What is Squeeze Casting?

Squeeze Casted

What is Squeeze Casting?

Squeeze casting as liquid-metal forging, is a process by which molten metal solidifies under pressure within closed dies positioned between the plates of a hydraulic press. The applied pressure and instant contact of the molten metal with the die surface produce a rapid heat transfer condition that yields a pore-free fine-grain casting with mechanical properties approaching those of a wrought product. The squeeze casting process is easily automated to produce near-net to net shape high-quality components.

Process Characteristics

The squeeze casting process, combining the advantages of the casting and forging processes, has been widely used to produce quality castings. Because of the high pressure applied during solidification, porosities caused by both gas and shrinkage can be prevented or eliminated. The cooling rate of the casting can be increased by applying high pressure during solidification, since that contact between the casting and the die is improved by pressurization, which results in the foundation of fine-grained structures.

1) Refined Inner Grain Structures

Refined Inner Grain Structures

2) Less Gas Volume and Shrinkage Porosity - Die Casting VS Squeeze Casting

Die Casting vs Squeeze Casting

3) The parts could have high density and hardness value after T6

High density and hardness

Process Advantages

1) Good roughness like die casting & precision casting
2) Parts with high-accuracy like die casting & precision casting
3) No more material costs and extra machining, better than forging
4) Can be T6 treatment, better than die casting, and like forging
5) Parts with High Sealing Property
6) High mechanical property like forging, and better than investment casting or sand casting

Comparison between different processes:

Comparison between processes

Squeeze Casting Parts’ Mechanical Property

After T6, the mechanical property of squeeze casting parts could be very high.

Mechanical property comparison of the squeeze casting parts from different materials:

Mechanical Property

Note: Tested pieces cut from casting parts. The data of test bar will be higher.

Test Report

Wide Application

With the current emphasis on reducing materials consumption through virtually net shape processing and the demand for higher-strength parts for weight savings, the emergence of squeeze casting as a production process has given materials and process engineers a new alternative to the traditional approaches of casting and forging. By pressurizing liquid metals while they solidify, near-net shapes can be achieved in sound, fully dense castings.
Squeeze casting is simple and economical, efficient in its use of raw material, and has excellent potential for automated operation at high rates of production. The process generates the highest mechanical properties attainable in a cast product. The microstructural refinement and integrity of squeeze cast products are desirable for many critical applications.

Application Range

Application Range

The Materials can be used for squeeze casting is including-Aluminum alloy(T6), Zinc alloy, Al-am alloy, Al-li alloy and so on.

Developed Examples

Developed Example
  • Simulated the limited conditions by CAE Analysis, we can obtain the stress points, the displacement, and then we can optimize the design of part’s structure.
  • Simulated the casting by CAE Analysis, we can know more about the melting filing, temperature field, solidify, and the defection like shrinkage porosity, thus we can optimize the tooling design and reduce test times, then to improve the production pass rate.
CAE Analysis
Squeeze Casted Parts