MANDREL FOR COLD PILGER ROLLING Russian patent published in 2008 - IPC B21B25/00

Abstract RU 2333053 C1

FIELD: technological processes.

SUBSTANCE: mandrel contains working section, detachable tip with resilient elastic bushing and threaded tailpiece. Mandrel is equipped with insert with groove installed in its threaded tailpiece. Collet grip of billet is installed in groove at axis that is fixed perpendicularly to the axis of mandrel. The front end of insert is arranged with blind threaded hole for its fixing to mandrel, and the back end is provided with threaded tailpiece for its fixing with rod.

EFFECT: invention allows to provide stable turn of short billets and pipes produced from them during the whole process of cold pilger rolling.

2 dwg

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RU 2 333 053 C1

Authors

Esakov Aleksandr Vladimirovich

Levanovich Sergej Nikolaevich

Dates

2008-09-10—Published

2006-11-07—Filed