Casting is a process in which a molten metal liquid is poured into a mold and cooled to solidify to obtain a desired shape and performance. Casting is a common manufacturing method, with low manufacturing cost and high process flexibility. It can obtain complex shapes and large castings, and it occupies a large proportion in mechanical manufacturing, such as machine tools account for 60-80%, cars account for 25%, and tractors account for 50 to 60%.
Due to the improvement of casting quality, casting precision, casting cost and casting automation, casting technology is developing in the direction of precision, large-scale, high-quality, automation and cleanliness. For example, in China, precision casting technology and continuous Casting technology, special casting technology, casting automation and casting molding simulation technology have developed rapidly.