In the processing of complex cavity molds, the turning milling composite technology completes multiple processes such as turning, milling, and drilling through a single clamping, effectively avoiding cumulative errors caused by multiple clamping. Especially for the manufacturing of precision injection molds and die-casting molds, the five axis linkage turning milling composite center can perfectly cope with the processing challenges of complex geometric features such as deep cavities and narrow grooves, and can shorten the manufacturing cycle by more than 40% compared to traditional processes.