EP 0921879 B1 20000712 - PROCESS AND DEVICE FOR MANUFACTURING A GEAR PART WITH OUTER TEETH
Title (en)
PROCESS AND DEVICE FOR MANUFACTURING A GEAR PART WITH OUTER TEETH
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES AUSSEN VERZAHNTEN GETRIEBETEILES
Title (fr)
PROCEDE ET DISPOSITIF DE FABRICATION D'UNE PARTIE D'ENGRENAGE A DENTURE EXTERIEURE
Publication
Application
Priority
- DE 9601641 W 19960903
- DE 19632704 A 19960814
- DE 19635152 A 19960830
Abstract (en)
[origin: WO9806521A1] 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 in 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 pot-shaped predrawing may be collapsed.
IPC 1-7
IPC 8 full level
B21D 53/28 (2006.01); B21H 5/00 (2006.01); B21H 5/02 (2006.01); B21H 1/04 (2006.01)
CPC (source: EP US)
B21D 53/28 (2013.01 - EP US); B21H 5/02 (2013.01 - EP US); B21H 1/04 (2013.01 - EP US); Y10T 29/49471 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9806521 A1 19980219; CA 2263408 A1 19980219; EP 0921879 A1 19990616; EP 0921879 B1 20000712; ES 2148807 T3 20001016; JP 2000515812 A 20001128; JP 3840264 B2 20061101; US 6161409 A 20001219
DOCDB simple family (application)
DE 9601641 W 19960903; CA 2263408 A 19960903; EP 96937179 A 19960903; ES 96937179 T 19960903; JP 52713997 A 19960903; US 23050399 A 19990126