FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, particularly, to rotary drawing of ogival and conical articles. Billet drawing is carried out at mandrel by, at least, two spinning-rolling rolls arranged displaced relative to each other. In said drawing, front roll deforms the billet by reduction making half the preset amount while rear roll deforms it to preset thickness in continuous deformation zone. Displacement of rolls in vertical plane is defined by enclosed formula.
EFFECT: required quality of inner and outer surface and accuracy of article wall thickness.
1 dwg
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