Forging and casting are often selected processing methods in instrument processing, and today I will share with you the difference between the two.
1. Casting is to change a shapeless liquid metal into a solid shape, forging is to change a solid shape into another solid shape. Casting is the process by which molten metal is poured into a mold to obtain a casting, while forging is the plastic forming of a solid state. Casting is like playing with wax. When a candle is melted and put into a mold of different shapes, different shapes of candles are obtained. It is a process from solid to liquid and then to solid. Forging is just like the process of making flatbread. The dough is kneaded and pressed and put into molds to make products of different shapes. It is a process from solid to solid.
2. Casting is a molding, forging is slowly forming. As mentioned above, casting is to fill the cavity with molten liquid metal, which can be formed once after cooling, but it is easy to produce pores in the process of making parts; Forging is formed several times by extrusion at high temperatures, in which the grains in the workpiece can be refined.