The emergence of 3D printing technology has certain advantages in additive manufacturing. At present, 3D printing technology has a very good application prospect in the field of sand casting. First of all, molding and core making are generally regarded as one of the links with high labor intensity and poor production environment in the sand casting industry. Sand mold production using 3DP technology replaces manual operation. All molding processes are carried out in a relatively closed box. Due to the particularity of 3D printing sand mold raw materials, there will be no dust in the printing process, The adhesive added by sand mold hardening is also carried out in a relatively closed box, which reduces the emission to the environment and greatly improves the working environment.
Secondly, the application of 3D printing technology in the field of sand casting omits the link of making molds, which not only saves the production cost, but also improves the speed and flexibility for product trial production. Sand casting enterprises do not have to spend a lot of money to build mold storage workshops and professional mold maintenance personnel.
Thirdly, the application of 3D printing technology in sand casting has greatly improved the dimensional accuracy of products, enhanced the control ability of sand mold size, and become an accurate and controlled link. 3D printing will simplify the sand mold of complex products, reduce the dependence of enterprises on high-tech workers, enhance product quality, and eliminate the subsequent scrapping of products due to dimensional problems. In addition, The precise size control system can finely control the processing volume of products, ensure that a small amount of processing allowance can be reserved during the design of product diced surface, and improve the efficiency of subsequent product processing.
Finally, the application of 3D printing technology in the field of sand casting provides sufficient guarantee for the flexibility of product design. Because 3D printing sand mold is not constrained by the size and shape of the product, the parameters can be changed at any time during the production process for local or overall correction, so as to improve the efficiency of product development and verification.