Is that polishing or cutting.  As I understand it you want to do the rough
cuts with fast RPM then do final polish with lower RPM.

At least thats what I understand

Ken 
5358
59 Traveler

At 08:05 AM 1/31/01 -0800, you wrote:
>Hi all - 
>
>polishing "really" happens at high rpms - 2800 to 3200
>RPM's.  below that what you are really doing is
>"smoothing" rather than brightening..  
>
>this can be a good thing because one of the most
>common problems you'll see in a polish job is
>cloudiness... what that means is that the aluminum has
>poor color - it should appear deep and transparent -
>that is what is meant by color.
>
>On the other hand, reflectivity, though it is somewhat
>affected by color, happens at high RPM.
>
>I polished a panel with burnishing bars and a die
>grinder once.  the "color" wasn't even because the
>buffing wheel was only 1/4" wide.  But, since the
>wheel was spinning at somewhere between 15,000 and
>28,000 RPM, the panel was so reflective it "halo'd" at
>night time - it literally reflected enough light to
>create a halo of reflected light around itself.
>
>just notes all, thanks.
>
>Toby  
>--- Robert / Susan  Harper <[EMAIL PROTECTED]> wrote:
>> 
>> >Thanks for the reply.  Question?  About what speed
>> did you like when
>> >polishing?  Dean
>> >
>> 
>> Just a guess since pressure slows the rpm's, but I'd
>> say 1000-1500 range most of the time (using 7" Milw.
>> var. spd. polisher).
>> 
>> BH62GT/SC
>> 
>> 
>
>
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