..An interesting article,
...... the first thing I learned there was that manufacturing aluminum cans is so challenging, and requires such a vast amount of study, design, and precise machining, that many consider cans the most engineered products in the world.
but as a lifelong "canmaker" , i have to say its only a very superficial glimpse of the full story..
EG.. aluminium cans are relatively easy to make compared to the electo coated steel ones that are equally common inEurope.
One detail relavent to us here is that can manufacturing technology was the basis that battery manufacturers adopted to produce the casings for all those "D", ,"C" , "AA" etc etc primary cells, and also the shells for 18650 cells and similar.