DETROIT—General Motors uses seven joining methods—including spot welding, laser welding, self-piercing rivets and flow drill screws—to assemble the aluminum body of the new Cadillac CT6 sedan. MORE
GM Uses Seven Methods to Assemble Body of New Caddie
![GM assembly](http://www.assemblymag.com/ext/resources/LatestHeadlines/gm422.jpg?1361892961)