Aluminum Casting Services
CFS Foundry provides high quality aluminum casting services with competitive prices. We can customize cast aluminum parts from your drawings or samples.
- Utilizing Several Casting Processes
- Lightweight While Maintaining Good Strength
- Can Cast Aluminum Parts In Various Shapes
What is Aluminum Casting?
Aluminum casting is the process of producing custom cast parts and products by pouring hot molten aluminum into mold cavities to form desired shapes, then cools down and solidifies into its final form. Aluminum is one of the most frequently utilized metals used for casting processes. Aluminum casting offers several distinct advantages over other casting processes, including being relatively cost effective while producing parts with excellent dimensions, surface finish and mechanical properties suited for diverse applications. CFS Foundry is a top leading aluminum casting company in China. We produce top-of-the-line aluminum castings to serve a range of industries – automotive, aerospace and marine among them.
Aluminum Casting Process
Aluminum casting process involves several steps. To begin with, design of the mold – which determines its final form – must occur first. The mold typically consists of two-part patterns made out of wood or metal material to meet this goal.
Next, the mold must be prepared by coating it with a release agent to avoid aluminum sticking to it, when being cast into its mold cavity. After closing up and pouring molten aluminum into it, the process can continue as previously. As the aluminum cools and solidifies in its mold, it takes on its desired form and shape. Once set, the mold can be opened up to take out your finished product!
Why CFS Foundry for Aluminum Casting Services?
CFS Foundry has been providing high-quality aluminum casting services for over a decade. We have worked with clients in various industries, including aerospace, automotive, construction, and more. Our team of experts is well-versed in the latest casting techniques and technologies, ensuring that we deliver precise and consistent results every time.
CFS Foundry has invested heavily in state-of-the-art facilities to ensure that we can provide the best possible service to our clients. We have a range of advanced equipment, including induction furnaces, gravity casting & die casting machines, and CNC machines, that allow us to produce high-quality aluminum castings quickly and efficiently.
At CFS Foundry, quality is a top priority. We have a rigorous quality control process in place to ensure that every casting we produce meets the highest standards of quality and accuracy. We use advanced testing equipment, such as spectrometers and X-ray machines, to ensure that the castings meet the required specifications.
CFS Foundry understands that every project is unique, and we offer a range of customization options to meet the specific needs of our clients. We can produce aluminum castings in a range of sizes and shapes, and we offer various surface finishes and coatings to meet specific requirements.
CFS Foundry offers competitive pricing for our aluminum casting services. We well know the importance of keeping costs under control, and we work closely with our clients to ensure that we deliver high-quality castings at an affordable price.
Types of Aluminum Casting
High Pressure Die Casting
High pressure aluminum die casting is a manufacturing process in which molten metal (aluminum) is injected with a die casting machine under force using high pressure into a steel mold or die to form products. Precisely formed aluminum parts requiring a minimum of machining and finishing can be produced through this casting method. High pressure aluminum die casting is mainly used for thin wall thickness aluminum products with high volume production.
Low Pressure Die Casting
In the low pressure die casting process the metal is transferred from an air tight furnace through a rising tube into a metallic tool. The casting temperature is about 750°C. Low pressure aluminum die casting is competitive casting method when the production quantity is relatively small and/or when heat treatment is needed to improve the mechanical properties. The tolerances and the surface finish are the same as achieved by gravity die casting. The tooling costs are somewhat higher than by sand casting. For its low pressure, this manufacturing process is more suitable for thick aluminum products, even small volume is feasible.
Gravity Die Casting
Aluminum gravity die casting involves molds and cores of steel or other metal. Molten aluminum is usually poured into the mold, although a vacuum is sometimes applied. Aluminum gravity die castings can be made stronger than either die or sand castings. Aluminum gravity die casting is also named as aluminum gravity casting in China . Semi-permanent mold casting techniques are used when permanent cores would be impossible to remove from the finished part.
Sand Casting
Sand casting is the most versatile method for producing aluminum products. The process starts with a pattern that is a copy of the finished casting. Virtually any pattern can be pressed into a fine sand mixture to form the mold into which the aluminum is poured. The pattern is slightly larger than the part to be made, to allow for aluminum shrinkage during solidification and cooling. As compared to die and permanent mold casting, sand casting is slow process but usually more economical for small quantities, intricate designs or when a very large casting is required.
Common Aluminum Casting Alloys
There’re lots of aluminum alloys in market, but not all of them are suitable for casting process. For example, parts made from 6061 aluminum alloys could only be forged or machined to the specification. Common aluminum casting alloys available from CFS Foundry are as follows:
A360
A360 is harder to cast than A380, which is why many die casters avoid it. However, it does offer higher strength at high temperatures, better ductility, and higher corrosion resistance, so you may want to consider this alloy depending on your casting abilities and needs.
ASTM A360 is the aluminum casting alloy mainly suitable for high pressure or low pressure die casting process. This aluminum alloy is often used to produce automobile oil pans, automobile controller shells, 5G communication boxes, motor shells, LED lamp housing and so on.
A380
ASTM A380 is by far the most widely used alloy for pressure die casting process. This type aluminum casting alloy is with good thermal conductivity, pressure bearing, high temperature resistance and easy to be machined. Unlike A356 alloy, it could not be heat treated after casting. It may be specialized for most product applications. Some of the uses of this alloy include electronic and communications equipment, automotive components, engine brackets, transmission and gear cases, appliances, lawn mower housings, furniture components, hand and power tools.
ADC12 (ASTM A383)
ADC12, also known as ASTM A383, is a common aluminum alloy used in die casting process. In China, due to its ease of casting and excellent mechanical properties, ADC12 aluminium is more often used as an alternative of A380 aluminium to creat highly intricate parts .
This material is commonly used in a large number of aluminum die castings such as furniture, valves, machinery, power tools, engine brackets, etc.
Aluminum Casting Surface Finishes
| Surface Finish Type | Image | Description |
| Shot Blasting |  | Shot blasting is a similar process to sandblasting, but it uses small metal pellets instead of sand to create a textured surface. This can be used to create a matte or slightly rough finish on aluminum castings. |
| Sand Blasting |  | Sandblasting involves using a high-pressure stream of sand or other abrasive material to clean and texture the surface of aluminum castings. This can be used to create a matte finish or to prepare the surface for other finishing options. |
| Powder Coating |  | Powder coating involves applying a dry powder to the surface of aluminum castings, which is then cured using heat to form a durable and attractive finish. |
| Anodizing |  | Anodizing is an electrolytic process that creates an oxide layer on the surface of aluminum castings. This oxide layer can be dyed to achieve a range of colors and provides a durable and corrosion-resistant finish. |
| Electroplating |  | Involves the coating of cast aluminum parts with another metal (such as chrome, zinc, or nickel) through an electrochemical process. Electroplating can enhance appearance, corrosion resistance, and surface hardness. |
| Painting |  | Painting is a common surface finish option that can be used to achieve a range of colors and finishes. Aluminum castings are typically first primed and then painted with a topcoat to achieve the desired finish. |
| E-Coating |  | A surface finishing technique that uses charged paint particles to coat cast aluminum parts. It’s widely used for its ability to coat complex shapes uniformly and protects cast aluminum parts from adhesion and corrosion. |
The Benefits of Aluminum Casting
Aluminum casting is especially important in the manufacturing industry for commercial and industrial products. Therefore, let’s share with you the advantages of aluminum casting.
- Aluminum casting can allow the attainment of complex designs and forms for die cast parts. This means that manufacturers can easily order customized castings that will be suitable for their production needs.
- Aluminum casting allows producers to manufacture parts at an extremely higher and faster rate than other alloy materials. Aluminum die casting can also achieve near net shape so the process of machining can be eliminated to produce finished parts.
- Aluminum castings have the strength of steel but very lightweight. The appearance and aesthetic value of aluminum parts are also superior to other metal alloys. However, aluminum die cast parts are cheaper so end consumers can get high quality metal products at very affordable prices.
- Lastly, castings made from aluminum are versatile, corrosion resistant, and can be used for different purposes. These qualities allow manufacturers to produce multiple products using aluminum parts. The finished products also have longer lifetimes thus giving consumers more value for their money.
In addition to the advantages discussed, aluminum casting also offers other advantages over other casting materials. For example, aluminum has a low melting point, which makes it easier and less expensive to cast compared to other metals such as steel. Additionally, aluminum is a readily available material, which makes it easy to source for manufacturers.
Despite its many advantages, aluminum casting does have some limitations. One limitation is the cost of the equipment required for the casting process. The equipment needed for aluminum casting can be expensive, which may make it cost-prohibitive for smaller manufacturers. Additionally, aluminum casting can be a complex process that requires specialized knowledge and expertise.
To overcome these limitations, some companies choose to outsource their aluminum casting needs to specialized casting companies like CFS Foundry. CFS Foundry has the necessary equipment and expertise to produce high-quality aluminum castings efficiently and cost-effectively.
Gallery of Cast Aluminum Parts
Aluminum Casting Applications
Automotive Industry
To decrease the weight of vehicles, automotive manufacturers are replacing steel material with aluminum material. Besides light weight, aluminum casting can meet the demand of high strength for automotive industry as well. Aluminum foundries are continously optimizing their casting methods possible to simplifly the manufacturing process to offer a reasonable price for each cast aluminum automotive part.
Lighting Industry
The durability and reliability of aluminum casting makes it ideal for lighting use. Cast aluminum light is non-toxic, lightweight, and corrosion resistant. The popular aluminum casting methods for lighting production is gravity die casting and pressure die casting, which is relatively economical and time saving. The ease of production, weight of the final product, and exceptional resilience all make aluminum casting popular for lighting industry.
Aerospace Industry
Due to its light weight and good corrosion resistance, cast aluminum components are widely used in the aerospace industry, which accounts for approximately 80% of the structure of an aircraft. Aluminum casting is applied in aerospace after Second World War, it show great advantages that is demands by this industry.
Marine Industry
In addition to cast stainless steel, cast aluminum is popular in creating marine hardwares as well. Common cast aluminum marine parts are: cleats, handles, brackets, covers, and so on. Marine hardwares cast from aluminum is always corrosion resistant and last long.
Agricultural Machinery
Die casting is an excellent manufacturing method for producing intricate metal Similar to automotive industry, aluminum casting can also creat some significant components for agriculture machines. Typical cast aluminum parts for agriculture are: crankcase housings, gearbox housings, and motor housings, etc. Of course, considering the cost saving, most agricultural components are produced in cast steel.
Heat Sinks
Heatsinks are commonly used for electronic products which can effectively remove heat. Considering heatsinks are relatively thin and complex, they are general produce by aluminum die casting process, which can minimize machining, save production cost and improve the production speed. CFS Foundry can cast aluminum heatsinks to each drawing’s specification and design.
Aluminum Casting FAQs
Cast aluminum refers to aluminum that has been formed into various shapes through casting process. When the parts are difficult or impossible with other manufacturing techniques, they can be made from casting process, which involves melting aluminum and pouring it into molds in order to form the desired shapes. Cast aluminum is always lightweight yet strong, which makes it popular for various applications.
Aluminum is a preferred metal material for casting manufacturing. This is due to its multiple advantages, including good corrosion resistance, high strength and low-density properties. Therefore, aluminum casting is an ideal solution for many industrial components.
As the top aluminum casting company in China, CFS Foundry can offer good quality products with competitive prices. All the cast aluminum parts are produced under strict quality control. There is no need to worry about the quality issue once cooperating with CFS Foundry. And we can provide convenient shipment either by air or by sea.
Usually, it will take us around 30 working days to finish the mold and samples, and another 40-50 working days for aluminum casting mass production.
Aluminum Casting Articles
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