Abstract

The properties and structure of the joints of the layered composite material based on aluminum alloys 1570— 1915—1570, made by resistance spot welding, automatic argon arc welding and friction stir welding are presented. The spot, lap and butt joints are made. The strength of the joints made by automatic argon arc welding with the AMg63 fi lling wire was 333...377 MPa at 180° bend angle. The butt joints obtained by the friction stir welding have strength factor of 0.90...0.92 from the strength of the base metal.

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