The key points to be controlled in the manufacture of automobile wheels

With the development of the automobile industry, the increase in automobile production and share has led to economic development and brought convenience to people. Wheels are an indispensable part of automobiles, and their performance is directly related to the operating stability and safety performance of vehicles, but at present, some automobile wheels have poor impact resistance. The problem is not strong.

A manufacturing method of automobile wheels is proposed to overcome the shortcomings of the prior art. The structure design is simple, the strength is high, the toughness is good, the wheel quality is good, the machining accuracy is high, no deformation, and the impact resistance is strong, which is conducive to product promotion.

Its main components and the mass fractions of each component are: aluminum: 5%-85%, titanium antimony: 0.15%, silicon: 6.5%-17.5%, magnesium: 0.2%-0.4%, according to the quality of each component, a total of 15kg of various raw materials are taken, the above raw materials are heated until completely dissolved, mixed, gravity casting method is used, the aluminum alloy solution is gravity poured into the mold to make a blank, cooled to room temperature, and ground with a lathe.

The beneficial effects of the automobile wheel manufacturing method are: its structure design is simple, high strength, good toughness, good wheel quality, high machining accuracy, not easy to deform, strong impact resistance, which is conducive to product promotion.



The material and difference of automobile wheels

Automobile wheels are an important auto parts, which not only affect the appearance of the car, but also directly affect the safety performance of the vehicle.At present, the wheels on the market are mainly divided into steel wheels, aluminum alloy wheels, carbon fiber composite wheels and magnesium alloy wheels by material.

Steel wheels

Steel wheels are traditional automobile wheel hub materials. Their main advantages are simple manufacturing process, relatively low cost, and strong resistance to metal fatigue.There are two main manufacturing processes for steel wheels, casting and forging, of which the casting process accounts for the majority.The cost of steel wheels manufactured by the casting process is low, but the weight is large, the accuracy is low, and the performance is poor.The steel wheels manufactured by the forging process are light in weight, high in strength and high in precision, but the cost is relatively high.

Aluminum alloy wheels

Aluminum alloy wheels are a more common wheel material in modern automobiles. Their advantages are light weight, high manufacturing accuracy, high strength, low inertial resistance, strong heat dissipation ability, good visual effects and so on.There are two main manufacturing processes for aluminum alloy wheels, casting and forging, of which the casting process accounts for the majority.Compared with steel wheels, aluminum alloy wheels have lighter mass and less inertial resistance, which can improve the acceleration and fuel economy of the car.Moreover, the thermal conductivity of aluminum alloy is better, which can better dissipate the heat of the tires and improve the safety of driving.

Carbon fiber composite wheels

Carbon fiber composite wheel hub is a new type of automobile wheel hub material, which is made of carbon fiber and resin after high temperature and high pressure composite.The advantages of carbon fiber composite wheels are lighter, higher strength, more energy-saving and emission reduction, more durable performance, and better handling.The weight of carbon fiber composite wheels is only about half that of aluminum alloy wheels of the same size, but the strength and durability are higher.Moreover, the manufacturing process of carbon fiber composite wheels is more complicated than that of aluminum alloy wheels, so its cost is very high.

Magnesium alloy wheels

Magnesium alloy wheels are an alloy composed of magnesium as the base and other elements.The advantages of magnesium alloy wheels are light weight, low inertial resistance, and good heat dissipation.However, the disadvantage of magnesium alloy wheels is that they have poor corrosion resistance and are easily corroded by oxygen and water vapor in the air.Moreover, the processing technology of magnesium alloy is very demanding, and the manufacturing process is more complicated than that of aluminum alloy wheels, so its cost is very high.

The materials of automobile wheels are mainly divided into steel, aluminum alloy, carbon fiber composite material and magnesium alloy.Each material has its advantages and disadvantages, and the appropriate hub material should be selected according to actual needs.Among them, aluminum alloy wheels are one of the most widely used automobile wheel materials, while the high cost of carbon fiber composite materials and magnesium alloy wheels is the main obstacle to their popularity.In the future, with the continuous emergence of new materials and new processes, automobile wheels will develop in the direction of lighter, higher strength, more energy-saving and emission-reducing, and more durable.


What are the benefits of 2-piece forged wheels?

Recently, two piece forged wheels are more and more popular in daily life. A two piece wheel have rims fabricated separately from the center and then fastened together with bolts. It is convenient to use a complicated finish since the barrel and the center are separated. The shape is also more complicated and changeable, more fashionable. Besides, through the different sizes of rims and spokes, it is possible to match the specifications of a variety of hubs to meet the needs of customers.

DH wheel is the forged wheels manufacturer which can custom made for customer to fit their requirements.We could show yousome types of 2-piece forged wheels.

2 piece forged wheels

All the 2 piece wheels can be custom made 18-22 inch,andthe wheels size and color can be customized.



What are the benefits of car tires and wheels?

From the perspective of vehicle performance and driving experience, they can indeed have different effects. Usually, large wheels usually have a more domineering appearance, making the entire body appear more calm and powerful. At the same time, large wheels can also improve driving stability and reduce the tilt of the vehicle when turning, thereby enhancing handling and safety.

In addition, large wheels can also improve the load capacity and grip performance of the vehicle. When the tire size is larger, the flattening rate of the tire is relatively small, which means that the contact area between the tire and the road surface is larger and the friction force is greater. This is particularly important for high-speed driving and curve driving, because it will make the vehicle more stable and provide stronger support.

But it is worth noting that the big wheels are not perfect. Large wheels will affect the acceleration and braking performance of the vehicle, because the weight and resistance of the wheels will increase. And large wheels are usually noisier than small wheels, which means they produce more tire noise and affect ride comfort.

Therefore, when choosing the size of an automobile hub, it is necessary to balance the needs of various aspects and weigh different advantages and disadvantages. And according to the adaptability of the model, choose the appropriate size of the wheels to ensure the stability and comfort of the vehicle.


What is the advantage of forged wheel?

Forged wheels are a premium choice for those seeking high performance, durability,lighter,and aesthetic appeal in their vehicles. Unlike cast wheels, which are made by pouring molten metal into molds, forged wheels are created by applying intense pressure to a solid piece of metal, usually aluminum or aluminum alloys.

1.Lightweight and Performance Benefits
One of the main advantages of forged wheels is their lightweight design. The forging process eliminates internal air pockets, creating a denser, stronger structure. This reduces the overall weight of the wheel, which improves vehicle performance in several ways. Lighter wheels reduce the rotational mass, leading to better acceleration, quicker braking, and enhanced handling.

2.Increased Strength and Durability
Forged wheels are significantly stronger than cast wheels due to their solid, uniform structure. The forging process aligns the metal’s grain, enhancing its strength and resistance to deformation. This makes forged wheels moreimpact-resistant andless likely to crack or warp under pressure. This strength is especially important in high-stress conditions, such as racing or driving on rough roads. Forged wheels are better equipped to withstand potholes, curbs, and heavy braking, offering longer-lasting performance and greater safety.

3.Aestheticand Customization
Another key advantage of forged wheels is theiraesthetic flexibility. The forging process allows for more intricate designs and finer detailing, which makes it easier to create wheels with custom shapes and finishes.

22 inch alloy rims manufacturer

4.Long-Term Cost Effectiveness
While forged wheels come at a higher upfront cost, they offer better value over time. Their superior strength and durability mean they are less likely to need replacement due to cracking or wear. Additionally, their ability to reduce weight and improve vehicle performance may result in long-term savings on fuel or battery life in electric vehicles. For those who prioritize quality and longevity, forged wheels are a worthwhile investment.

In summary, forged wheels offer significant advantages in terms of lightweight design, strength, durability, and performance. Their ability to withstand high-impact stresses, improve handling, and dissipate heat makes them ideal for high-performance and luxury vehicles.

What is the size,pcd,et and cb of wheel ?

When it comes to wheels, the termssize,PCD,ET, andCB refer to important specifications that ensure proper fitment and performance on a vehicle. Here's a breakdown of each term:


1.Size of the Wheel

The size of a wheel typically refers to two key measurements:diameter andwidth.

Diameter: The overall diameter of the wheel, usually measured in inches. Common sizes include 15-inch, 16-inch, 17-inch, 18-inch, and so on. This measurement corresponds to the distance from one end of the wheel to the other, from edge to edge.


Width: The width of the wheel is also measured in inches and refers to the distance between the inside edges of the wheel's rim, where the tire sits. For example, you might see a wheel labeled as 18x8.5, which means the wheel has an 18-inch diameter and an 8.5-inch width.



Example: A wheel size of 18x8.5 means:

· 18 inches in diameter

· 8.5 inches in width


2.PCD (Pitch Circle Diameter)

· Definition: PCD refers to thediameter of the circle formed by the centers of the wheel’s bolt holes.

· Format: It's represented by two numbers: the number of bolt holes (studs) and the diameter of the circle (in mm). For example,5x114.3 means:

o 5 bolt holes

o 114.3 mm diameter of the circle passing through the center of the bolt holes.

Example:5x114.3 means:

· 5 bolt holes

· A bolt circle diameter of 114.3 mm

3.ET (Offset)

· Definition: ET, oroffset, is the distance from the wheel’s mounting face (the part that contacts the hub) to the wheel’s centerline.

· Types:

o Positive Offset (ET +): The mounting face is towards the front (towards the wheel's outer side), pushing the wheel inward.

o Negative Offset (ET -): The mounting face is towards the back, pushing the wheel outward.

o Zero Offset (ET 0): The mounting face is aligned with the centerline of the wheel.

Example:ET40 means:

· The mounting face is 40 mm towards the outside of the wheel centerline.



4.CB (Center Bore)

Definition: Thecenter bore is the diameter of the hole in the middle of the wheel, which fits over the hub of the vehicle. It’s crucial for the wheel to match the hub size to ensure the wheel is properly centered.

Common Sizes: Center bore sizes vary based on the vehicle make and model. For instance, common center bore sizes are56.1 mm,66.1 mm, or70.3 mm.

Example:CB 66.1 means:

· The center bore is 66.1 mm in diameter.




What material does the car wheel have? Which one is good?

The wheel rim is an important part of the car, also known as the rim.Generally speaking, it is the part of the axle mounted in the center of the wheel.

Automobile wheels are mainly divided into manufacturing processes, namely casting and forging.Generally speaking, the cast ring is aluminum, and the forged ring also has aluminum and titanium.However, in general, forged rings have high strength, cast rings are light in weight, automobile power loss is small, and the running speed is fast.

Another different indicator of the wheel rim is the different hole distance and eccentricity distance.The hole distance is just the position of the screw.The eccentricity distance reflects the distance of therim from the surface of the screw to the centerline of therim.A very good wheel rim requires uniform density, round shape, and good performance.

Car wheels can be updated, and some people will upgrade their wheels.For larger wheels, the outer diameter of the tire remains the same, and the flatness of the tire becomes larger.The lateral swing of the car is smaller and the stability is improved.However, the car has lost its comfort.The wheels currently used are made of aluminum alloy material, which has a beautiful appearance, but they are also very exquisite. In order to maintain the beauty of the wheels, in addition to paying special attention to preventing accidental damage to the wheels during driving, regular maintenance of the wheels is also required.


What should be considered before buying the car rim?

When choosing the size of a car wheel, there are many factors to consider.Traditionally, larger wheels are considered a better choice because they can provide a better appearance and higher performance.However, not all vehicles are suitable for using large-size wheels, so different factors need to be weighed.

First, larger wheels usually mean smaller tire flatness.This can improve handling and vehicle response, but it may also affect ride comfort.A smaller flatness of the tire may make the tire more susceptible to damage on uneven roads, which may increase the maintenance cost of the vehicle.

Secondly, larger wheels can improve the performance of the vehicle.This is because larger wheels can provide more brake space and lower rotational inertia.These factors can improve braking ability and acceleration performance, but the correct size must be selected to ensure good results.

Finally, larger wheels may have an impact on fuel economy.This is because larger wheels usually mean greater wheel weight and higher rolling resistance of the vehicle.This may lead to a decrease in fuel economy and increase the operating costs of the vehicle.

Considering these factors, the size of the wheel hub varies from car to car.

Generally speaking, smaller cars are suitable for using smaller wheels, while larger SUVs and trucks are suitable for using larger wheels.

In addition, the usage scenarios and personal preferences of the vehicle need to be considered.

When purchasing a new wheel, you should consult a professional automotive technician to ensure that the appropriate wheel size is selected.


Which processes of the wheel rim can be changed to electroplating?

“Multi-layer environmental protection ion technology" uses powder spraying technology and magnetic control vacuum coating technology to process electroplating wheels. The production technology replaces the traditional high-pollution, high-cost, zero-pollution, and production model, creating high value-added, advanced product technology, beautiful and luxurious appearance, green environmental protection, and superior performance. It has been widely recognized by the domestic and foreign markets.

Once the electroplated wheel rim is scratched, the cost of replacing the entire wheel rim is relatively high, and it is not affordable, and it cannot be repaired and refurbished.

Generally, some of the original wheels have a painted surface, some have a brushed surface, some have a polished surface, some are imitated electroplating, and some are electroplated wheels.

Then, whether it is painting, drawing, polishing, or electroplating, it can be changed to electroplating wheels.If the surface is electroplated wheels, it can be electroplated after a long time.

Some car owners may question that it is not difficult to change the wheel technology, but if our wheel itself has corrosion, clearance, deformation, etc., can we still electroplate it?

It's completely possible. The electroplating of the wheel rim is to repair the wheel rim and then electroplate it to ensure the quality and effect of the wheel rim electroplating for most car owners.

After the wheel rim enters the factory, it will be handed over to a professional wheel rim maintenance expert for wheel rim inspection to confirm whether the wheel rim has corrosion, gaps, deformation, fracture, etc.If so, after the wheel rim repair is completed, professional electroplating equipment and electroplating technology will be used for electroplating and electroplating.At the same time, combined with professional maintenance technology, new maintenance effects can be achieved, the surface is smooth and bright as a mirror.

Why are most of the car wheels made of five spokes?

The vast majority of aluminum alloy automobile wheels are now cast, despite the heat treatment, the residual stress must still exist. If it is an even number, it is easy to produce greater stress on a pair of spokes at 180 degrees, which exceeds the tensile and shear strength, and then breaks. If it is an odd number of spokes, the stress and deformation can be transferred to more spokes, which plays an average role. If the three frames are too far apart, the force is still concentrated, and the five spokes are ideal. Also because of this reason, the ten-spoke wheels are generally arranged in a double five-spoke manner.

Big Sizes 22 Inch Automobile Alloy 1-Piece Forged Wheel