METHOD OF PRODUCING BIMETAL MULTIPLE PLY ROD AND WIRE ARTICLES Russian patent published in 2014 - IPC B21C1/00 

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used for production of bimetal multiple ply rod and wore articles. Proposed method comprises forming hook on article with sharpened and conical sections and drawing through tapered channel of monolithic drawing die. Drawing die working channel generatrix inclination to drawing axis is specified by mathematical relationship with allowance for factors including the material outer layer resistance to deformation, holdback tension strain, cross-section area ratio of layers.

EFFECT: lower drawing tension, power saving.