摘要
分析西门子840D 数控系统的特点，对复杂，畸形工件进行加工，通过实践总结出西门子840D 系统各程序的兼容，更好的发挥数控程序的作用，以便提高生产效率。
analysis of the characteristics, Siemens 840D NC system of complex, deformity of the workpiece processing, summarizes through the practice of each program Siemens compatible 840D system, better play the role of NC program, in order to improve production ef iciency.
