FIELD: plastic working of metals, namely processes for shaping hollow parts of tubular blanks.
SUBSTANCE: method comprises steps of shaping part of tubular blank by power action upon lateral surface of said blank; before shaping flattening blank imparting to it elliptical cross section having at least one axis equal to diameter of ready part; during shaping process orienting large axis of cross section in direction to zone of intensive plastic deforming. Invention provides concentration of excess volume of material in zone of intensified plastic deformation.
EFFECT: enlarged manufacturing possibilities, enhanced quality of parts and efficiency of method.
6 dwg, 2 ex
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