METHOD FOR SURFACE PLASTIC DEFORMING OF SPHERE BY ROLLING OUT RING Russian patent published in 2005 - IPC

FIELD: plastic metal working, namely surface plastic deforming of non-complete spherical surfaces, for example surfaces of automobile ball pins.

SUBSTANCE: deforming tool is in the form of ring mounted in housing in bearing assembly and having inner spherical surface with radius R_i. Tool embraces worked blank and due to imparting to housing planetary rolling out motion provides movement of contact zone of tool and blank along circle. Inner radius of spherical surface of deforming ring of tool is determined according to given relation. Lengthwise axis of planetary rolling out motion is set by inclination angle α relative to plane normal to blank axis and passing through center of sphere determined according to given expression.

EFFECT: enlarged manufacturing possibilities, lowered cost price, enhanced efficiency, improved quality of product.

3 dwg, 1 ex