Five-axis CNC Machining means that the machine tool can be positioned and connected on five degrees of freedom to add parts with complex geometric shapes to the tool. This machining method can process different sides of the workpiece without changing the position of the workpiece on the machine tool, thereby improving the machining efficiency of prismatic parts. In five-axis cnc machining, the following problems may be encountered: 1, the workpiece produces a taper size head phenomenon: It may be due to the poor adjustment of the machine tool placement level, resulting in unstable placement, or it may be due to inconsistent material hardness and tool wear when cutting the long axis. 2. The processing arc effect is not ideal and the size is not in place: This may be due to the overlap of vibration frequencies leading to resonance and machining process, unreasonable parameter setting leads to excessive feed speed, which makes circular arc machining out of step, or loosening or loosening caused by too tight leads to synchronous belt wear. 3. Each process of the workpiece has an increase or decrease phenomenon: This may be due to programming errors, unreasonable system parameter setting or improper configuration setting, or regular periodic changes in mechanical transmission components. 4. Short tool life: In the five-axis machining process, the tool needs to withstand more force and pressure, resulting in faster tool wear.