Patent ID: 8263233
Filing Date: 2012-09-11
Classification: B23K,B32B,B62K,C22C,C22F,Y10T

Abstract:
1. A frame member for use in a two-wheeled vehicle and an all-terrain vehicle, comprising a plurality of Al members each formed of a 7000 series Al alloy consisting of Cu: 0.01 to 0.50%, Mg: 0.5 to 2.1%, and Zn: 4.0 to 8.5% on a mass basis, the balance being Al and inevitable impurities, the plurality of Al members being integrated by welding and subjected to one of a T4 treatment and a T6 treatment, wherein the plurality of Al members are integrally connected by means of a weld joint formed by welding using a filler metal consisting of Mg: 5.5 to 8.0%, Cr: 0.05 to 0.25%, Ti: 0.25% or less, Si: 0.4% or less, Fe: 0.4% or less, Cu: 0.1% or less, Zr: 0.05% or less and Zn: 0.25% or less on a mass basis, the balance being Al and inevitable impurities.