In the process of surface machining, the tool path is one of the key factors affecting cutting efficiency and machining quality; different tool path characteristics and application ranges are different, and the machining accuracy obtained is also different, that is, rough machining and finishing. Finish its curved surface processing.

Curved surface roughing: During surface roughing, medium-high profile roughing has a significant effect on complex curved surfaces. For rough surface grooving, due to simple operation, short tool path generation time, and uniform cutting force on the tool, ensure that everything is done as much as possible during processing. The margin is uniform; minimize the number of tool changes and the number of jumps between processing areas; ensure that the tool and the machine spindle are not overloaded.

Surface finishing: During finishing, the height of the tip is the primary factor that determines the surface finish of the processed surface. When the tip height is 0.0005～0.002mm, a better surface finish can be obtained. A, The tool path of the parallel finishing surface is parallel striped, without layered control in the depth direction, pay attention to grasp the processing angle. In most cases, this tool path can cut the best surface finish. C. Contour finishing: The cutting speed of the tool is the same as the direction of the workpiece movement, which can reduce the squeezing between the workpiece and the cutting edge, which is conducive to the cutting of the workpiece and the reduction of tool wear, avoiding the occurrence of overcutting, and reducing the tool resistance, to get good processing quality.