Method of making a cast iron sealing ring

Details Method of making a cast iron sealing ring Method of making a cast iron sealing ring

1982-11-12

1984-04-10

Crane, Daniel C.

Metal deforming

By shot-blasting

29 90A, 291566, 51332, 51419, B21D 3106

Patent

active

044413491

ABSTRACT:
A method of providing a cold-worked sealing surface on the annular face of an annular seal ring is disclosed. The seal ring is mounted in a rotatable holder with the annular face exposed. While the holder is rotated, a work tool with a plurality of shot-impregnated flaps is also rotated. The axis of rotation of the work tool and holder are displaced 90.degree.. During rotation, the holder and flaps are placed in interfering relationship so that the annular face is cold-worked by the shot-impregnated flaps. The opposite annular face of the seal ring can be worked in the same manner.

REFERENCES:
patent: 955471 (1910-04-01), Motz
patent: 1116776 (1914-11-01), Wilcox
patent: 2968086 (1961-01-01), Fuchs
patent: 3834200 (1974-09-01), Winter
patent: 3857750 (1974-12-01), Winter et al.
patent: 4167864 (1979-09-01), Taipale

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