Forged composite powder metal part and method of making same
US9856962B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2012 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Apr 16, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1987
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A forged composite powder metal part, such as a CVJ inner race or bevel gear, and method of making the same are disclosed. The forged composite powder metal part includes a outer section concentrated with a first powder metal material, a inner section concentrated with a second powder metal material and a variable boundary profile between the materials of the two sections. For example, in a forged CVJ inner race, the different materials can provide improved wear resistance in the ball tracks and improved spline performance. As another example, in a forged bevel gear, the different materials can be used to create a continuous variable boundary profile that defines the depth of a harder layer over the teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.