Patent · US Active

Methods of extruding magnesium alloys

US7967928B2 · kind B2 · utility

8Cited by

9References

24Claims

0Family size

Assignee

GM Global Technologies Operations LLC · US

Inventors

Aihua A. Luo · Troy, US
Anil K. Sachdev · Rochester Hills, US

Key dates

Filing date	Oct 1, 2007
Grant date	Jun 28, 2011
Priority date	—
Expiry date	Apr 27, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22F1/06
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Methods of extruding magnesium-based casting alloys are provided. The magnesium alloys have relatively high strength and castibility, as well as an improved ductility and extrudability for wrought alloy applications. The magnesium-based wrought alloy comprises aluminum (Al) of between about 2.5 to about 3.5 wt. %, manganese (Mn) of less than about 0.6 wt. %, zinc (Zn) of less than about 0.22 wt. %, other impurities of less than about 0.1 wt. %, and a balance of magnesium (Mg). The disclosure provides various methods of forming extruded structural components, including automotive components, and methods of forming such wrought alloys.

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