Method of manufacturing a structural automotive part made from a rolled Al—Zn alloy
US9493867B2 · kind B2 · utility
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2References
22Claims
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Key dates
| Filing date | Nov 2, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Feb 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24628
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of manufacturing a formed aluminum alloy structural part or a body-in-white (BIW) part of a motor vehicle. The method includes: providing a rolled aluminum sheet product wherein the aluminum alloy is an AA7000-series aluminum alloy and has a gauge in a range of 0.5-4 mm and is subjected to a solution heat treatment and has been cooled, forming the aluminum alloy sheet to obtain a three-dimensional formed part, heating the three-dimensional formed part to at least one pre-ageing temperature between 50-250° C., and subjecting the formed and pre-aged motor vehicle component to a paint bake cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.