Aluminum both dents easily and scratches easily. It is a cheap crappy material. That is why it is used in soda cans, but, with a few exceptions, is not commonly used in things that need to be durable.
Wow, it must be extremely self fulfilling to be a clueless expert, knowing nothing about what your talking about, but being so extremely self assured. Don't let Boeing, LandRover, Mercedes, Audi, Lamborghini, Ferrari, know about your recent discoveries in the subpar quality of aluminum, all there world class products may crumble like a tin can. If you have no clue what your talking about, don't pretend like you have any insight. The patent looks like it was granted by an 18yr old. Typical steel mill machinery that has existed for the last 70+ years all metals are liquid at the point prior to cooling and annealing, can't wait for Mittal to challenge sue/invalidate the patent. I wonder at which point in time Apple will apply for patenting the wheel.