Re: ATM wrinkle finish

[mjc5 <mjc5@psu.edu>]

	Hi Dave. When sandblasting aluminum or any metal, there is a shot
peening effect which will cause unequal stress on the two sides of the
metal. I've found this out to my dismay when sandblasting flat panels.
8^0 Have you found any effects on tubing? I'm not sure if it will warp
the tube, or perhaps make it stronger.

	- Mike -

"David H. Bevel" wrote:
> 
> Hi,
> 
> I use a hand sandblaster. Looks kind of like a Buck Rogers energy weapon. A
> gallon can
> of aluminum oxide, not the kind for mirror grinding but I suppose it would
> work,
> just a waste of good grinding grit.,  and  an air compressor.  I have used a
> $100.00
> portable electric air compressor that works ok but barely. Be sure to wear
> gloves
> if you are holding the part in your hand, face mask, and a good respirator.
> You sure don't want that stuff in your eyes or lungs.  The sand blaster and
> oxide I
> purchased at a Northern Tools, the rest Home Depot.
> 
> Dave