method of manufacture of bimetallic articles made of sheet blanks

摘要

A method of manufacture of bimetallic articles made of sheet blanks, in which sheet blanks of different materials are installed on two molds in-series vertically coaxially located with a clearance and are drawn with thinning of walls, and on the external surface of upper billet after the first drawing longitudinal grooves are formed by tool located between molds by method of cutting.