Foundry of 4032 aluminum alloy scrolls using squeeze casting process

To reduce production costs, squeeze casting technology is utilized to manufacture 4032 aluminum alloy scrolls, replacing the back pressure forming (forging) methods. The squeeze casting process is established by using ProCAST software platform. Quantitative predictions are provided for parameters such as gas entrapment, oxide inclusions, shrinkage porosity, and average grain size. For enclosed liquid pockets that form during solidification, localized pressurization is applied to compensate for shrinkage defects in critical regions and large cross-sections of the casting. A straightforward approach is adopted to establish relationships between process conditions and casting defects, as well as the microstructure. Squeeze casting experiments are conducted based on the recommended process parameters, and the overall performance of the scroll casting is evaluated using X-ray, CT, and tensile tests. The results show that the castings are of high quality, free of significant casting defects, and that the mechanical properties meet the relevant standard requirements.