Tell you what is called casting?

Casting is a process in which a metal is smelted into a liquid that meets certain requirements and poured into a mold, and cooled, solidified, and cleaned to obtain a casting having a predetermined shape, size, and performance. Casting blanks are nearly shaped, and they are free of machining or small amounts of processing, reducing costs and reducing time. Casting is one of the basic processes of the modern manufacturing industry.