Bigtoy302
Cast Iron
- Joined
- Jul 31, 2011
- Location
- Eugene, OR
So running some bigger parts lately and am now getting some weird fretting on my tool holders. It's only one little spot on the side and the full face. (dual contact)
Cut was aggressive but still not maxing the Brother out. Nikken SK16 dual contact with a 3/8" x 1" long Diamondback Rougher. .875" Deep, .150" stepover, 300IPM, 16k RPM. I even cut the stepover back to .100" with a different holder and still the same fretting. I had a few more tool holders fret the same but not as bad that weren't pushed as hard on the same part.
Only thing I can think of is the holder is ground wrong making too much face contact and not enough taper. Nikken is NOT licensed by Big Kaiser for Big plus.
Side note. Why is all the licensed Big plus stuff such long gauge length? Sidelocks with 2.5" GL or 2" for a facemill. That's a lot on a 30 taper. Rego stuff is 70mm and $$$$
Cut was aggressive but still not maxing the Brother out. Nikken SK16 dual contact with a 3/8" x 1" long Diamondback Rougher. .875" Deep, .150" stepover, 300IPM, 16k RPM. I even cut the stepover back to .100" with a different holder and still the same fretting. I had a few more tool holders fret the same but not as bad that weren't pushed as hard on the same part.
Only thing I can think of is the holder is ground wrong making too much face contact and not enough taper. Nikken is NOT licensed by Big Kaiser for Big plus.
Side note. Why is all the licensed Big plus stuff such long gauge length? Sidelocks with 2.5" GL or 2" for a facemill. That's a lot on a 30 taper. Rego stuff is 70mm and $$$$