METHOD FOR WORKING NON-WHOLLY SPHERICAL SURFACE OF HEAD OF BALL PIN Russian patent published in 2003 - IPC

FIELD: plastic metal working, namely subjecting parts to surface plastic deforming. SUBSTANCE: method comprises steps of rolling out non-wholly spherical head of ball pin by means of deforming bodies performing planetary rotation in plane shifted relative to center of non-wholly spherical head of ball pin; rotating the last around its lengthwise axis and additionally turning it in plane passing through lengthwise axis of pin normally relative to rotation plane of deforming bodies; at initial stage of rolling out process rotating ball pin around its axis at constant angular velocity during time period determined from relation between number of full revolutions of ball pin around its axis and angular velocity of ball pin rotation around its axis; at rotation of ball pin around its axis simultaneously additionally rotating it at constant angular velocity. EFFECT: enhanced quality of worked non-wholly spherical head of ball pin, lowered time period of working. 1 dwg