Although some engineers have had success in spot welding steel and aluminum together, it has largely been considered impossible to achieve reliable, continuous welds directly between the two ...

GM says it’s also is the first automaker to spot-weld aluminum to aluminum, a process it started using in 2008 on a vehicle liftgate.

GM tested the water when it put an aluminum liftgate on a Tahoe hybrid in 2008 and tested its ability to do aluminum-to-aluminum spot welding.

Rivets, high-tech adhesives, mixed-metal joints, and yes, laser-wielding robots will all help assemble the 2016 Cadillac CT6.

As hard as we try to avoid it, rust is an inevitable issue with all cars. Sometimes it is just cosmetic, but when it gets ...

Well, GM's new resistance spot-welding process uses a patented multi-ring domed electrode. The new process saves about 2 pounds of rivets in aluminum body parts.

General Motors will license out its patented spot welding technique and technology, as seen on the 2016 Cadillac CT6.

Other manufacturing techniques include aluminum spot welds, steel spot welds, flow drill screws, self-piercing rivets, laser welding, aluminum arc welding, and structural adhesive.

Joining It All Together Spot welding aluminum requires higher electric currents and some means of removing the oxidized coating that covers this metal’s surface.

Acura engineers have come up with a new welding technique that allows them to join ordinary steel components with lightweight aluminum pieces in a much simpler process than traditional methods ...

Overpowered Spot Welds —These resistance spot welds in steel show evidence of too much electrical power, which has caused molten metal to spray out.

Tesla Model 3 production held up by welding woes? Spot-welding hasn't been essential to Tesla production until now By Katie Burke at Automotive News Published: Oct 16, 2017 Save Article ...