Casting

Casting

Casting is the process of pouring molten metal into molds with specific shapes and solidifying it. Steel scrap, various pig irons, and alloys are melted at high temperatures and transformed into steel, pig iron, spheroidal graphite iron, and temper cast products.  

The casting process is completed by pouring the molten material into pre-determined molds. The molds used in casting can be made of sand, plaster, ceramic, or metal. There are permanent and expendable molds; metal molds can be used multiple times. 

Casting types are examined under two main categories: expendable and permanent molds. Expendable molds include sand, ceramic, and plaster molds. Permanent molds include metal (die) molds, centrifugal, pressure, and continuous casting methods. The most common casting method is sand casting. 

Main types of casting:

Precision casting: Complex parts are obtained cleanly and accurately. 
Continuous casting: The metal is solidified by cooling with water. 
Centrifugal casting: Casting is done using centrifugal force. 
Die casting: Casting is done using metal molds. 
Pressure casting: Preferred for light metals.
Plaster casting: Used for casting light alloys. 
Each casting method is suitable for different metals and applications.