Method of operating electrochemical machine tool

Details Method of operating electrochemical machine tool Method of operating electrochemical machine tool

1981-10-14

1983-06-07

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412955, 2041296, 2041297, B23P 100, B23P 116

Patent

active

043870090

ABSTRACT:
Multiple hole drilling by the electro-chemical process, in which individual jets of electrolyte impinge upon a workpiece, presents problems in assessment of hole depth reached and/or of jet deflection through jet orifice blockage. The invention provides a device which looks for the corona at the head of each jet. If the corona is present, the device generates and electrical signal which inhibits the actuation of a further device the function of which is to remove the jet, the corona of which has extinguished. Device also senses the displacement of the corona from a datum and in response, initiates switch off the machine tool.

REFERENCES:
patent: 3403084 (1968-09-01), Andrews
patent: 3509304 (1970-04-01), Moore
patent: 3810829 (1974-05-01), Fletcher
patent: 3827963 (1974-08-01), Callahan
patent: 3990959 (1976-11-01), Payne et al.
patent: 4289947 (1981-09-01), Inoue

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