CNC five axis machining is a good machining technique that refers to the coordinated machining of five coordinate axes (including x, y, and z moving axes and A, B, and C rotating axes around x, y, and z axes) on a CNC machine tool. This processing method can process various complex geometric shapes, including curved and inclined surfaces, while also improving processing efficiency and quality. The advantages of CNC five axis machining include: 1, high machining efficiency: due to the linkage of the five coordinate axes, multiple surfaces can be machined in one clamping, reducing clamping times and adjustment time, and improving machining efficiency. 2. Good processing quality: CNC five axis machining can adopt a small cutting depth and large feed cutting method, which improves the smoothness and accuracy of the machined surface. At the same time, due to the ability to complete the processing of multiple surfaces in one clamping, thermal deformation and error accumulation are reduced, further improving the processing quality. 3. Wide processing range: CNC five axis machining can process various complex geometric shapes, including curved and inclined surfaces, expanding the processing range and adaptability. 4. Improving production flexibility: CNC five axis machining can use different tools and cutting parameters for easy changeover and adjustment, enhancing production flexibility and adaptability.