The principle of determining the machining plan for large-scale CNC machining is also called the process plan, which includes the formulation of processes, steps, and tool paths. During the large-scale CNC machining process, due to the complex and diverse machining objects, especially the ever-changing shapes and positions of contour curves, as well as the influence of multiple factors such as different materials and batch sizes, when formulating a machining plan for specific parts, specific analysis and differentiated treatment should be carried out with flexible handling. Only in this way can the formulated machining plan be reasonable, thereby achieving the goals of high quality, high efficiency, and low cost.
The general principle for formulating a large-scale CNC machining plan is: roughing before finishing, nearby before distant, inside before outside, the least number of program segments, the shortest tool path, and special treatment for special cases.
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