Method using powder metallurgy to manufacture a dog ring gear

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United States of America Patent

PATENT NO 9364886
APP PUB NO 20120321499A1
SERIAL NO

13516461

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a method for manufacturing a dog ring gear, each dog being made up of a front portion and a rear portion, the method including the following steps: forming, by means of compression and sintering, a ring gear with dog preforms extending on all or part of the periphery thereof; and calibrating the sintered ring gear in a die including a front die half and a rear die half intended for engaging at the junction between the front and rear portions of the dogs, the thickness (A) of a rear portion (BP) of each preform, in the original plane of the dogs, being greater than the narrowest section (S1) of a groove formed in the rear die half and smaller than the thickest section (S2) of the groove, in the plane.

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Patent Owner(s)

Patent OwnerAddress
SINTERTECH518 ROUTE DE VALENCE ACTIPOLE VEUREY-VOROIZE 38113

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bonnefoy, Vincent Le Pont de Claix, FR 1 2
Ebroussard, Jean-Luc Le Pont de Claix, FR 1 2

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