When it comes to the key words of commercial vehicles in 2019, it must be "lightweight". Whether it is "large ton and small standard", or the side of the bridge caused by overloaded trucks in Wuxi, or the share-based charging policy implemented since January 1, it is declaring that "lightweight" of commercial vehicles is bound to become the general trend.
But equipped with a set of aluminum alloy ring has become the first choice in the "lightweight" era, but the domestic market of aluminum alloy ring, forging too expensive, casting too waste, which also let card friends very tangled: "how should we choose the right price, good quality aluminum ring?

There are gaps between mental molecules in the forged wheels, making the weight of forged wheel itself too heavy.

It is believed that the forging of aluminum ring is the use of a forging machine to constantly apply pressure on a metal blank, causing it to produce plastic deformation to obtain certain mechanical properties, specific shape and size.
After massive processes, the forged aluminum wheels have more steady and stronger structure between molecules, and at the same time, it has a certain degree of elasticity, which is the fundamental reason for the lighter weight and better performance of the forged aluminum wheels. Although forging is good thousand times than others, because of the complex process, high prices of equipment and other factors, the price of forged aluminum wheels is relatively high,

As a result, many forged wheels buyers said: “ It is really a good thing, except its steep price.” In addition, because forging an aluminum wheel is constantly adding pressure on the metal material to achieve deformation, so, it has a very fatal flaw - the possible occurrence of metal cracks.
While the cast aluminum wheel does not have this defect, because the casting process is to melt the metal and then pour it into the mold to cool and solidify, so there is no gap between the metals. However, because the molecular structure of the cast aluminum wheel is not tight enough, a larger thickness is needed to achieve the safety strength, which means that the cast aluminum wheel will not be as light as the forged aluminum wheels.

Use forging technique to make cast wheels, and Yueling’s cast wheels made by this way weight only 24.7Kg.

As a listed enterprise focusing on the production of casting and flow forming aluminum wheels, Yueling adopts such technologies as low-pressure water-cooling casting, flow forming and metal heat treatment, which can make the cast aluminum wheels have the strength comparable to that of forged aluminum wheels.

Low pressure water cooling just as the name suggests, it means casting under the condition of "low pressure, circulating water cooling". This casting method can make the casting structure compact and make it easier to cast large-size and thin-walled complex castings. The water-cooling process can make the aluminum wheel have higher tensile strength and yield strength. These two are combined to improve the strength of the aluminum wheel.
Flow forming is a step after water cooling casting, it means that under a certain degree of pressure and temperature, through continuous rotation and extrusion, the aluminum wheel is continuously extended during the rolling process, ensuring sufficient strength and also reducing the thickness of the wheel. The structure of the aluminum wheel after flow forming can be more compact. This is also the reason why the dead weight of Yueling cast aluminum wheels is comparable to forged ones. At present, the dead weight of a Yueling cast aluminum wheel is only 24.7 kg, which can be said to be one of the lightest in the industry.
Of course, the above two steps are not enough. After coming out from the flow forming equipment, the aluminum wheel has to be reheated to melt, but the shape of the wheel still remains, the condition just like what we often see from the ice water mixture. This allows the crystals to recombine, changing the texture of the wheel, strengthening the wheel and reducing its weight.
Although it seems that the principle is very simple, but in fact the achievement of such a light-weight wheel is not overnight, which has poured a lot of thinking and testing of Yueling R& D personnel, especially the proportion of raw materials which need more experiments to get the best scheme.
Here, some truck wheel buyers may ask: "Since it is made by forging technique, then how does Yue Ling guarantee the product won't have mental gaps that forged products often have?"

High standard inspection of the quality of the aluminum wheel, more rigorous wIth helium inspection

The answer to this question is actually quite simple. There is no guarantee that every aluminum wheel will be free of metal gaps. But the aluminum wheel you buy must be no metal gap.

The way to test whether the aluminum wheel has metal gaps or not is to put it into the water. If there is no bubbles, it means there is no metal gaps, But for such kind way a little bit easily make mistake if the one who check it not carefully.

German VDH fully automated helium air leak tester

Helium is the second element in the periodic table, with only two atoms and small molecular diameter. It can pass where water molecules can pass, and it can pass where water molecules cannot pass, which makes the test more rigorous and makes the aluminum wheel of Yueling 100% without metal cracks. Plus, helium, which is inert, is safer than hydrogen, the top gas on the periodic table.

Commercial truck wheels radial fatigue tester

At the same time, advanced laboratory also provides strong guarantee for Yueling's products. At present, Yueling is the only enterprise equipped with commercial vehicle laboratory between domestic foundries, which continuously make spot checks on radial and bending parameters to ensure products’ quality.

The weight is only 24.7 kg, the strength is comparable to forged aluminum wheel, the price is very reasonable, In addition, the aluminum wheel is more profitable than iron wheel, the lower the weight, the higher profit.