There are so many metals in the world that not all of them can be used in their raw form. In fact, most of the metals are liquefied and then used after moulded or going through a process of metal castings or else sold to the companies who use the metal for making other essential products. Many metals are first converted into alloys by adding two or more element to it.
The process of metal casting is a detailed one. It involves several processes and each of the process is very essential. Any disturbance in one step would lead to the formation of defect in the metal cast.
The casting involves a lot of specially built equipment which can help to moulder rather say cast the metal perfectly. The main thing that is required is the furnace to heat up the metal to its melting point and make it a liquid. Then it is transferred to another container where it is allowed to cool a bit before it is transferred to the casting moulds.
Once the liquid metal is poured into the casting mould, the liquid metal takes the shape of the mould and solidifies in a similar form.