3 ms·Injection apparently happens in milliseconds, which is crazy at the scale of half a car.by gibolt 6y agoInjection apparently happens in milliseconds, which is crazy at the scale of half a car.baybal2 6y agoBut you get weaker partsRobotbeat 6y agoNot really any more. X-rays and other process improvements have allowed modern die casting to approach hot forged properties. You don’t get grain flow as good as cold forging, but it’s pretty dang good now.