Accession Number:

AD0680561

Title:

CHEMICAL MILLING (DEEP CONTOUR ETCHING),

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1968-05-20

Pagination or Media Count:

14.0

Abstract:

For the shaping of parts, instead of mechanical removing of material to obtain a given form there is described a method of etching the material away with chemicals. There are four operations involved in this process. The material not to be removed is protected by paints and varnishes, preferably chlorinated-polyvinyl-chloride lacquers and enamels. Adhesive tapes and rubber are also used. The surface has to be prepared beforehand. Not more than 24 hours should elapse between the applying of these protections and the etching work. Weakening and warping is avoided by using chemicals instead of machining. Extensive tables are attached giving directions for the preparing and applying the coatings to protect material not to be removed and for removing the coating afterwards. Author

Subject Categories:

  • Fabrication Metallurgy
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE