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Production technology of aluminum alloy wheel hub
release:1899/12/30 click:408
Low pressure casting is the most basic method of producing aluminum wheel hub, and it is also relatively economical. Low pressure casting is to melt the molten metal in the mold forming and hardening. Counter pressure casting is a casting method of more advanced, with a strong vacuum to breathe in metal mold, to maintain a constant temperature and to eliminate impurities, casting no stomata and uniform density, intensity is very high. High back pressure die casting (HCM) process production of aluminum wheels almost as forged, the German name plant RX/RY BBS (15-20 inch) series of aluminum wheels is cast with the HCM method.
forging
Forging is manufacturing aluminum wheel hub of the most advanced methods, to 62.3MN pressure a piece of aluminum ingot in thermal state, pressed into a wheel hub. The strength of this kind of aluminum wheel hub is 3 times of the average aluminum wheel hub, and the former is lighter than the latter 20%. Some beautiful and relatively complex structure of the hub, is often not possible for a forging molding. Roll forging (also called die forging) is a kind of forging, the blank of a wheel in the rolling process of forging. Rolling out of the wheel at the same time to maintain sufficient strength, can greatly reduce the thickness of. The aluminum alloy wheel made by this process has not only the density uniformity, smooth surface, thin wall, light weight, but also can bear great pressure. However, because this product requires a more sophisticated production equipment, and the yield is only 50%-60%, so the cost is slightly higher, the price is naturally not low.