Four factors influencing the quality of aluminum alloy die casting

The quality requirements of aluminum alloy die castings mainly include surface roughness, size, shape, physical properties, mechanical properties and the presence of holes, cracks, inclusions, segregation, wear resistance, corrosion resistance, etc. Then what factors will affect the quality of aluminum alloy die – casting parts?

Four factors influencing the quality of aluminum alloy die casting include:

1. Reasonable casting process

To ensure the high quality aluminum alloy die casting parts, the right kind of split face,  the shape, the core method, the rational setting of the forging, the mouth and the pouring system should be selected based on the structure of the aluminum alloy, the weight and the size of the alloy, the alloy character and the production conditions.

2. Design technology of aluminum alloy die casting

During design, in addition to according to the working conditions and the metal material performance to determine the geometric shape, size, aluminum alloy die casting must also from the Angle of the casting alloy and casting characteristics to consider the rationality of the design, namely the obvious size effect and solidification, shrinkage, stress and other problems, in order to avoid or reduce the composition segregation of aluminum alloy die casting, deformation, cracking and other defects.

3. Quality of raw materials for casting.

The quality of metal charge, refractory material, fuel, flux, modifier and cast sand, sand binder, coating and other materials shall not be as standard, which may cause defects such as porosity, pinhole, slag, sand and other defects in the castings, which may affect the appearance quality and internal quality of the aluminum alloy die casting, which may cause the castings to be scrapped.

4. Process operation

It is necessary to establish reasonable operation procedures for aluminum alloy die casting, improve the technical level of workers and make the process procedures properly implemented.

The above are the important factors that affect the quality of aluminum alloy die castings. The performance and quality of aluminum alloy die castings have a very important relationship with the four factors above.