Turn-mill compound machining represents a highly efficient solution for modern manufacturing. Its core advantage lies in the ability to complete multiple processes—such as turning, milling, drilling, and tapping—in a single setup. This significantly shortens production cycles and reduces non-productive time, leading to a remarkable increase in machining efficiency. Moreover, by eliminating cumulative errors caused by repeated clamping, it ensures excellent coaxiality and positional accuracy, resulting in higher-quality machined parts. Additionally, this method reduces the need for specialized fixtures and multiple machines, saving both floor space and labor costs. It is particularly suitable for manufacturing complex, high-precision components in one piece—commonly required in industries such as aerospace and automotive—making it a key technology for enhancing competitiveness.