Rapid_Tech
Aluminum
- Joined
- Oct 27, 2014
- Location
- Toronto
Gentlemen,
I'm looking for advice on cylindrical grinding 4140 shafts. We make shafts ranging from about 1.5" diameter X 18" long up to 6" diameter and 90" long. Material is sometimes pre-hardened (~30Rc) but most often induction hardened (~55Rc).
Our two machines are TOS, one is 2 meter capacity and the other is 3 meter. Wheels are 24" (I think, but around there) X 3" wide. Tolerances are typically +/- .0005". Finish isn't too important, sizes are the most critical, mainly for bearings.
What wheel would you recommend, brand and type?
Coolant? Right now we use Cimcool Cimstar 40B
Any tips or tricks you might have for grinding
Thanks,
Peter
I'm looking for advice on cylindrical grinding 4140 shafts. We make shafts ranging from about 1.5" diameter X 18" long up to 6" diameter and 90" long. Material is sometimes pre-hardened (~30Rc) but most often induction hardened (~55Rc).
Our two machines are TOS, one is 2 meter capacity and the other is 3 meter. Wheels are 24" (I think, but around there) X 3" wide. Tolerances are typically +/- .0005". Finish isn't too important, sizes are the most critical, mainly for bearings.
What wheel would you recommend, brand and type?
Coolant? Right now we use Cimcool Cimstar 40B
Any tips or tricks you might have for grinding
Thanks,
Peter