Method and apparatus for electrochemical machining

Details Method and apparatus for electrochemical machining Method and apparatus for electrochemical machining

1984-02-03

1985-03-12

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412975, 204224M, 204237, 204273, 204277, 204DIG13, B23P 100, B23P 116, B23P 102

Patent

active

045043701

ABSTRACT:
The disclosure relates to a process and apparatus for the treatment of sodium-nitrate-containing electrolytes during the electrochemical machining of the surfaces of iron-containing workpieces. By adding an oxidizing agent, more particularly ozone, increased production of nitrite in the electrolyte is prevented and, thereby, premature passivation of the surface of the workpiece during the electrochemical metal removal. An apparatus for the oxidation of the electrolyte is comprised of a processing station inserted into the electrolyte circuit, an ozone generator, and a reactor.

REFERENCES:
patent: 3994790 (1976-11-01), Inoue
patent: 4040920 (1977-08-01), Takada et al.
patent: 4153524 (1979-05-01), Roche et al.

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