Invention Grant
- Patent Title: Method and apparatus for manufacturing a gear wheel with stub toothing
- Patent Title (中): 用于制造带齿的齿轮的方法和装置
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Application No.: US14348265Application Date: 2012-09-22
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Publication No.: US09399251B2Publication Date: 2016-07-26
- Inventor: Jens Pospischil , Anton Schmid , Norbert Kotulla
- Applicant: SONA BLW PRAZISIONSSCHMIEDE GMBH
- Applicant Address: DE Remscheid
- Assignee: SONA BLW PRAZISIONSSCHMIEDE GMBH
- Current Assignee: SONA BLW PRAZISIONSSCHMIEDE GMBH
- Current Assignee Address: DE Remscheid
- Agency: Katten Muchin Rosenman LLP
- Priority: DE102011114504 20110929
- International Application: PCT/EP2012/003968 WO 20120922
- International Announcement: WO2013/045064 WO 20130404
- Main IPC: B21K1/30
- IPC: B21K1/30 ; B21J5/12

Abstract:
A method of manufacturing a gear wheel with stub toothing for a change-speed gearbox includes drop-forging a gear wheel body and forming the stub toothing by cold die-grooving in the forging die using a forming tool with forming parts which are arranged in a fan-shaped manner. The forming ends penetrate into the tooth spaces, wherein the forming parts are guided jointly between an upper and a lower receiving plate and are moved in a direction radially inwards in such a way that material is displaced out of the region of the tooth flanks into the tooth root regions.
Public/Granted literature
- US20140223985A1 METHOD AND APPARATUS FOR MANUFACTURING A GEAR WHEEL WITH STUB TOOTHING Public/Granted day:2014-08-14
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