Method and apparatus for punching a thin metal tape to provide a

Details Method and apparatus for punching a thin metal tape to provide a Method and apparatus for punching a thin metal tape to provide a

1996-02-01

1999-11-09

Rada, Rinaldi I.

Cutting

Processes

83133, 83140, 83143, 83620, 83176, 839292, 83 19, 72334, 72327, B21D 2802, B26D 100, B26D 706

Patent

active

059792779

ABSTRACT:
A stripper holder for holding a stripper plate conforms with the deformation of a die plate. A pressing force applied to the stripper plate and is greater than an elastic limit of a metal tape to be punched, and less than a pressing deformation or breakage force of the metal tape. The stripper holder may also be flexible, or such that the metal tape is pressed at two different positions for one punching position by two different pressing forces.

REFERENCES:
patent: 1849669 (1932-03-01), Glasner et al.
patent: 3878746 (1975-04-01), Carmeli
patent: 4569263 (1986-02-01), Kravets
patent: 4711115 (1987-12-01), Sukonnik et al.
patent: 4893394 (1990-01-01), Muller
patent: 5054188 (1991-10-01), Sabado
patent: 5074139 (1991-12-01), Elliott
patent: 5105857 (1992-04-01), Ellis
patent: 5295390 (1994-03-01), Hosono

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