Method of blanking metal foil on piezoelectric actuator operated

Details Method of blanking metal foil on piezoelectric actuator operated Method of blanking metal foil on piezoelectric actuator operated

1992-11-17

1994-06-14

Seidel, Richard K.

Cutting

Processes

With subsequent handling

83 13, 83575, 83623, 83685, B26F 300

Patent

active

053200136

ABSTRACT:
In blanking a metal foil on a press comprising a pair of dies, a pair of punches, and a pair of piezoelectric actuators for driving the punches with are all arranged above and below the metal foil, the punches are vertically vibrated by the piezoelectric actuators, so that, while the punches being held abutted against both surfaces of the metal foil clamped between the dies, a half blanking operation and a reverse blanking operation are carried out alternately, whereby the metal foil is cut along the shearing surface through low cyclic fatigue without formation of burrs.

REFERENCES:
patent: 3700150 (1972-10-01), Cheney
patent: 3878746 (1975-04-01), Carmelli
patent: 4362078 (1982-12-01), Ohnishi et al.
patent: 4477537 (1984-10-01), Blase et al.
patent: 5095725 (1992-03-01), Wada et al.
patent: 5163223 (1992-11-01), Wurster
patent: 5205147 (1993-04-01), Wada et al.

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