自数控机床问世以来,发展迅速,更迭频繁,第五代数控即微型计算机数控(MNC)系统早已用于生产。微型计算机性能稳定可靠、存贮容量大、运算速度高、小巧价廉,赋予了数控机床新的活力,目前已实现“软件数控”(即MNC系统=“软化”了的硬件数控)、微机自动编程等。然而,如何充分发挥MNC潜力以提高加工质量和生产率,探索微机对机械加工科学发展前景的影响等 Since the advent of CNC machine tools, rapid development, frequent changes, the fifth generation of CNC micro-computer (MNC) system has long been used in production. Micro-computer performance is stable and reliable, large storage capacity, high speed, small and inexpensive, giving the new vitality of CNC machine tools, has now achieved “software NC” (ie MNC system = “softened” hardware NC) Programming and so on. However, how to give full play to the potential of MNC to improve the processing quality and productivity, to explore the impact of microcomputer on the prospect of machining science development, etc.