Aluminum Die Casting

Aluminum die-casting is a process in which molten aluminum alloy liquid is injected into a mold using high pressure, and then solidified, cooled and other processes are used to obtain aluminum alloy die-casting parts. Aluminum alloy has good fluidity and processability, which is conducive to the production of high-quality aluminum alloy products. 

  • Aluminum die-casting products have high shape complexity
  • Can produce large and small sizes, high strength and lightweight aluminum alloy parts
  • The cost is low, the cycle is short, and it can be produced in batches.
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Our Aluminum Die Casting Process

The process selection of aluminum die casting is selected according to the required part design. For example, die casting is more suitable for the production of small and medium-sized and complex aluminum alloy castings. Gravity die casting is more suitable for the production of large and simple aluminum alloy castings. According to the use of parts, we can also carry out subsequent processing and processing of castings to improve the quality and performance of products.

high pressure die casting

Aluminium High Pressure Die Casting

Liquid aluminum is filled into the die-casting cavity at a high speed under high pressure, and the metal or alloy is solidified under pressure to form a casting method. The commonly used pressure in die casting is 4-500MPa, and the metal filling speed is 0.5-120m/s. Therefore, the filling time of the molten metal is very short, and the cavity can be filled within about 0.01-0.2 seconds (depending on the size of the casting).

aluminum low pressure die casting

Aluminum Low Pressure Die Casting

Under the action of gas pressure, the aluminum metal liquid rises along the riser pipe into the sprue, enters the cavity through the ingate smoothly, and maintains the gas pressure on the liquid surface in the crucible. until the casting is fully solidified. Then the gas pressure on the liquid surface is released, allowing the unsolidified molten metal in the riser to flow back to the crucible.

gravity die casting parts

Aluminum gravity die casting

The molten aluminum of gravity casting is generally poured into the gate, and the cavity is filled by the self-weight of the molten metal, exhausted, cooled, and the mold is opened to obtain the sample. Metal mold casting can be divided into vertical manual casting, and inclined casting is now the most widely used metal mold (steel mold) casting.

aluminum die casting mold

Aluminum Die Cast Mold

The advantages of aluminum alloy material die-casting molds are high production efficiency, low cost and good product quality. It can manufacture qualified aluminum alloy parts and products in a short time. Aluminum alloy material die-casting mold is an efficient and cost-effective manufacturing tool. It is widely used not only in the automotive, electronics, machinery and other industries, but also in other fields.

How To Choose Aluminum Die Casting Materials

The selection of suitable aluminum alloy material is very important for the production of aluminum alloy die-casting parts. When selecting the steel material of aluminum alloy die-casting mold, the deformation and anti-expansion performance of the material at high temperature should be taken into consideration to ensure the production efficiency and quality of aluminum alloy die-casting mold.

A380 aluminum alloy material

A380

A380 aluminum alloy die-casting is one of the most widely used aluminum alloy materials. It has a perfect combination of casting and mechanical properties; it also has excellent fluidity, air tightness, thermal crack resistance and machinability

A360 aluminum alloy materials

A360

The A360 aluminum alloy material is easy to compression molded. Because of its ease of casting, it is an excellent choice for parts that require complex designs. Its lightweight properties and resistance to corrosion make it an attractive option for products that need a durable but not too heavy.

A356 aluminum alloy materials

A356

A356 casting offers several advantages including cost-effectiveness, flexibility and excellent mechanical properties. It also has a good surface finish, which can produce high-quality parts that require less secondary operations. A356 becomes the perfect material for marine industry applications.

ADC12 aluminum alloy materials

ADC12

ADC12 aluminum alloy material is an aluminum-silicon alloy with good castability, mechanical properties and corrosion resistance, and is widely used in the fields of automobiles, motorcycles, electrical appliances, mechanical equipment and so on.

ADC10 aluminum alloy materials

ADC10

ADC10 aluminum alloy material is a versatile and cost-effective material that can also be used in harsh environments due to its excellent corrosion resistance. ADC10 alloy material is also light weight and ductile, which makes it easy to machine and weld.

A413

A413 is an aluminum alloy with high silicon content, typically around 12%, and its excellent strength-to-weight ratio, corrosion resistance and good machinability make it an excellent choice for highly complex parts requiring intricate details.

WHO WE ARE

MINDWELL's Die Casting Service Manufacturing Capabilities

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Mindwell is an aluminum die-casting manufacturer that integrates mold opening, die-casting and processing. The company has experienced technical staff, excellent die-casting processing equipment, is an aluminum alloy die-casting manufacturer with advantages in the field.

Hot chamber die casting machine

The hot chamber die casting machine is a process in which metal materials are heated to a liquid state and then injected into a mold to form the desired product under high pressure. Hot chamber die-casting machines are usually suitable for situations where production needs are large and can achieve continuous production. Since aluminum alloys are prone to oxidation, the hot chamber die-casting machine needs to add protective gas during production to protect the service life of the aluminum alloy and mold, but the production cost is also relatively high.

Cold chamber die casting machine

The cold chamber die casting machine adopts a “pre-casting” manufacturing process, which first heats the metal material to a liquid state, then pours it into a pre-casting furnace for casting, and finally uses water cooling to form the desired product. Cold chamber die casting machines are generally suitable for situations where the production demand is small, and are usually used when the structure of the product produced is more complex. Compared with hot chamber die casting machines, its production cost is lower, but there is also the problem of relatively low production efficiency.

Which type of aluminum alloy die casting machine to choose needs to be selected according to specific production needs. If large-scale, efficient, continuous production is required, a hot chamber die-casting machine is usually chosen; and if small, low-cost production is required, a cold-chamber die-casting machine is usually selected.

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Parameter setting

When performing die-casting molding, it is necessary to select the appropriate temperature, pressure and speed for processing according to different product materials and shapes. In addition, factors such as the physical and chemical properties of the molten aluminum alloy, cooling of the mold, etc. also need to be considered. Finally, post-processing of the product is required, including deburring, grinding, spraying and other steps to achieve the expected appearance and functional effects.

Mold making

Mold making is one of the most complex and time-consuming aspects of aluminum alloy die casting. The quality of molds directly affects the accuracy and surface finish of products. Therefore, precise control of materials, processing techniques, dimensions and deviations is required during the manufacturing process. At the same time, strict inspection and testing are also needed to ensure the quality and stability of the mold.

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Surface Finishes of Aluminum Die Casting

The surface treatment of die castings is to improve the surface state of die castings, thicken the surface oxide film or form a new surface mold, so as to improve the corrosion resistance, decoration or other required characteristics of the surface of die castings.

Commonly used surface treatment methods for die castings include chemical conversion treatment, anodic oxidation treatment, electroplating and coating, etc. In order to obtain satisfactory surface treatment effects, die castings need to be pretreated before treatment, including mechanical pretreatment (grinding, polishing, sandblasting, etc.) and chemical pretreatment (degreasing, pickling and alkali cleaning)

Common surface treatment processes for aluminum alloy die castings are as follows:

  • Phosphating of aluminum
  • Alkaline electrolytic polishing process for aluminu
  • Environmentally friendly chemical polishing of aluminum and aluminum alloys
  • Electrochemical surface strengthening of aluminum and its alloys
  • Surface oxidation treatment technology of YL112 aluminum alloy

Related Aluminum Die Casting Products

Our company specializes in various aluminum alloy casting processes, and our products include various radiator heads, valve bodies,aluminum enclosure, auto parts, pipe joints, conductors, mechanical supplies and other series of products.

Application of Aluminum Die Casting

Aluminum alloy die-casting products are currently mainly used in auto parts, electronic casings, communications, motors, aviation, ships, home appliances, furniture accessories, digital casings, handicrafts, security product casings, LED lighting (lampshades) and some new energy industries

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Advantages of choosing MindWell Custom Aluminum Die Casting

Through advanced die-casting technology, MindWell custom-manufactures aluminum die-casting parts of various highly accurate shapes and sizes, providing various complex design requirements, including detailed structures and precise dimensional control

Leading aluminum die casting manufacturer in China