Process for forming hardened contact surfaces in a universal bal

Details Process for forming hardened contact surfaces in a universal bal Process for forming hardened contact surfaces in a universal bal

1984-10-18

1988-05-03

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148902, 148906, C21D 940

Patent

active

047417854

ABSTRACT:
In the manufacture of a universal joint which includes an inner and outer joint member, a cage, and torque-transmitting balls supported in the cage and received in ball tracks formed in the outer face of the inner joint member and the inner face of the outer joint member, contact faces along which the balls run in the tracks and in contact with the cage are partially hardened to a relatively great depth taken relative to the wall thickness of the workpiece by means of a shaped inductor. The contact faces between the cage and both the inner and outer joint members, respectively, are also formed with a wear-resistant layer which is thin taken relative to the wall thickness of the workpiece.

REFERENCES:
patent: 2414141 (1947-01-01), Denneen et al.
patent: 3982840 (1976-09-01), Grosseau
Metals Handbook, vol. 4, 9th ed., pp. 191, 507, 518, 11/81, American Soc. for Metals, Metals Park, Ohio.

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