1. Gypsum mold
Carving and shaping gypsum in a semi wet state, and then drying it to form a mold. Gypsum molds have low cost and are easy to modify, but their accuracy is not high enough, their surface is not smooth, and they are fragile and not durable. Therefore, they are often used as molds for feinting, electroplating copper molds, or some vacuum molds that require small batch production.
2. Aluminum mold
Made from aluminum ingots through mechanical processing such as lathes, milling machines, CNC machines, etc. Aluminum molds have high precision, smooth surface, and durability, but they are very expensive.
3. Heat treated steel
H13 and S136 materials can be processed to HRC42-45 to extend the life of the mold and prevent rust. In addition, hard steels such as DIN1.2316, DIN1.2344, and DIN1.2738 can also be used.
