Originally Posted by Scottina06
Sorry....there's a thread here where member "svenskajeepguy" weighed both...and the replicas were 2 pounds lighter....iirc.
Of course they are lighter, they took a forged wheel and cast a copy.
Here's where I have a problem, this statement and the one above where you claim, as a metallurgist, that cast and forged have the same properties. Two quantities of the same Or similar alloy cannot have the same strength and be as much as 10% different in weight.
Now, can a cast wheel be as strong as a forged wheel? Sure but the wheel's design, shape and process used to cast and treat the metal all weigh into that. Porsche has been designing lightweight cast wheels for decades that are as strong as a quality forged wheel but their shape, amount and location of the metal are all calculated to produce the desired strength and weight. When they go racing they ditch the cast production wheels and substitute a much lighter forged wheel.
I will stand by my assertion that a forged wheel is stronger than an identical
copy made from a casting. Even if the copy is produced using a high pressure casting method (which most Chinese replicas aren't)
And as for where the material comes from, that's irrelevant. It's the process and quality control that matters and unless things have changed Quality and Chinese knock off manufacturing don't usually go hand in hand.