Method of forming a taper leaf

Details Method of forming a taper leaf Method of forming a taper leaf

1978-11-02

1980-08-12

Larson, Lowell A.

Metal deforming

Process

'rolling'

29173, 72240, B21B 142

Patent

active

042166675

ABSTRACT:
A method of forming a taper leaf for use in a laminated spring wherein pre-tapering work is first performed by which a terminal portion of a sheet of spring material is transformed in its lateral direction so as to become thinner toward the tip while maintaining the vertical thickness of the sheet or section at the original thickness of the material. Subsequently, the same portion is rolled for tapering in a vertical direction.

REFERENCES:
patent: 2608752 (1952-09-01), Schilling
patent: 3153844 (1964-10-01), Roth
patent: 3793868 (1974-02-01), Wilson

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