The Process and Techniques of Manufacturing Replica Mirrors (Cast Epoxy)
Technical research rept.
FRANKFORD ARSENAL PHILADELPHIA PA
Pagination or Media Count:
This report is concerned with improving the techniques of making replica mirrors as reported in The Process and Techniques of Fabricating Replica, F.A. Report PP-T-2520-1 by Robert P. Hogan, Nov. 1967. The process involves the reproduction of a polished mirror surface, in the form of a thin film epoxy casting complete in all details, on an aluminum preform. Double replication, used in this study, is a two stage process whereby an inverse replication of a master mirror surface is cast on a submaster, and is then conversely replicated on an aluminum preform. The epoxy, after proper vacuum coating, becomes the mirror, and the aluminum provides stability, rigidity and strength.
- Fabrication Metallurgy