FIELD: plastic metal working, namely production of sleeve type blanks by volume deforming. SUBSTANCE: solid blank is subjected to backward and lateral extrusion by means of die and punch. Lateral extrusion process is realized at final stage of backward extrusion. Excess metal is displaced to burr on end of sleeves being made with the same height. EFFECT: elimination of thickness difference of sleeve wall, lowered metal consumption and reduced number of working operations. 3 dwg
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