Alloy Automotive Wheel

Alloy wheels are wheels that are made from an alloy of aluminium or magnesium. Alloys are mixtures of a metal and other elements. They generally provide greater strength over pure metals, which are usually much softer and more ductile. Alloys of aluminium or magnesium are typically lighter for the same strength, provide better heat conduction, and often produce improved cosmetic appearance over steel wheels. Although steel, the most common material used in wheel production, is an alloy of iron and carbon, the term "alloy wheel" is usually reserved for wheels made from nonferrous alloys.

The earliest light-alloy wheels were made of magnesium alloys. Although they lost favor on common vehicles, they remained popular through the 1960s, albeit in very limited numbers. In the mid-to-late 1960s, aluminum-casting refinements allowed the manufacture of safer wheels that were not as brittle. Until this time, most aluminum wheels suffered from low ductility, usually ranging from 2-3% elongation. Because light-alloy wheels at the time were often made of magnesium (often referred to as "mags"), these early wheel failures were later attributed to magnesium's low ductility, when in many instances these wheels were poorly cast aluminum alloy wheels. Once these aluminum casting improvements were more widely adopted, the aluminum wheel took the place of magnesium as low cost, high-performance wheels for motorsports.

Production Methods

CNC machining:

If you don`t need a big quantity or or need some customized wheels, you can use CNC machining process, it`s a little expensive than other processes, but you can use many different metal material as you want.

Forging

Forging can be done by a one or multi-step process forging from various magnesium alloys, most commonly AZ80, ZK60 (MA14 in Russia). Wheels produced by this method are usually of higher toughness and ductility than aluminum wheels, although the costs are much higher.

High pressure die casting (HPDC)

This process uses a die arranged in a large machine that has high closing force to clamp the die closed. The molten magnesium is poured into a filler tube called a shot sleeve. A piston pushes the metal into the die with high speed and pressure, the magnesium solidifies and the die is opened and the wheel is released. Wheels produced by this method can offer reductions in price and improvements in corrosion resistance but they are less ductile and of lower strength due to the nature of HPDC.

Low pressure Die casting (LPDC)

This process usually employs a steel die, it is arranged above the crucible filled with molten magnesium. Most commonly the crucible is sealed against the die and pressurized air/cover gas mix is used to force the molten metal up a straw-like filler tube into the die.

Gravity cast alloy bicycle wheel. 1960s Bootie Folding Cycle

When processed using best practice methods LPDC wheels can offer improvements in ductility over HPDC magnesium wheels and any cast aluminum wheels, they remain less ductile than forged magnesium.

Gravity casting

Gravity-cast magnesium wheels have been in production since the early 1920s and provide good ductility, and relative properties above what can be made with aluminum casting. Tooling costs for gravity-cast wheels are among the cheapest of any process. This has allowed small batch production, flexibility in design and short development time.

We take the CNC machining as core technology, meanwhile, we integrate other upstream and downstream resources in our industrial chain to provide service for the customer.
We have 4 five-axis CNC, more than 30 high-speed CNC machining centers, CNC lathes, CNC carved machines, in total we have more than 50 machining equipment.
We are able to provide machining service of CNC milling, turning, engraving, cutting, tapping, drilling, etc.

Quality control:

We will provide all documents as you need such as inspection report, material report, etc. To meet your quality requirements of products and parts.

After-sale service:

If the parts have any quality problems when you got them, no matter it happened when we made them or caused by the delivery, we will try best to help you to solve the problems and take our part of responsibility, so you will be free from worries.