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Abstract

Photochemical machining (PCM), also known as chemical blanking, is a metal-etching process that uses a photoresist to define the locations where the metal will be etched. This article describes the major steps used in the PCM process, namely, the preparation of the phototool, selection of the metal, preparation of the workpiece, masking with photoresists, etching, and stripping and inspection. The article reviews various design considerations for the PCM process. These include dimensional limitations, tolerances, and edge quality. The article also discusses the advantages, disadvantages, and applications of the PCM process.

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Howard Friedman, 1989. "Photochemical Machining", Machining

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