METHOD FOR BENDING SHEET MATERIAL Russian patent published in 1999 - IPC

Abstract RU 2132758 C1

FIELD: plastic metal working, namely production of parts from sheet materials. SUBSTANCE: sheet blank is placed on rigid die. Two flat plates are preliminarily arranged between die and blank in bending zone at both sides of die. Gasket bent according to punch shape is arranged between punch and blank. High-strength material is used for making plates and gasket. Then blank is bent in die by means of rigid punch. EFFECT: enhanced quality of part surface, increased useful life of punch. 2 dwg, 1 ex

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RU 2 132 758 C1

Authors

Kipin V.G.

Mar'In B.N.

Mel'Nikov E.N.

Ivanov Ju.L.

Murav'Ev V.I.

Dates

1999-07-10—Published

1998-02-27—Filed