With the continuous maturity of 3D printing technology and the continuous breakthrough in material application science, it is now possible to directly apply printed plastic or metal parts to automobile production. The working principle of 3D printing additive manufacturing has a unique advantage in the production of complex structural parts. That is to say, the more complicated the shape and structure of the parts, the more advantageous it is to manufacture by using 3D printing, such as the spool box of the automatic transmission, the planetary gear set, and the like.
The production of lightweight structural parts is the general trend under the goal of energy saving and consumption reduction in the automobile production industry. The automobile parts produced by using titanium alloy and other materials through integral molding and printing not only increase the structural strength of the automobile parts, but also greatly reduce the weight of the automobile. It is this key advantage that makes the application of 3D printing technology in the field of racing more mature and has begun to enter the field of conventional automobile manufacturing.