FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy and can be used in pressing cylindrical billets to produce semi-finished products of smaller cross-section. Workpiece is loaded into the container, a press force is applied to fill the container with the workpiece metal and the workpiece is extruded through the matrix hole to produce a moulded article. Prior to extrusion, blank front end is processed. For this, matrix is replaced by striker with conical part of working surface. Top of the cone is directed towards the workpiece. Press force is applied until conical surface is forced into workpiece body. Then the matrix is installed and the workpiece is extruded through it.
EFFECT: elimination of metal section with reduced level of plastic deformation in moulded article.
1 cl, 10 dwg
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