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

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to rotary drawing of cylindrical shells, hollow articles and, to static pulse spinning. Spinning tool is fed in crosswise direction relative to revolving workpiece. Additionally said spinning tool is fed in lengthwise direction after each dual return-cross stroke. Note here that spinning tool comprises body with spinning elements to act on workpiece with interference. Note here that said body represents "П"-like box with lengthwise slot for workpiece to pass therein unobstructed. Note that spinning elements represent "П"-like spring clips rigidly fitted in the body on opposite walls. Distance between mating pairs at the start of cross feed in direction perpendicular to workpiece lengthwise axis is equal to workpiece OD, while, at the stroke end, is equals to OD of finished part. Note also that total interference equal to half the difference between said ODs is distributed among all pairs of spinning elements. Mind that a section of spinning tool is made up of sleeve sliding on clip crossarm.

EFFECT: expanded processing performances, higher quality and efficiency.

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