Hi All,
I have a nice little lathe called called a Southbend Magnaturn. It's got a 2000 rpm spindle on it and it's previous owner used to cut just about anything with it.
I have done plastic, copper, brass and aluminum on it without a problem. However, I need to do some stainless steel parts and I have no idea where to start with for feeds and speeds.
My part is 1.375" diameter, and I'm cutting part of it down to 1" and putting 8 tpi threads into it.
If someone could give me some safe starting points, I'd really appreciate it.
I'd like to know:
- Suggested RPM
- Suggested starting cut per rev (ie. .050, .040, etc...)
- Suggested DOC per pass
I'm only using three tools, a rougher, a finishing tool and a threading tool.
I also need to do some boring on the other side of the part.
Thanks much,
Wade
PS. If anyone has a good resource for a lathe feed and speed calculator, I'd really appreciate it.