Aluminum Casting Process Guide
Aluminum castings need to be made in a way that prevents porosity. In the process of production, it is necessary to take effective measures to minimize the moisture of the raw material. In the process of aluminum casting, it is necessary to choose the casting process reasonably and strengthen the melting quality management effectively. Aluminum casting pinhole defects Under production conditions, aluminum alloy castings will form tiny cavities when solidifying, called pinholes. Pinholes are usually distributed throughout the section, especially in the thick part of the casting where the solidification speed is slow. Pinholes reduce the actual force area of the component and may become a source of cracking, and destroy the continuity of the material, reducing the strength and plasticity of the casting, at the same time, pinholes also affect the corrosion resistance and anodic oxidation properties. Therefore, in aluminum castings , especially for the aerospace industry, aluminum alloy