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Finish on materials

 
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franke
Master Poster


Joined: 26 Jun 2004
Posts: 161
Location: Indiana, USA

PostPosted: Sun Jul 04, 2004 10:31 pm    Post subject: Finish on materials Reply with quote

I am looking for information on how I can learn to better my finishes on cnc jobs. currently I am struggling with different materials on our haas sl-10 cnc lathe.

I do machining with 1117,1215,303, and alum.
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John_B
Frequent Poster


Joined: 03 Jul 2004
Posts: 56
Location: Milwaukee, WI USA

PostPosted: Sun Jul 04, 2004 10:32 pm    Post subject: Reply with quote

Tooling application engineers can be a source of direction and they might supply you with some samples to try. Coated grades are NOT always the answer but experimentation can find a solution. For some reason, a grade that the engineer
said worked excellent in another facility, might give worse results than what you are seeing now. And with low carbon, stainless, and non-ferrous materials, several different grades and chip forming geometries may be neccessary.

You might also check to see that the tool tip is a thousanth or two above center. Below center can give poor finishes no matter what insert you use.
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