Not only is General Motors planning to introduce carbon fiber composite wheels for vehicles in the near future, it also has a few other tricks to employ in the name of weight saving. During a presentation today, GM described yet another technique it is looking to possibly employ for greater weight savings.
Magnesium could become the next big thing in weight savings regarding inner door panel construction, with incredible benefits over current inner door panel construction. GM stated just over 10-pounds per inner door panel can be shaved off by incorporating magnesium construction. In other words, magnesium inner door panels are 30-percent lighter than aluminum and 50-percent lighter than traditional steel.
It makes packaging simpler, too. Magnesium has the ability to consolidate seven seperate components down to just one piece, all while increasing stiffness locally without added mass. Win-win.
Ten pounds here and there may not seem like much, but combining weight savings from separate techniques can make a huge difference. That said, GM did not confirm magnesium inner door panels for production any time soon, however, it is evaluating the usage for future products to come.