48889

Seeking mechanical table polishing of aluminum [Texas] 

May 27, 2008

I am looking for a jobshop that can mechanically polish a thin aluminum disc roughly 5 inch diameter x 1/64 inch thick using a rotating planetary polisher such as Strasbaugh or Beuhler polishing station.
I require a reflectance of greater than 90% at 365 nm. Surface roughness needs to be somewhere around 10-20 angstrom Ra.
The 6061-T6 aluminum part is PVD coated with a pure aluminum coating, then a protective SiO coating applied after polishing to prevent oxidation. The flatness of the aluminum disc must be maintained to within 25% of the overall thickness. A turn-key shop would be prefered to produce the part, but my primary concern is providing the polishing step.
I would like to do a run of 8-12 parts, 2-3 times/yr

Peter Rhyins
Semiconductor Equipment Repair - Plano, Texas, USA