bastarddsm
Aluminum
- Joined
- Feb 18, 2014
- Location
- Southern Illinois University
So I've been running my vmc for a year or so now, and I feel like I'm getting a decent handle on stuff, but sometimes I'm second guessing myself.
Anyway I picked up a shars 3" 45* facemill with the korloy seht x83 inserts a bit ago and have been running it in 6061 like I think I should have been. Been running it about 3100sfm, 0.005"ipt. Usually full width and as much as 0.05" deep. I'm programming a part right now and was looking around to see what I should really be doing, and looks like I should only be like 1100sfm. Is that right? Have I been too hard on it? I can't say the machine objects too it. The machine is a Tree VMC1060 big old 20hp box way deal. What should I be doing for finishing, so far I've been just backing off the feed and depth of cut to like .010"
What about high speed steel stuff. I've been using YG1's aluminum specific hss endmills for a while. Ive been running them about 2x the recommended sfm. I have a 3/4 in the machine I've been running 6500rpm (1200sfm) and 150ipm (.011ipt) usually 1" axial, and 0.125" radial. It's removed about 50lbs of chips so far and still going, but it's starting to dull a bit. Flood coolant obviously. Usually runs about 75% spindle load, with peaks at like 150 when it gets in a corner or whatever.
So am I going to ruin stuff, or doing what I should be doing. I should be just trying to make this run trouble free so I can do other things, but it's hard to not want to see what it can do.
Anyway I picked up a shars 3" 45* facemill with the korloy seht x83 inserts a bit ago and have been running it in 6061 like I think I should have been. Been running it about 3100sfm, 0.005"ipt. Usually full width and as much as 0.05" deep. I'm programming a part right now and was looking around to see what I should really be doing, and looks like I should only be like 1100sfm. Is that right? Have I been too hard on it? I can't say the machine objects too it. The machine is a Tree VMC1060 big old 20hp box way deal. What should I be doing for finishing, so far I've been just backing off the feed and depth of cut to like .010"
What about high speed steel stuff. I've been using YG1's aluminum specific hss endmills for a while. Ive been running them about 2x the recommended sfm. I have a 3/4 in the machine I've been running 6500rpm (1200sfm) and 150ipm (.011ipt) usually 1" axial, and 0.125" radial. It's removed about 50lbs of chips so far and still going, but it's starting to dull a bit. Flood coolant obviously. Usually runs about 75% spindle load, with peaks at like 150 when it gets in a corner or whatever.
So am I going to ruin stuff, or doing what I should be doing. I should be just trying to make this run trouble free so I can do other things, but it's hard to not want to see what it can do.
