Stainless Steel Bushing

[Wongster]

Managed to make 5 pieces altogether. Progress is slow as I still go back to office despite being on medical leave.

For the last 2 pieces, I had difficult parting off. Hacksaw was used to cut off the job from the stock. This didn't happen for the first 3 pieces. Parting started ok till I'm 2/3 way through. It stopped cutting after that. Is this work hardening that was spoken about? I went at 330 rpm and feed rather aggressively. Lots of cutting fluid was used.

This is the Glanze parting tool I'm using, bought from Chronos. Brand new when I made the first piece of the bushing. Total 5 small cut old in age...



Anyone can shed some light?

Regards,
Wong