If you take a good look at a metal soda can, you might wonder some things. How do they get those little airtight cans out of a huge sheet of aluminum coming off an industrial-sized roll? And if you've ever tried Sharpie-ing a can, you know ink and metal aren't a great combo; how do they get the graphics on there?
This is an awesome manufacturing vid from Discovery that shows how 2,000 cans a minute blaze off of the assembly line.
The part that most surprised us: how is that pop-top attached? We always thought it was somehow bonded, but in fact it's just a simple roll-fold. Who knew?
via techeblog
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