Method and apparatus for cold extruding universal seal crosspiec

Details Method and apparatus for cold extruding universal seal crosspiec Method and apparatus for cold extruding universal seal crosspiec

1992-02-10

1992-12-29

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

B21K 1300

Patent

active

051741474

ABSTRACT:
A spider or cross for a universal joint is manufactured by first forging the basic configuration of the cross and thereafter extruding the trunnions into their final configuration. The component is initially hot or warm forged into its basic configuration including a central body and a plurality of trunnions. Thereafter, the trunnions are simultaneously extruded into their final configuration eliminating machining and a loss of materials. As a result, the grain flow of the component is not disrupted for a more reliable part.

REFERENCES:
patent: 469784 (1892-03-01), Hall
patent: 1857708 (1932-05-01), Benedetto
patent: 3096579 (1963-07-01), Waller
patent: 4580431 (1986-04-01), Oku et al.

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