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michael
 
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Default what type of end mill to use?

Grant Erwin wrote:

I have to mill a profile out of 1/8" sheet brass, exact composition
unknown. It isn't very hard, though. This will be entirely edge
milling i.e. milling with the side of the end mill. I very rarely
mill brass and I'm unfamiliar with its machining properties. For
side milling of brass sheet stock should I just use any 4-flute
end mill, or is some special topology highly desirable?

Thanks!

Grant Erwin


Just use a sharp one.g You do know about brass being 'hungry'? If you
have no size restriction, like for inside corner radii, use somehting
fom .187 to .312 diameter. I like standard 3 flute for something like
this, but a 2 or 4 will be fine. Standard helix, and a light spray of
water soluble coolant, though most will say run it dry. The spray will
blow chips away, helps with visuals.

mj