APPARATUS FOR FORMING PARTS FROM LESS SIZE SHEET BLANKS Russian patent published in 2001 - IPC

Abstract RU 2164455 C2

FIELD: plastic metal working, namely sheet forming. SUBSTANCE: apparatus for forming parts at expanding sheet blanks of less size includes die and punch with working contours, holders for holding mutually opposite edges of blank. Holders have upper and lower portions with constricted ribs. Working surfaces of punch and die are inclined relative to blank. Holders may be moved together with punch and die in mutually opposite directions. EFFECT: enhanced strength and rigidity of formed parts, increased deformation degree, material economy. 3 dwg

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RU 2 164 455 C2

Authors

Feofanova A.E.

Dates

2001-03-27—Published

1999-02-02—Filed