Category: Casting And Welding

A model of mould used in sand casting is shown in Figure 20.2. Moulding material that is packed around the pattern to provide the mould cavity is green sand. The various parts of mould can be defined as follows: Figure 20.2 A Model of Mould Used in Sand Casting Flask: It is a rigid box which opens at top…

Casting process can be classified on the basis of expandable mould and multiple-use mould as shown in Figure 20.1. Expandable mould is destroyed after solidification of the casting. But, multiple-use mould can be used to make many castings. Expandable mould is used for very complicated casting design. In this process, production rate is lower than the multiple-use…

Casting is an ancient manufacturing process. It had been used during 4,000–5,300 B.C. for manufacturing of copper arrowheads. In the field of casting, a number of modern technologies have been developed such as die casting, permanent mould casting, vacuum casting, continuous casting, electromagnetic casting, etc., but sand casting is one of the oldest casting technologies…