center, because these don't have much side relief.
You know how an engine runs like shit if the idle is too low or comes apart when you send the speed to the moon? Well, your cutting tools behave similarly. That lathe has plenty of ass to push that 3mm parting tool, so learn about SFM, feed, and how apply them.
Tool alignment is also critical, normal to the work axis and on center, because these don't have much side relief.