Because copper, zinc, aluminum, and aluminum alloys possess excellent fluidity and plasticity, and because casting is done under pressure in a die-casting machine, aluminum die castings can be produced in various complex shapes with high precision and surface finish. This significantly reduces the amount of machining required and the casting allowance for copper, zinc, aluminum, or aluminum alloys, saving not only electricity and metal materials but also substantial labor costs. Furthermore, copper, zinc, aluminum, and aluminum alloys have excellent thermal conductivity, low specific gravity, and high machinability. Therefore, die castings are widely used in various industries, including automobile manufacturing, internal combustion engine production, motorcycle manufacturing, electric motor manufacturing, oil pump manufacturing, transmission machinery manufacturing, precision instruments, landscaping, power construction, and architectural decoration.
Die castings can be manufactured into die casting automotive parts, die casting automotive engine pipes, die casting air conditioning parts, die casting gasoline engine cylinder heads, die casting valve rocker arms, die casting valve supports, die casting power accessories, die casting motor end caps, die casting housings, die casting pump housings, die casting building accessories, die casting decorative accessories, die casting guardrail accessories, die casting wheels, and other parts. In the integrated die casting of new energy vehicles, high vacuum die casting technology plays an important role [4]. With the continuous improvement of the development level of domestic manufacturing equipment industry, the equipment level of die casting machines has also been significantly improved, and the types of parts that can be manufactured are constantly expanding. The precision and complexity of the die-cast parts have also been greatly improved.
