Sintered toothed element with locally selective surface...

B - Operations – Transporting – 22 – F

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B22F 5/08 (2006.01) B21H 5/02 (2006.01) F16H 55/06 (2006.01)

Patent

CA 2611625

Disclosed is a method for producing an at least partly surface-compressed metallic gear element that comprises a compressed sintered material in order to improve a strength curve. A blank of the gear element is produced with a locally selective oversize (701) relative to a final size of the gear element and is rolled by means of at least one rolling tool so as to obtain the final size. The gear element is compressed in a locally varied manner at least in the area of at least one flank (705; 706) and/or one root (704) of a tooth of the gear element in order to create a compressed surface layer.

Procédé de fabrication d'un élément d'endentement métallique à densification de surface au moins partielle qui possède une matière de frittage densifiée, pour l'amélioration d'un tracé de résistance. Selon ledit procédé, une ébauche de l'élément d'endentement est fabriquée avec une cote (701) localement sélective par rapport à une cote finale de l'élément d'endentement et compactée pour obtenir la cote finale à l'aide d'au moins un outil de compactage. L'élément d'endentement est densifié de manière localement variée pour la production d'une couche superficielle densifiée au moins dans la zone d'un flanc (705; 706) et / ou d'une base (704) d'une dent de l'élément d'endentement.

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