Nerdlinger
Stainless
- Joined
- Aug 10, 2013
- Location
- Chicago, IL
Hi Everyone!
I need to lop one of the round edges off a 1-1/2" round 4140 PH (30HRC) bar, about 2" long. Please see the attached picture. The dotted green line is where I need to cut to. The machine is a 30-taper dual contact Speedio and the vice is a 6" Kurt hydraulic vice.
1. Is it fine to hold round stock just on flat walls of a vice or should I taper them like I did in the pic? I thought a 10 degree taper would help keep the part from pulling up?
2. On a small machine like a Speedio is the best way to remove that material still just with a face mill? A part of me thinks it might actually be faster to do a zig zag thing with like a 1/2" end mill and then leave .005" for a finish pass with a face mill. I've never been terribly confident with my 30-taper's ability to hog off material with a face mill...
Thank you!
I need to lop one of the round edges off a 1-1/2" round 4140 PH (30HRC) bar, about 2" long. Please see the attached picture. The dotted green line is where I need to cut to. The machine is a 30-taper dual contact Speedio and the vice is a 6" Kurt hydraulic vice.
1. Is it fine to hold round stock just on flat walls of a vice or should I taper them like I did in the pic? I thought a 10 degree taper would help keep the part from pulling up?
2. On a small machine like a Speedio is the best way to remove that material still just with a face mill? A part of me thinks it might actually be faster to do a zig zag thing with like a 1/2" end mill and then leave .005" for a finish pass with a face mill. I've never been terribly confident with my 30-taper's ability to hog off material with a face mill...
Thank you!