MOLD TO CAST LEDGES IN TUBULAR PART Russian patent published in 2010 - IPC B21D22/02

Abstract RU 2389578 C1

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used in producing parts from tubular workpieces. Mold male die has cavities. Note that diametre of circle circumscribed about said cavities equals the inscribed diametre of tubular part. Note also that crossheads that form cavities have working surface with radius smaller than that of male mold recess radius by minimum wall thickness of tubular part. Mind that male mold cavity opening angle exceeds corresponding appropriate crosshead angle.

EFFECT: higher accuracy.

5 dwg

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RU 2 389 578 C1

Authors

Chinnov Aleksandr Vladimirovich

Lipukhin Nikolaj Aleksandrovich

Dates

2010-05-20—Published

2008-10-14—Filed