The main difference between five axis machining and four axis machining lies in the degree of machining freedom and machining accuracy. Five axis machining has higher degrees of freedom and precision, and can be applied to more complex machining tasks. 1. Degree of freedom in machining: Five axis machining has higher degrees of freedom than four axis machining. In five axis machining, complex machining operations can be performed by rotating one or more axes to align the tool with any angle of the workpiece. In contrast, four axis machining has relatively lower degrees of freedom and can only change the angle of the tool by rotating one axis. Processing accuracy: Due to the higher degree of freedom in five axis machining, it can perform more complex machining operations on workpieces, so the accuracy of five axis machining is usually higher than that of four axis machining. In addition, there are some differences between five axis machining and four axis machining in terms of programming, equipment structure, and application scope. For example, programming for five axis machining is more complex than for four axis machining, requiring more calculations and control; The equipment structure for five axis machining is more complex than that of four axis machining, requiring more sensors and control components; The application scope of five axis machining is wider than that of four axis machining, and it can be applied to more complex machining tasks.