Method for the manufacture of a machine part with external teeth

Details Method for the manufacture of a machine part with external teeth Method for the manufacture of a machine part with external teeth

1997-04-10

1998-10-27

Larson, Lowell A.

Metal deforming

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

With modification or control of temperature of work, tool or...

72102, 2989332, B21H 502

Patent

active

058264523

ABSTRACT:
A method for the manufacture of a machine part with external teeth, particularly a starter ring or gear part, by spin forming of a circular blank and inductive heating which makes it possible to form high-quality tooth systems on an outer area of a cylindrical part. A circuit metal blank is fixed between chuck jaws in a spinning device and an end region is heated by at least one induction device and passes into a plastic state. Tools are then infed on either side of the chuck jaws and a forming operation, which includes material upsetting, is performed with a gear-cutting roll to form the external teeth. This is followed by induction heating of the teeth.

REFERENCES:
patent: 659723 (1900-10-01), Williams
patent: 3273366 (1966-09-01), Schuman
patent: 3745851 (1973-07-01), Zeldman et al.
patent: 3914083 (1975-10-01), Arai

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