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US 2018/0238429 A1Published application
Gear transmission stage
AssigneeMiba Sinter Austria GmbH
InventorsMario MITTERMAIR, Karl DICKINGER
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Abstract
A gear transmission stage has two intermeshing gears hardened by heat treatment. In order to improve the noise behavior, one of the two gears has a final form determined by hard fine machining and the other gear has a form which is determined by heat treatment and is close to finished contours.
Claims3
A method for forming a gear transmission stage comprising a first gear and a second gear, the method comprising steps of:
- providing the first gear and the second gear, the first gear and the second gear comprising sintered steel and having teeth, respectively;
- subsequently subjecting the first gear and the second gear to a heat treatment such that the first gear and the second gear are hardened;
- subsequently hard fine machining the first gear;
- wherein the hard fine machining produces a final form of the first gear;
- and
- wherein the heat treatment produces a final form of the second gear.
3 more elements
Dependencies are inferred from the claim text.