Electro chemical machining methods

Details Electro chemical machining methods Electro chemical machining methods

1984-01-24

1984-08-28

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041297, B23P 100

Patent

active

044683049

ABSTRACT:
Workpieces which are electrochemically machined, are exposed to corrosion and stray attack by the electrolyte, over surfaces which are not required to be machined. The invention provides a cowl 22 around the workpiece 10 and its fixture 12, a space 24 being provided at the plane of the interface between parts to be machined and parts not to be machined. De-ionized water is pumped into the interior of cowl 22, at a pressure just sufficient to prevent electrolyte entering gap 24, thus protecting the necessary workpiece portions and the apparatus.

REFERENCES:
patent: 3075903 (1963-01-01), Costa et al.
patent: 3371022 (1968-02-01), Inoue
patent: 3399125 (1968-08-01), Mikoshiba et al.
patent: 3551310 (1970-12-01), Inoue
patent: 3565775 (1971-02-01), Brouchet et al.

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