4 ms·
also, doesn't injection-casting cost vastly more power? I assume for injection-casting the steel needs to be molten to be injected into the casting? Doesn't thi
by kazen44 6y ago
also, doesn't injection-casting cost vastly more power? I assume for injection-casting the steel needs to be molten to be injected into the casting? Doesn't this greatly increase their production time because the frames need to cool before they can be handled.
Stamping is populair because it is very fast, has minimal waste and is a procedure with very little variables.
- hristov 6y agoIt is not that clear cut. Stamping requires softer steel which can be bent in those stamping machines. However, softer steel kind of goes against the purpose of of the body parts in the car. If you use softer steel you need more of it to ensure it carries the weight of the car and handles the stress the car is expected to take without deformation. Existing cars and trucks probably carry a lot of extra weight just so that they can use that soft bendable steel. There is another benefit to softer steel in that it absorbs vibrations. But this is less relevant for electric cars, because there are no vibrations form an ICE. Furthermore, stainless steel is too hard to be used for stamping machines, so if you use stamping you have to worry about rust. So it is very possible that the Tesla engineers did the math and figured out that if the body did not need to absorb engine vibrations, they could save a lot of weight and ultimately energy if they used casting.
- chmod600 6y agoCan't you heat the stainless steel enough for stamping but way below the melting point?