Patent ID: 9731772
Date: 2017-08-15
CPC Classifications: B62D,C22C,C22F,Y10T

Claim:
1. An automobile body or component thereof comprising at least a first sheet metal component of a first aluminum alloy (A) and at least a second sheet metal component of a second aluminum alloy (B), whereby the first and second aluminum alloys are AlMgSi type aluminum alloys and, after artificial ageing of the body or component thereof, the second sheet metal component has a lower mechanical strength than the first sheet metal component, wherein at least the first aluminum alloy component (A) contains: wherein at least in the second sheet metal component of the second aluminum alloy (B), a substantial part of the elements Mg and Si, which are required to achieve artificial ageing in solid solution, are present as separate Mg wherein the second sheet metal component of the second aluminum alloy (B) has a yield strength of 60 MPa or less.