Sand Moulding:

 Moulding Processes

Sand moulding is possibly the most commonly utilized casting platform during the entire casting industry, worldwide. Simply, there is a bottom, a top and a middle portion of a mould. The pattern, or an impression device, sits in the middle of the mould, and afterwards is surrounded with sand. These are the fundamental, universal casting components that can be applied to all of casting processes.

The bottom and top of the pieces of the mould form the flask. The flask assembly, the bottom and top, "holds the entire assembly together". The topmost or upper section of the flask of the mould (flask) is known the cope, when the bottom of the mould (flask) is known the drag. In the middle, the impression device is known as the pattern. The sand around the pattern is known as the holding medium. The mould maker utilizes the pattern to create the impression in the sand. After that the pattern is set aside. At that point, moulder closes the drag and cope, making the mould. What is wished is the void left from the impression of the pattern, inside the mould, in middle of the sand so that the void is filled up with a molten material.