Electrochemical machining process

Details Electrochemical machining process Electrochemical machining process

1990-11-13

1992-06-16

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041295, 20412955, 2041297, 20412925, B23H 304, B23H 310, B23H 900

Patent

active

051222426

ABSTRACT:
An electrochemical machining process for the production of integrally stiffened shell and plate structures. The process applies to such structures as isogrid, waffle, ring stiffened and stringer stiffened structures. In these structures, secondary rib stiffening patterns are generated and shaped by inducing protrustions at selectively positioned electrolyte feeder orifices in electrode tools. Fillets and blending radii between ribs and skins as well as the thickness and width variations of the skins and ribs are controlled to enhance structural performance through electrode tool shaping, and control of electrolyte flow, applied voltage, electrolyte pressure, and electrode oscillation.

REFERENCES:
patent: 3058895 (1962-10-01), Williams
patent: 3188284 (1965-06-01), Flinn et al.
patent: 3403085 (1968-09-01), Berger et al.
patent: 3740519 (1973-06-01), O'Connor
patent: 3849271 (1974-11-01), Joslin
patent: 4459190 (1984-07-01), Inoue
patent: 4767903 (1988-08-01), Sciaroni
patent: 4980533 (1990-12-01), Rabian

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