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GM?s New Aluminum Welding Technique is Pretty Slick

Should help improve fuel economy too! GM R&D invented an industry-first aluminum welding technology expected to enable more use of the lightweight metal on future vehicles. According to the GM PR, its new resistance spot welding process uses a patented multi-ring domed electrode that does what smooth electrodes are unreliable or unable to do ? welding aluminum to aluminum. By using the new heads and process, GM expects to eliminate nearly two pounds of rivets from aluminum body parts such as hoods, liftgates and doors.

GM?s New Aluminum Welding Technique is Pretty Slick
xcel, Sep 26, 2012
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