- Joined
- Sep 28, 2013
- Messages
- 4,272
Hi all,
busy thinking about tooling for my new to me 6 x 18 size lathe instead of working on an exam. I'm quite happy grinding HSS tools and get good results, but one issue I keep butting up against is parting >1in diameter parts. The HSS parting tool I ground from a 1/4x3/8 blank works ok, but I can't grind it to part larger parts without losing its ability to resist flex. I've been looking at those Iscar style indexable blades - Shars has a 3/4in tall one for reasonable money that uses GTN style inserts. Providing that the QCTP I plan on building can get the tip low enough to be on center, is there any reason to use a P or T style HSS blade over this?
thanks!
matt
busy thinking about tooling for my new to me 6 x 18 size lathe instead of working on an exam. I'm quite happy grinding HSS tools and get good results, but one issue I keep butting up against is parting >1in diameter parts. The HSS parting tool I ground from a 1/4x3/8 blank works ok, but I can't grind it to part larger parts without losing its ability to resist flex. I've been looking at those Iscar style indexable blades - Shars has a 3/4in tall one for reasonable money that uses GTN style inserts. Providing that the QCTP I plan on building can get the tip low enough to be on center, is there any reason to use a P or T style HSS blade over this?
thanks!
matt