Talking about Casting Forged Aluminum Alloy Wheels

With the increase of time, many advantages of aluminum alloy wheels have been recognized and accepted by more and more people, and the amount of loading has also increased. Recently, there has been a relatively cheap cast aluminum alloy wheel in the market. What is the difference between this cast aluminum alloy wheel and the forged aluminum alloy wheel?

● Casting hub technology is relatively simple and suitable for mass production.

Low-pressure casting is the most basic method for producing aluminum wheels, and it is also economical. The more common ones are low-pressure casting and high-pressure casting. Low-pressure casting is to mold and harden the molten metal in the mold, and the cooled blank is then subjected to a fine processing and polishing process on the lathe to finally obtain the finished product.

High-pressure casting is a relatively advanced casting method. The molten metal is sucked into the mold by suction generated by high vacuum. This is beneficial to maintain constant temperature and remove impurities. There is no pore in the casting and the density is uniform. The strength is higher than that of low pressure casting. . The casting process is relatively simple and suitable for mass production, which is beneficial to reduce costs.

● Forged wheel technology is more complex and cost-effective

Forging is the most advanced method for the manufacture of aluminum wheels. The forged aluminum alloy wheels are repeatedly forged into a hub blank by a large forging press under a certain pressure. After the forging, the blank is subjected to spinning treatment. The function of this process is to stretch the width of the rim to achieve the corresponding standard. After the spinning process, the hub has been basically formed, and then the lathe is finished, after the painting is finished. The finished aluminum alloy wheel hub can be obtained.

Because the forging process is complicated, the forging equipment is expensive (the cost of a large forging press is tens of millions of dollars), so the cost of the forged wheel is relatively high.

● Metallographic analysis of forged wheels is better

We can see that the cut surface of the forged wheel is very smooth, the metal grains are arranged tightly and without roughness, and the metal grain of the cast aluminum alloy wheel is loosely arranged, and the large cut surface of the metal particles has a strong rough feeling.

Under the microscope, the metal molecules arranged on the right casting wheel have large loose particles, and the metal molecules of the left forged aluminum alloy hub are arranged very closely. The tighter the arrangement of metal molecules, the higher the toughness of the hub, and the better the impact resistance, strength and load bearing capacity.

● The appearance is difficult to distinguish the difference in weight

Forged wheels and cast wheels are almost indistinguishable in appearance, but there is a big difference in metal properties. The toughness, impact resistance, strength and load carrying capacity of forged wheels are higher than those of cast wheels, and the heat dissipation performance of the two is not too great. The difference. However, cast wheels are generally about 20% heavier than forged wheels.

● Compilation

Although the casting aluminum alloy wheel and the forged aluminum alloy wheel have a slight difference, the performance of the casting wheel alloy wheel produced by the latest technology is very close to that of the forged wheel. The card friends can choose their own aluminum alloy according to their own vehicle working conditions. Wheels, but beware of some unscrupulous home casting wheels forged forged wheels.

Concerned about surprises

Tag: Casting Forged Aluminum Alloy Wheels

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