Hi. I'm making a turbo manifold from 316L sch10 2" butt weld fittings. can someone tell me what they use to make the large holes in the runner where the wastegate runners would connect?

cheers

 

Mill,wet mill,hole saw,lots of lube, and slow speed. Cutting stainless without plasma,waterjet is a bitch. Just take your time and use lots of lube.

 

Thanks for the help.

 

Jancy Engineering

One of these locked in a mill or a drill press (if you can fit it the shank in the chuck) as mentioned above low speed 300-500 rpm and a bunch of lube.

 

Keep the infeed pressure on the bit anytime it is touching the stainless so it is cutting.

If you run the bit over the stainless surface without enough pressure to cut it work hardens the stainless and it becomes a real chore to complete the cut.

Sharp bit, low speed, continuous pressure, keep it cooled.

 

thanks guys. thats what i did wrong with the hole saw. didn't keep the pressure on it. il try again.