METHOD OF MULTI-PASS DRAWING BY ELASTIC MEDIUM Russian patent published in 2004 - IPC

Abstract RU 2223835 C1

FIELD: plastic metal working; cold stamping; drawing by elastic medium; manufacture of parts from flat blanks. SUBSTANCE: drawing is performed by means of elastic punch into rigid die. At first pass, elastic insert is placed in recess of die which is difficult-to-access for flow of metal; this elastic insert has shape in plan similar to shape of recess of die at height not exceeding 1.5 of depth of cavity being molded. EFFECT: improved quality of parts. 2 dwg

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RU 2 223 835 C1

Authors

Tomilov M.F.

Tomilov F.Kh.

Shagunov A.V.

Popov S.P.

Dates

2004-02-20Published

2002-06-19Filed