METHOD OF PRODUCING SOLID BIMETAL ARTICLES Russian patent published in 2017 - IPC B21C23/22 B23K20/02 

FIELD: metallurgy; technological processes.

SUBSTANCE: invention relates to metal forming. Method of producing solid bimetal articles involves producing a ready-made billet consisting of a core billet and a shell billet with a bottom part and further combined hot forming of the ready-made billet in a female die with application of force to its rear end. Herewith preliminarily determined are diametric sizes of the shell billet and the core billet from the condition of the layers drawing equality during pressing. Test forming of the ready-made billet is performed. Sample is cut out from the middle part of the formed bimetal article, on which a polished cross section is prepared. Determined is the core actual diameter, after which the initial core billet diameter is corrected, the value of which is regulated by a mathematical expression.

EFFECT: technical result is producing solid bimetal articles with required geometrical sizes of layers at the minimal amount of iterations.

1 cl, 1 dwg, 2 tbl