Stirred, not melted: What the Audi R8 and the new ludicrously thin iMac have in common
Apple recently announced a bunch of new products, including a redesigned iMac that brings us a step closer to humanity's dream of a desktop computer thin enough to chop onions. The new iMac is aluminum, and traditional welding methods won't really work to join panels for such a thin (5 millimeters thick) enclosure. To get around this, they're using a method known as Friction Stir Welding. You know where else this exotic method is used? In cars. Cars like the Audi A8, Ford GT, and even more prosaic mounts like the Volvo V70 and Toyota Prius.
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