Fabrication of complex electrodes by photoetching for electrical discharge machining apparatus
Abstract
Abstract A METHOD AND APPARATUS ARE PROVIDED FOR ACCURATELY AND INEXPENSIVELY MAKING TOOLS TO BE USED IN EDM AND IN THE LIKE. PHOTOETCHING TECHNIQUES ARE USED TO FABRICATE BOTH A PRECISE PATTERN OF APERTURES AND ALIGNMENT HOLES IN A THIN METALLIC SHEET TO BE USED AS THE CATHODIC ELECTRODE IN THE EDM PROCESS USED FOR MAKING THE TOOLS. THE PHOTOGRAPHIC TRANSPARENCY MADE FOR PHOTOETCHING MAY BE USED TO FABRICATE MANY IDENTICALLY PATTERNED SHEETS WITH IDENTICALLY LOCATED ALIGNMENT HOLES. THE THIN SHEET PATTERNED ELECTRODES, WHICH MAY BE READILY AND ACCURATELY REPLACED, ARE USED IN THE EDM PROCESS TO FABRICATE INTRICATE TOOLS WHICH ARE HIGHLY PRECISE ALTHOUGH THEIR FABRICATION REQUIRES DEEP EROSION.
Inventors
- 👤 Arthur Appel
- 👤 Edward J Taschler
Bibliographic Details
Claims Analysis
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