Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1977-02-14
1978-05-02
Steiner, Arthur J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
291568P, 148127, 291568B, B23P 1504, C21D 950
Patent
active
040875938
ABSTRACT:
An improved drive shaft assembly of uniform high strength, and a method for producing the assembly. The method includes welding a tubular shaft of an alloy steel to an end fitting such as the yoke of a universal joint or a coupling. The welded assembly is then heat treated by bringing the assembly to the austenite phase, uniform throughout the assembly, quenching the assembly in a vertical position, and thereafter tempering the assembly at a temperature uniform throughout to the desired hardness. In this manner, the non-uniform structures in the heat affected weld zone are made homogeneous, thereby producing favorable distribution of strength characteristics and residual stresses throughout the entire assembly.
REFERENCES:
patent: 3470037 (1969-09-01), Suzuki
patent: 3661658 (1972-05-01), Oda et al.
patent: 4001054 (1977-01-01), Makepeace
MacRitchie Innis J.
Phelps Orville F.
Dana Corporation
Emch Richard D.
Leonardi Robert
Pollock Robert E.
Steiner Arthur J.
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