1. To manufacture precision simple molds, traditional machining is usually used to manufacture metal molds or 3D printing is used to directly manufacture metal molds. (Usually used for small batch manufacturing)

2. Preheating and casting: before preheating, plug the vent with ceramic rod, refractory mud and other materials.

3. For precision casting blanks, machining processes mainly include turning, milling, grinding, pliers, drilling, boring and planing, as well as surface treatment, heat treatment, wire cutting and other methods to make the overall dimensions of the workpiece meet the requirements of the design drawings.