GM resistance spot welding process joins aluminum to aluminum
Green Car Congress
SEPTEMBER 24, 2012
GM already uses this patented process on the hood of the Cadillac CTS-V and the liftgate of the hybrid versions of Chevrolet Tahoe and GMC Yukon. This new technology solves the long-standing problem of spot welding aluminum, which is how all manufacturers have welded steel parts together for decades.
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