clayton
Aluminum
- Joined
- Aug 19, 2011
- Location
- Houston Texas
I’ve got a 2009 Haas VF2 7500 rpm coolant induced spindle. I have some weird issues with surfacing material. I machine a lot of aluminum but have noticed it on bronze and various steels.
I recently had a Sumitomo rep come by and I tried a 45 deg angle insert 3” tool for facing material. We ran a wiper and got a pretty good finish. But they suggested I try their 90 insert 3” tool cause it is known to produce a better finish. Tried and never could get it to face clean. Always had a fish scale look. The faster feed rate it improved but was still there. Inserts that were PCD sharp or Diamond.
I originally inquired about their HF cutters that are designed specific for aluminum, they leave no burrs and have basically a mirror finish. They are extremely expensive compared to traditional model cutters by any brand. They decided to send over one since that’s what I originally wanted to try. It wasn’t producing results like it should. So that’s the point I decided to have a Haas tech come inspect the machine.
We checked the draw bar pressure, it was 1700 (spec range is 1600-2300) they said no way they would change that out. Checked the spindle bearing preload. Checked backlash in all axis. Spindle taper looked great. My new Maritool holders have no bad wear showing. Only about two years of use on them. Machine is solid and level.
We’ve tried facing coolant induced, normal coolant nozzle, and air. No real change. Coolant induced seemed the best. I’m scratching my head. Haas tech can’t find anything wrong with the machine.
Has anyone had anything like this happen before? Tried various DOC and Feeds all starting with the recommended parameters for each tool.
I recently had a Sumitomo rep come by and I tried a 45 deg angle insert 3” tool for facing material. We ran a wiper and got a pretty good finish. But they suggested I try their 90 insert 3” tool cause it is known to produce a better finish. Tried and never could get it to face clean. Always had a fish scale look. The faster feed rate it improved but was still there. Inserts that were PCD sharp or Diamond.
I originally inquired about their HF cutters that are designed specific for aluminum, they leave no burrs and have basically a mirror finish. They are extremely expensive compared to traditional model cutters by any brand. They decided to send over one since that’s what I originally wanted to try. It wasn’t producing results like it should. So that’s the point I decided to have a Haas tech come inspect the machine.
We checked the draw bar pressure, it was 1700 (spec range is 1600-2300) they said no way they would change that out. Checked the spindle bearing preload. Checked backlash in all axis. Spindle taper looked great. My new Maritool holders have no bad wear showing. Only about two years of use on them. Machine is solid and level.
We’ve tried facing coolant induced, normal coolant nozzle, and air. No real change. Coolant induced seemed the best. I’m scratching my head. Haas tech can’t find anything wrong with the machine.
Has anyone had anything like this happen before? Tried various DOC and Feeds all starting with the recommended parameters for each tool.