EDM Electrodes

Details EDM Electrodes EDM Electrodes

1980-02-06

1983-02-08

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

21914621, 219119, 2041291, 29880, 428569, B23P 108, B23P 104

Patent

active

043731279

ABSTRACT:
A precision molded electrical discharge machining electrode is made by shaping a preform from granules of carbon and granules of a refractory material selected from the group consisting of tungsten, molybdenum, carbides thereof, and stoichiometric and hyperstoichiometric carbides of the other elements of the groups IVB, VB, and VIB of the Periodic Table of the Elements, the carbon and refractory granules being interconnected in the form of a skeleton at their contiguous points of contact, and infiltrating the preform with copper, silver, or alloys containing those metals.

REFERENCES:
patent: 2289708 (1942-07-01), Jackson
patent: 3235346 (1966-02-01), Hucke
patent: 3241949 (1966-03-01), Kunda
patent: 3745296 (1973-07-01), Shinopulos
patent: 3929476 (1975-12-01), Kirby, Jr. et al.
patent: 4153755 (1979-05-01), Rothkegel et al.

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