Machinerer
Cast Iron
- Joined
- Jun 12, 2009
- Location
- Clearwater, FL
We have a relatively new (less than 2yo) Matsuura H.Plus-500. While cutting a part awhile back, made of 17-4 H1150 we ran into some vibration issues. The part had to be moved to this machine, from an old 50 taper VMC because of the VMC going down for a seperate issue. I was using an Ingersoll 2.5" High Feed Mill, 300SFM, .40IPT, .040"DOC and 1.5"WOC. The VMC was able to run this cut just fine, with about 90 minutes cut time per edge. After moving the part to the Matsuura, the Matsuura is also able to run this cut just fine, with similar tool life UNLESS you cut in the X+ direction. The Matsuura will start to buck and jump like crazy!! X-, great. Y-, great. X+, blah.
I was able to adjust my parameters, and change my toolpath to avoid X+ cutting, but this is a brand new machine. Why is it able to do it in 2 directions, and not the 3rd?? (I didn't try Y+ because I generally avoid that direction anyways for heavy cuts, since pulling up away from the table isn't exactly optimal) I did adjust all 3 directions to make sure it's climb milling on each one, to keep conditions as similar as possible. Spindle load never tops 30% during this cut. Matsuura has been out, and they checked the ball screws, and pre-load bearings and they say everything looks good.
The part is held on an Orange Vise Tombstone, with small dovetail grooves cut into the stock, which are engaged by large talon grips in the vise jaws. Because of the fact that cuts work in 2 directions, I'm inclined to believe that the tooling, cutting parameters, workholding, and spindle are not the problem. Matsuura is coming in, again to check it out. Does anyone else have any input as to what we could look for to resolve this issue? It's been going on for awhile now, and I'm tired of working around it!
Thanks for any input!!
I was able to adjust my parameters, and change my toolpath to avoid X+ cutting, but this is a brand new machine. Why is it able to do it in 2 directions, and not the 3rd?? (I didn't try Y+ because I generally avoid that direction anyways for heavy cuts, since pulling up away from the table isn't exactly optimal) I did adjust all 3 directions to make sure it's climb milling on each one, to keep conditions as similar as possible. Spindle load never tops 30% during this cut. Matsuura has been out, and they checked the ball screws, and pre-load bearings and they say everything looks good.
The part is held on an Orange Vise Tombstone, with small dovetail grooves cut into the stock, which are engaged by large talon grips in the vise jaws. Because of the fact that cuts work in 2 directions, I'm inclined to believe that the tooling, cutting parameters, workholding, and spindle are not the problem. Matsuura is coming in, again to check it out. Does anyone else have any input as to what we could look for to resolve this issue? It's been going on for awhile now, and I'm tired of working around it!
Thanks for any input!!