Manufacture of torsion bars

Details Manufacture of torsion bars Manufacture of torsion bars

1977-05-03

1978-05-30

Stallard, W.

Metal treatment

Compositions

Heat treating

148 124, 148125, C21D 902

Patent

active

040921808

ABSTRACT:
A method of making high performance torsion bars from austenitic stainless steels which comprises the steps of fabricating a blank complete with splined ends and torsion working said blank below the Md temperature of the material to a stress value above 80-90% of its ultimate. Prior working may be done in tension at below the Md temperature, and subsequent precipitation hardening may be added to the basic process.

REFERENCES:
patent: 3473973 (1969-10-01), Maekawa et al.
patent: 3615921 (1971-10-01), Delgrosso
patent: 3917492 (1975-11-01), Backman et al.

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