Electrical machining fluid and method utilizing the same

Details Electrical machining fluid and method utilizing the same Electrical machining fluid and method utilizing the same

1982-11-01

1987-02-10

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

252573, 556445, B23H 108, H01B 322, H01B 346

Patent

active

046424440

ABSTRACT:
A novel, nonflammable, high-performance and economical machining fluid of the invention contains an organic or semi-organic substance other than hydrocarbons at a proportion of 0.1 to 5% by weight and the balance essentially water. The machining fluid may optionally contain further at least one hydrocarbon oil such as kerosene and transformer oil. The substance should contain at least one element which upon discharge decomposition of the machining fluid in the gap produces an oxide of the element for example, silicon oxide or titanium oxide. As preferred but exemplary, the substance may be water-soluble silicone oil which should preferably be a polyether denaturated silicone oil. The machining fluid is preferably used in a machining method of the open-to-air-gap mode.

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"Choice of EDM Tooling", by Carter et al., EDM Digest, Jan./Feb. 1981, pp. 27-33, vol. 111, No. 1.

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