METHOD FOR FORGING FORMING AND APPARATUS FOR SIDE WHEEL FORGING FORMING OF CONSTANT VELOCITY JOINT

摘要

a number of punch pieces (11) having a hemisphere protrusion (111) at an end line and another protrusion (113) with an inclined lower part side (115); a punch piece slide member (13) coupled with a number of inclined grooves (131); a stem (15) with a spherical protrusion (151); an inner curve (171); an outer case (17); a lower part slope (115); a number of elastic members (19); and a lower part die (31).