In the automotive industry, there is a high demand for the "3+2" form of five axis machining, and some components require five axis linkage machining, such as the turbocharger impeller. In addition to the rigid requirement of complex surface machining, reducing the number of clamping times brings about an improvement in machining efficiency, which also promotes the gradual transition of the automotive industry's five axis demand from "3+2" to linkage five axes.