
What comes to mind when you hear the term aluminum die casting? If this is your first time to hear about it and you want to know more information, you came to the right place! Here at SEI Castings, we will discuss the answer to the question “what is aluminum die casting?” and other information that you will need to understand its process.
What is Die Casting?
The die casting process started during the 1800s. Die casting was done in the early days by using the low-pressure injection method. Nowadays, the die casting process uses high-pressure techniques such as semi-solid and squeeze die casting methods. Die casting is useful in different industries because it uses a technique where metals such as aluminum, magnesium, zinc, copper, etc. can be molded in a cavity by using high pressure.
Die casting molds can be used repeatedly and can be customized and produce products with different sizes, shapes, and wall thickness. The molds can be designed with complex shapes and can produce products that are accurate and with excellent surface finish and aesthetic appeal. Currently, the die casting process is continuously being improved by using enhancing the alloys as well as the casting process.
What is Aluminum Die Casting?
Aluminum die casting is one of the most popular die casting processes available. It uses aluminum, a lightweight metal. The casting process often uses a mold made out of steel and it is capable of mass production of aluminum die-cast products. Aluminum will be molded in the die cavity and it will rapidly solidify and it will take the shape of the mold used.
Die casting machines are usually made with stationary and moveable parts. Die casting machines can be either simple or complex; some machines have moveable parts with different cores and sections. Some of the die-cast machines use the mechanism operated by hydraulic cylinders, while others use direct-acting hydraulic pressure. Die-cast machines can be either small or big but may vary in the method used when injecting the molten metal into the die-cast mold.
Aluminum is a popular metal used in different applications all over the world. It has distinct features such as corrosion-resistant, lightweight, high thermal and electrical conductivity. It is often used by different industries because it is stable when used in complex shapes and it has high ductility property.
Aluminum is highly used by the transportation industry and it is also used to replace iron and steel components in vehicles because aluminum is a lightweight metal that helps increase the fuel efficiency of the automobile. Aluminum die-cast products are commonly used for electronic connectors and housings because it has excellent electrical performance and it also shields devices even when exposed in high-temperature surroundings.
Aluminum die casting is also used in the construction industry in most of the countries in the Asia Pacific region. It is used in creating products used in building windows, curtain walling, shop partitions, buildings, etc. Aluminum die-cast products are also introduced in the aerospace industry and also when building airplanes since they prefer to use dense and high-quality products that are low-cost for airplane components and frames.

Advantages of Using Aluminum Die Cast Products
There are a lot of reasons why aluminum is used for the die casting process. One reason is that aluminum is one of the most commonly used non-ferrous metals. Since it is a lightweight metal, it can produce lightweight metal parts and without sacrificing its strength and ductility. Aluminum die-cast parts allow more surface finishing options and it can withstand high temperatures than other metals.
It is corrosion-resistant, which helps prevent corrosion in areas exposed to ever-changing weather and climate. It provides good stiffness and strength to weight ratio. It does not compromise its strength ability even if it is a lightweight metal. Aluminum die-cast products can be produced using a rapid production rate which results in producing high-volume die-cast parts quickly and the manufacturing costs lower than the other casting processes.
Aluminum die-cast products are lightweight, durable, high resistance to corrosion, exceptional conductivity of electricity, high thermal conductivity, impressive strength to weight ratio, excellent shielding properties and recyclable and reusable. It can withstand high operating temperatures because of its heat dissipating properties and can be used with different surface finishes.
What are the applications for aluminum die-cast products?
- Aluminum castings increase an automobile’s fuel efficiency due to its weight-saving requirements.
- Aluminum products are used in networking and infrastructure equipment in the telecom industry such as RF filter boxes and housings necessitate heat dissipation and aluminum die-cast products have high heat dissipation properties.
- Aluminum castings are used in handheld devices to provide EMI/RFI shielding, as well as durability and rigidity without compromising the weight of the product.
- Aluminum die-cast is perfect for electronic housings and connectors because aluminum is known for its superb electrical and shielding properties even when exposed in areas with high temperatures.

If you need aluminum die-cast products, make sure to trust a leading custom aluminum die caster company like SEI Castings to do the job for you!
Are you looking for a renowned custom aluminum die caster that produces high-quality aluminum alloy products? SEI Casting is perfect for you! We are located in Gilroy, California, USA. We can customize your product orders according to your specifications and we can lower the manufacturing cost of your product. Please contact us by calling our number 408-622-4887. You can also request a die casting quote here. You can check out our available products and finishes here. We are looking forward to hearing from you!