STATIC PULSE SPINNING TOOL Russian patent published in 2011 - IPC B21D22/16 

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to rotary drawing and shell spinning. proposed tool comprises body with deforming elements to act on billet with interference. Note here that said body represents "П"-like box with lengthwise groove to allow billet to pass there through, while deforming elements represent "П"-like spring-loaded clips tightly fitted into body at opposite walls to provided distance between appropriate pairs equal to billet OD in the beginning of feed in direction perpendicular to billet axis, and, at stroke end, equal to finished part OD. Note also that total interference equal to half the difference between billet and finished part ODs is distributed uniformly between all pairs of deforming elements. Mind that working part of deforming element represents a bush fitted to slide on clip crosspiece.

EFFECT: expanded process performances, higher efficiency and quality.

4 dwg