Gear forming method

Details Gear forming method Gear forming method

1996-06-24

1998-05-05

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

723532, 723552, 2989334, B21D 2200

Patent

active

057460850

ABSTRACT:
A method of forming a gear through cold plastic working comprises preparing a disc-like blank, and pressing conically a central portion of the blank with a uniform pressure from upper and lower sides to cause plastic deformation in the blank thereby to form a gear along a gear-shaped die arranged around the periphery of the blank. The blank material is restrained to flow radially at peripheral end faces of the blank during the forming of the gear.

REFERENCES:
patent: 3370450 (1968-02-01), Scheucher
patent: 3832763 (1974-09-01), Schober
patent: 3910091 (1975-10-01), Samanta
patent: 4939829 (1990-07-01), Maki et al.
"University/industry collaboration leads to precision forge production facility", pp. 322, 324, Mettalurgia Aug. 1990.

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