"Robert Salasidis" wrote in message
...
On Tue, 15 Feb 2005 23:28:00 -0500, "Kathy"
wrote:

My understanding is that all ferrous metals are better with sharp
inserts, and positive rake (which I am doing)

Howeever I would like to improve the surface finish further, and
that's why I would like to know if a wiper inserty will help, or in
the case of brass would amke no difference I have not tried is as the
cutter I am using uses APCR1003 inserts, and no wiper is available for
that cutter body - so I would need to get a different cutter, new
sharp inserts and 10 wiper inserts (sold only in that quantity) - all
rather expensive - so that is why I am looking for anybody that has
been down this road before.

Thanks again


"Robert Salasidis" wrote in message
.. .
Is it worthwhile to use a wiper insert to improve the surface finish
of brass when doing a facing operation.

I have a 3" face mill, and would like to get the best face finish
possible. I am using sharp, positive rake Iscar inserts currently, but
wonder whether adding a single wiper to teh cutter would result in a
better finish.

If the answer is yes, what is the incremental finish quality one can
expect (some experiences would be nice - ie Ra finish before and
after)

I guess you already tried taking half the inserts out....
Isn't brass better suited for a negative rake and a real sharp edge?



http://www.dapra.com/promos/closeouts/45shell.htm

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SVL