This is a method of using a machine that has the machining functions of both a 3-axis NC lathe and a machining center. In the past, single-function machines capable of lathe turning and machining were used separately, but with this multifunction machine, one machine can perform multiple processes. As a result, it is possible to consolidate processes, shorten setup time, and achieve high efficiency. Since AeroEdge processes turning and 3D machining with a multifunction machine, it is possible to suppress mounting errors and processing mismatches, which are bottlenecks in normal processing.