Method of preparing a leaf spring

Details Method of preparing a leaf spring Method of preparing a leaf spring

1989-09-05

1992-03-31

Yee, Deborah

Metal treatment

Compositions

Heat treating

148 12R, 148908, C21D 800

Patent

active

051004828

ABSTRACT:
A method of preparing a leaf spring having a heating step in which a raw material of a leaf spring is heated to austenite range temperature, a rolling step in which the above heated material is formed to a desirable shape, a working step in which the above rolling material is cut to a fixed length to form a chip hole, a bolt hole or the like, and a cooling step in which a camber is given to the above working material to cool to hardening in his state.
Other five modified methods are also described.

REFERENCES:
patent: 3345727 (1967-10-01), Komarnitsky
patent: 3668917 (1972-06-01), Komatsu et al.
patent: 4193824 (1980-03-01), Egorov et al.

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