| 摘要 |
FIELD: plastic metal working, particular, tools for rotary drawing. SUBSTANCE: roller whose cross-section running through rotary axis is limited by conjugated flat end face, working part with radius of rounding and straight part. Straight part is made in form of truncated cone with cone generator located at angle to axis of roller rotation determined from the relation given in the invention description. EFFECT: higher quality and efficiency in manufacture of conical parts from copper alloys with small radius of rounding at cone vertex |
