Nerdlinger
Stainless
- Joined
- Aug 10, 2013
- Location
- Chicago, IL
Hi Everyone!
I am considering a project where I would cut down 1.5" round prehard (~30 HRC) 4140 to 2" length of 1.375" X .875" rectangle. The alternative is to put it in a mill but since we need to get to all six sides of the part I am investigating what it would look like in the lathe so as to avoid tons of handling and gain unattended operation (it is a barfed lathe.)
The lathe is a swiss Tsugami B0386-III so the material is supported by the guide bushing pretty close to the cutter and since it is 1.5" round I consider the PART to be pretty rigid. As far as live tooling goes we have a 1.0kW ER20 spot and a 1.4kW ER16 spot. I imagine the bigger bearings and tool shank the ER20 spot can accommodate is advantageous over the higher-torque 1.4kW ER16 but it still is just a rinky dinky collet compared to what a 30 or 40 taper mill can brandish.
Can anyone recommend a radial-facing tool they have experience with on a comparably-equipped lathe regarding tooling specs as that will likely be the limiting factor (as opposed to the cutting tool itself)? If so, can you share what speeds, feeds, and depth of cut are working for you?
Thank you!
I am considering a project where I would cut down 1.5" round prehard (~30 HRC) 4140 to 2" length of 1.375" X .875" rectangle. The alternative is to put it in a mill but since we need to get to all six sides of the part I am investigating what it would look like in the lathe so as to avoid tons of handling and gain unattended operation (it is a barfed lathe.)
The lathe is a swiss Tsugami B0386-III so the material is supported by the guide bushing pretty close to the cutter and since it is 1.5" round I consider the PART to be pretty rigid. As far as live tooling goes we have a 1.0kW ER20 spot and a 1.4kW ER16 spot. I imagine the bigger bearings and tool shank the ER20 spot can accommodate is advantageous over the higher-torque 1.4kW ER16 but it still is just a rinky dinky collet compared to what a 30 or 40 taper mill can brandish.
Can anyone recommend a radial-facing tool they have experience with on a comparably-equipped lathe regarding tooling specs as that will likely be the limiting factor (as opposed to the cutting tool itself)? If so, can you share what speeds, feeds, and depth of cut are working for you?
Thank you!