Method for the manufacture of a gear part

Details Method for the manufacture of a gear part Method for the manufacture of a gear part

1998-01-16

1999-07-27

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

With metal deformation of different type

72 71, 72110, 2989332, B21H 0500

Patent

active

059271213

ABSTRACT:
A method of manufacture of a gear part with a bottom area and a circumferential area, which has two portions. One portion extends to one side of the bottom area, while the other portion extends to the opposite side of the bottom area. On one portion is formed an inner profiling and on the other portion an outer profiling. According to a first method, on a cup-shaped preform a web is formed by splitting or flow-forming and extends in the opposite direction to the cup wall. In the thus formed web and in the cup wall are subsequently made the desired profilings. In a second method, an arcuate curl is produced and is subsquently flow-formed to the portions with the profilings.

REFERENCES:
patent: 4824422 (1989-04-01), Jocic
patent: 4936129 (1990-06-01), Lipper et al.
patent: 5072509 (1991-12-01), Bichel et al.
patent: 5806358 (1998-09-01), Rolf

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