Patent · US Active

Method of manufacturing a sliding camshaft

US9828650B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Huaxin Li · Rochester Hills, US
Glenn E. Clever · Big Rapids, US

Key dates

Filing date	Feb 4, 2016
Grant date	Nov 28, 2017
Priority date	—
Expiry date	Feb 4, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2211/008
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of manufacturing a sliding camshaft for an internal combustion engine includes providing the sliding camshaft from a steel alloy having a carbon content between 0.25% and 0.60%. The sliding camshaft is then processed with a carbon infusing heat treatment process, such as carburization or carbonitriding. After the sliding camshaft has been processed with the carbon infusing heat treatment process, the sliding camshaft is then processed with a quenching heat treatment process, such as a mar-quenching heat treatment process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.