СПОСОБ ВОЛОЧЕНИЯ ЗАГОТОВОК: патент на изобретение

Resultado de la investigación: Patent

Resumen

FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy, particularly, to plastic deformation of metal structure. Proposed method comprises multi-pass drawing of cut-to-length tube billet via drawing die orifice and mandrelling tube inner space. In first pass, said cut-to-length tube billet is drawn to make first-pass tube with OD making 97-100% of initial biller ID. Produced first-pass tube is placed inside initial cut-to-length tube billet for drawing to second-pass tube with crosswise sizes of first-pass tube. Produced second-pass tube is placed inside cut-to-length initial tube billet to repeat the cycle.
EFFECT: improved plastic strain.
Título traducido de la contribuciónMETHOD OF DRAWING: patent of invention
Idioma originalRussian
Número de patente2476288
CIPB21J 5/00,B21C 1/24,B82B 3/00
Fecha de introducción27/01/2009
EstadoPublished - 27 feb 2013

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