Method and apparatus for creating an electroform having a roughened surface

摘要

An electroforming process and apparatus is disclosed for forming an electroform (40) with a roughened surface. The electroform with a roughened surface is formed by plating a reusable mandrel (50) with a roughened surface (20). The reusable mandrel surface is roughened using a sandblasting device. In one embodiment, the surface of the reusable mandrel is coated with a dual catalyzed non-self regulating crack free chromium deposit and a surface preparation to maintain the roughened surface. An alternate embodiment of the reusable mandrel utilizes a stainless steel mandrel without the chromium deposit on the surface.