FIELD: plastic working of metals, possibly manufacture of ball pins of units of transport vehicles and other parts with ball heads.
SUBSTANCE: method comprises steps of cutting off blank; preliminarily upsetting head with cone portion; reducing rod; swaging cone and finally upsetting head at forming diameter of rod for knurling thread; then turning chamfer of rod and forming fillet by cold cross taper rolling process; before such rolling process determining length of rod of ball pin blank according to relation given in description of invention.
EFFECT: enhanced quality of articles, lowered metal consumption.
1 dwg, 1 ex
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