Invention Grant
- Patent Title: Process and device for manufacturing a gear part with outer teeth
- Patent Title (中): 用于制造具有外齿的齿轮部件的工艺和装置
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Application No.: US230503Application Date: 1999-01-26
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Publication No.: US6161409APublication Date: 2000-12-19
- Inventor: Udo Friese
- Applicant: Udo Friese
- Applicant Address: DEX Schormelweg
- Assignee: WF-Maschinebau und Blechformtechnik GmbH & Co. Kommanditgessellschaft
- Current Assignee: WF-Maschinebau und Blechformtechnik GmbH & Co. Kommanditgessellschaft
- Current Assignee Address: DEX Schormelweg
- Priority: DEX19632704 19960814; DEX19635152 19960830
- Main IPC: B21D53/28
- IPC: B21D53/28 ; B21H1/04 ; B21H5/00 ; B21H5/02
Abstract:
A 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.
Public/Granted literature
- US5497090A Bandwidth extension system using periodic switching Public/Granted day:1996-03-05
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