[SEL] OT lathe tooling for copper facing.

Fuller & Johnson fuller_johnson at yahoo.com
Fri Jan 12 09:22:04 PST 2007


Lots of time if you call the insert manufacturer and tell them what you are doing they will reccomend the proper insert plus speed/feed.  You might want to pick a couple companies and see what they have to say.

Curt <curt at imc-group.com> wrote:  Fellow machinists, a lathe tooling question for you.....

When using carbide insert tool holders, how does one determine when to 
use negative rake vs. positive rake tool holders?
Are triangled inserts the best for facing? Or would round be better? Or 
some other shape?

MSC doesn't have a lot of small clamp style indexable tools. The shank 
will need to be 7/16 square with an overall length of 3".

Will be facing copper samples in our lab here at work. Want the 
smoothest, brightest surface possible to lessen hand polishing after 
turning.....
Curt Holland
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