Investment casting has become one of the important means of lightweighting

Lightweight automobiles are still an important means to improve operational stability, power performance, and reduce costs. The use of castings instead of traditional automotive body parts has brought a new technological innovation route for the development of automotive lightweighting. This technological route is mainly achieved from three aspects: the substitution of new casting materials, the lightweight design of casting structures, and casting processes.

As a representative of casting technology, investment precision casting has become one of the important means of lightweighting. The process flow determines its one-piece molding, with minimal allowance, greatly reducing the weight caused by automotive connectors. While reducing weight, it can also improve the rigidity and strength of the entire vehicle. It can ensure high dimensional accuracy when manufacturing complex thin-walled parts, which often makes it the primary process for manufacturing important structural components in countries such as Europe and America. The workpieces produced by precision casting are widely used in aviation parts, automotive components, and airborne equipment due to their high dimensional accuracy, low surface roughness, and superior mechanical properties.

At present, although the technological level of precision casting technology in China has maintained rapid development and significant progress, there are still many unavoidable problems that need to be solved with the continuous innovation of technology.