Aluminum alloy useful for driveshaft assemblies and method of manufacturing extruded tube of such alloy
US6248189A · kind A · utility
17Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jun 4, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F7/0085
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum-based alloy useful for driveshaft assemblies and method of manufacturing an extruded tube of such alloy. The alloy includes, in weight %, 0.50 to 0.70% Si, up to 0.30% Fe, 0.20 to 0.40% Cu, up to 0.03% Mn, 0.80 to 1.10% Mg, up to 0.03% Cr, balance Al and impurities. In producing extruded tubing, the alloy is extruded, the extruded billet is water quenched, the quenched tube is drawn in a two-stage drawing operation and the drawn tube is given a precipitation hardening treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.