Method for the manufacture of a shaping mask for an electroerosi

Details Method for the manufacture of a shaping mask for an electroerosi Method for the manufacture of a shaping mask for an electroerosi

1977-03-16

1979-08-28

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204 6, C25D 110, C25D 120, C25D 122

Patent

active

041660110

ABSTRACT:
A method of making a shaping mask from copper or copper alloy for electrical machining tools which comprises applying to a steel matrix or form, a thin conductive coating of a neutral material, especially a hard chromium, passivating this layer and applying into the copper or copper alloy the galvanic deposition until the electro deposited layer lifts autogenously from the layer intact.

REFERENCES:
patent: 2879209 (1959-03-01), Fialkoff
patent: 3230163 (1966-01-01), Dreyfus
patent: 3574075 (1971-04-01), Eccles
patent: 3689729 (1972-09-01), Neward

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