DRAWING DIE Russian patent published in 1994 - IPC

Abstract RU 2013162 C1

FIELD: drawing parts from sheet material. SUBSTANCE: die has variable-volume accumulating chamber and slide valve hydraulically engageable with clamping unit, and slide valve control mechanism to provide such an operation of die which leads to alternation of drawing with downward travel of female die and flattening corrugations originating in rolling process by clamp in the course of female die stoppage. EFFECT: enhanced operating capabilities. 7 dwg

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RU 2 013 162 C1

Authors

Korotkov A.A.

Bludov V.A.

Al'Bekova N.V.

Dates

1994-05-30—Published

1990-06-05—Filed