METHOD OF BENDING П-SHAPED PARTS Russian patent published in 1997 - IPC

Abstract RU 2086328 C1

FIELD: plastic metal working, namely, sheet metal bending taking into account springy properties. SUBSTANCE: in order to compensate springiness central part of blank is pressed down, end portions of blanks are freely bent with folding and they are drawn to die. At step of free bending end portions of blank are folded by edges of punch and die when spacing between punch and die is equal to triple length of development of radius portion of part. EFFECT: enhanced efficiency. 1 dwg

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RU 2 086 328 C1

Authors

Vdovin S.I.

Zherdov V.A.

Semin S.V.

Dates

1997-08-10—Published

1995-03-23—Filed