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Aluminum Squeeze Casting for High Strength Pore-Free Aluminum Castings
Enhancing Mechanical Performance and Reducing Costs

What Problems Can Be Addressed Through Aluminum Squeeze Casting?

Do your aluminium die castings have many common defects such as porosity and shrinkage?

Are your die castings suffering from leaks, fractures, reduced life and increased failure rates as a result of the above defects?

Do you have a headache because of the cost of aluminium forging is too high and are trying to find a process that can replace forging and reduce costs, while remaining similar strength?

As a manufacturer with more than 25 years of experience in aluminium die casting, we have found the solution to these problems–Our patented aluminum squeeze casting process.

Our aluminium squeeze casting parts can eliminate defects such as porosity and shrinkage and have a dense internal organization.

Can be heat treated to further improve strength and mechanical properties to the level of forging.

Can be welded to avoid the inability to weld caused by internal porosity of traditional die castings.

Can withstand certain pressure to ensure airtight performance.

Our Capabilities

CEX started to research and develop squeeze casting process since 2015. As a China professional squeeze casting manufacturer, we have one squeeze casting manufacturing base with patented squeeze casting process and equipment.

From the mould design to the process parameters determination and product refinement, all these steps reflect the rich experience and wisdom of our engineers. The products we have developed have been used in various fields and have helped many customers to improve the mechanical properties of their products and significantly reduce their production costs.

Our Squeeze Casting Machines:  300T~1100T

Material Normally Used: A356/A356.2/A380

Weight: 50g~20kg 

Maximum Size: 1.2m*0.8m

Wall Thickness: 4mm-15mm

Tolerance: blank  ±0.2mm,  ±0.05mm  after machining


The Advantages of Squeeze Casting Compared to Die Casting

Squeeze casting is a more advanced process than conventional aluminum die casting.

The squeeze casting process can eliminate defects that exist in the traditional die casting process such as porosity and shrinkage, and the internal structure of the casting is more dense. Heat treatment and welding is acceptable.

Better Mechanical Properties: the strength of the heat-treated squeeze castings is significantly higher and can reach strengths close to those of forged aluminum parts.

Better Sealing Performance: because of the presence of pores is eliminated, the surface of the squeeze castings can be machined to a very high finish, free of pore defects, thus ensuring excellent sealing performance without causing leaks.

Can Be Welded: conventional aluminum die castings often contain microscopic pores and voids within the material. these porosity can act as potential weak points and can lead to defects and reduce weld integrity. Squeeze casting parts without pores can avoid this problem.

The Advantages of Squeeze Casting Compared to Forging

Squeeze casting is also called liquid die forging, but the feeding method and forming process are very different from forging. Compared with the conventional forging process, squeeze casting has many advantages over forging and can be used as an alternative to forging to obtain high strength aluminum parts.

Close Mechanical Properties: after heat treatment, squeeze casting parts can achieve high mechanical strength, close to the strength of aluminum alloy forging.

Better Forming Ability: better forming capability. Squeeze casting can form complex structures in one piece as well as conventional die casting in terms of forming capability. Compared to forging, the workload of secondary processing can be greatly reduced. There are many products with complex structures that cannot be produced by forging and secondary processing. For such high strength and complex structure products, squeeze casting can be used.

Lower Costs: squeeze casting can significantly reduce the production cost of aluminum parts because it greatly reduces the amount of secondary processing. It has a very obvious unit price advantage.


The Advantages of Squeeze Casting Compared to Sand Casting

Enhanced Mechanical Properties: squeeze casting combines the benefits of both casting and forging processes, resulting in improved mechanical properties compared to traditional sand casting. The controlled solidification under pressure leads to finer grain structure, increased strength, and improved fatigue resistance.

Near-Net Shape: squeeze casting allows for the production of near-net shape components, reducing the need for extensive machining and material waste. This results in cost savings and improved material utilization.

Forming Capabilities: the squeeze casting process enables the production of complex shapes with intricate details and thin walls, resulting in superior forming capabilities and higher-quality castings compared to sand casting.

High Production Efficiency: squeeze casting is a highly efficient process as it combines the casting and forging steps, reducing the overall production time and cost.

Good Surface Finish: the controlled solidification in squeeze casting helps in achieving a smoother surface finish, reducing the need for additional surface treatments or finishing operations.

Our Developed High Strength Aluminum Castings

CEX Casting is a China leading squeeze casting manufacturer. Our squeeze casting service helped many companies to improve the mechanical properties of different parts. Those squeeze cast products have better mechanical characteristics than conventional castings because of their higher density, finer scale of grain and, more uinform micro structure.

Material : A356.2
Heat Treatment : T6
Reducing machining process, saving at least 40% of the costs.
Material : A356.2
Heat Treatment : T6
Replacing steel casting, reducing at least 54% of the weight.
Material : A356.2
Heat Treatment : T6
Replacing traditional die casting, increasing 50% of the strength.
Material : A356.2
Heat Treatment : T6
Replacing sand casting, can be welded, increasing 50% strength and 800% production efficiency.
Material : A380
Heat Treatment : no need
No porosity inside to meet high resistance and air tightness, could be tested to at least 140PSI .
Material : A356
Heat Treatment : no need
No porosity pits, dents and scratches on entire surface, could meet high resistance and air tightness.
Material : A319
Heat Treatment : no need
No porosity pits, dents, scratches and other defects on entire surface of the part.
Material : A356.2
Heat Treatment: T6
Replacing traditional die casting, increasing at least 50% of the strength.
Material : A356.2
Heat Treatment : T6
Replacing traditional die casting, increasing at least 50% of the strength.
Patented Aluminum Squeeze Casting Machine and Process

We are at the forefront of the industry in aluminum squeeze casting, and our leading position can be attributed to our in-house research and development team. We have developed and manufactured our own equipment, process parameters, and moulds specifically for aluminum squeeze casting. This ensures our absolute competitive advantage in this technology.

Quality Assured - Every Component, Every Order, Every Time

We strictly adhere to the quality control requirements of the ISO 9001 and IATF 16949 systems for our squeeze casting parts. From raw materials to finished products, from initial samples to large-scale production, every step of our process undergoes rigorous quality testing.


Different from traditional aluminum die casting parts, the quality control of aluminum squeeze casting parts is mainly reflected in mechanical properties and internal structure.

We mainly test and control the following aspects:

Strength: Tensile Strength, Yield Strength

Density, Hardness

Sealing Properties

Internal Porosity

We have accumulated a wealth of experience in testing and controlling these properties.

Coordinate Measuring Machine (CMM)
Tensile Strength Tester
Hardness Tester
Granite Measuring Table 1200×1000/ 1000×750 (mm)
Digital Height Gauge 0-600(mm)
Full Range Vernier Calipers, 0-100-150-200-300-600-1000(mm)
Outside Ddiameter Micrometer / Inside Diameter Micrometer
Full Range Pin Gauge/Gauge

Squeeze Casting Process Characteristics: Eliminating Porosity, Improving Mechanical Properties

Because of the specially designed tooling and process parameter, porosities caused by both gas and shrinkage can be prevented or eliminated in the squeeze casting process.

The cooling rate of the casting can be increased by applying high pressure during solidification, the contact between the casting and the die is improved by pressurization, which results in fine-grained structures.

The biggest advantage of squeeze casting process is that the castings could be heat treated to achieve improved mechanical properties.

After T6 heat treatment, the mechanical property of the squeeze casting parts could be much higher.

tensile strength logo
Tensile Strength
260-320 MPa
yield strength logo
Yeild Strength
220-260 MPa
hardness logo
80-110 HB
density logo
2.7-2.72 g/cm3

What Is Squeeze Casting

Squeeze casting, also known as liquid die forging, is types of casting process in which molten metal solidifies under pressure within closed dies positioned between the plates of a hydraulic press.

The pressure applied and the instant contact of the molten metal with the die surfaces produces a rapid heat transfer, which yields a pore-free, fine-grained casting with mechanical properties similar to those of a wrought product.

The squeeze die casting process is easily automated to produce near-net to net shaped, high-quality casting products.

Types of Squeeze Die Casting

There are two types of squeeze casting processes: direct squeeze casting and indirect squeeze casting. The difference between the two types is how the high pressure applied to the molten metal.

Direct Squeeze Casting

Direct squeeze casting is a process in which the molten metal is poured directly into the mould cavity and pressure is introduced when the top punch is lowered into the bottom die.

This process is much like forging and that is why squeeze casting is also called liquid forging.

Direct squeeze casting is a process in which the molten metal is poured directly into the mould cavity and pressure is introduced when the top punch is lowered into the bottom die.

This process is much like forging and that is why squeeze casting is also called liquid forging.

Indirect Squeeze Casting

Indirect squeeze casting is a process in which the molten metal is injected into the cavity from a plunger.

The pressure is applied by the plunger in the indirect squeeze casting.

Squeeze Casting Material We Use

We use A356/A356.2/A380 for aluminum squeeze casting.



Why Squeeze Castings Are Superior Than High Pressure Die Castings?
  • Can Achieve Zero Internal Porosity with High Air Tightness
  • Available for T6 Heat Treatment
  • Increase Mechanical Strength by At Least 50%
Why Squeeze Casting Can Replace Hot Forging?

After T6 treatment, the squeeze casting parts have the same mechanical properties as forged parts:

  • Yield Strength: 220-240Mpa
  • Tensile Strength: 260-300Mpa
  • Hardness: 80-90Hb
  • Density: 2.72g/cm³
  • Elongation: 4.5-6%

In addition, compared with hot forging, squeeze casting process can save at least 40% post machining costs.

Why Squeeze Casting Can Replace Steel Casting?
  • Maintain Same Strength as Steel Casting
  • Reduce Weight by At Least 50%
Could You Provide In-House Tooling?

Yes. All squeeze casting moulds and toolings are developed and manufactured by ourselves.


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