Controlled metal removal by parallel-to-face electrochemical mac

Details Controlled metal removal by parallel-to-face electrochemical mac Controlled metal removal by parallel-to-face electrochemical mac

1984-07-20

1985-09-17

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204224M, B23P 102, B23P 112

Patent

active

045419094

ABSTRACT:
This is an electrochemical machining process for removing high spots from the surface of reactive metal workpieces. The process utilizes measuring of the workpiece to locate high spots (imperfections), then positioning a wedge-shaped, zero-angle electrochemical machining tool with its center line aligned with the center of the high spot, and then moving the tool parallel to the workpiece surface across the high spot at a product of current times inverse of speed essentially proportional to the amount of material to be removed. Preferably, the speed of tool movement is maintained essentially constant and the current is varied proportionally to the amount of material along the center line of the high spot which is to be removed.

REFERENCES:
patent: 3445372 (1969-05-01), Fromson
patent: 3489671 (1970-01-01), Stark et al.
patent: 3625853 (1971-12-01), Melvin et al.
patent: 4101405 (1978-07-01), Inoue
patent: 4170528 (1979-10-01), Mathews
patent: 4439660 (1984-03-01), Inoue
patent: 4456516 (1984-06-01), Schaffner

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