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Patent Searching and Data

Document Type and Number:
Japanese Patent JP3840264
Kind Code:
PCT No. PCT/DE96/01641 Sec. 371 Date Jun. 26, 1999 Sec. 102(e) Date Jun. 26, 1999 PCT Filed Sep. 3, 1996 PCT Pub. No. WO98/06521 PCT Pub. Date Feb. 19, 1998A process is disclosed for manufacturing a gear part with outer teeth from a metallic workpiece shaped as a circular blank or predrawing. The gear part has a hub surface with outward projecting teeth. The workpiece is flattened in its circumferential area and the teeth are formed without cutting by a toothed roller (5) mounted in a freely rotary manner. While the teeth are formed by flattening the workpiece, the toothed roller (5) is fixed in the radial direction so as to not move towards the feeding axis of the spindle. The edge of a circular blank may be curled or thickened or the cylindrical edge of a potshaped predrawing may be collapsed.

Frize Wood
Application Number:
Publication Date:
November 01, 2006
Filing Date:
September 03, 1996
Export Citation:
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Weev Maschinenbaunt Brechform Tehinik Gezelshaft Mitt Beschlenktel Haftung Und Company Comandiet Gezelshaft
International Classes:
B21H5/00; B21D53/28; B21H5/02; B21H1/04
Domestic Patent References:
Foreign References:
Attorney, Agent or Firm:
Fujita Akira