The forming process of metal materials includes forging, stamping and casting. The molding process of nonmetallic materials includes injection molding, blow molding and casting.

Compared with the forming of metallic materials, the forming of nonmetallic materials has the following characteristics:

1) Non-metallic materials can be molded in liquid or solid state. The forming methods are flexible and diverse, and parts with complex shapes can be manufactured.

2) Non-metallic materials are usually formed at a lower temperature, and the former

Art is simpler.

3) The molding of nonmetallic materials is generally combined with the production process of materials.