07西安工业大学函授部二00九年1数控技术是当今世界制造业中的先进技术之一，它涉及到计算机辅助设计和制造技术，计算机模拟及仿真加工技术，机床仿真及后置处理，机械加工工艺，装夹定位技术与夹具设计与制造技术，金属切削理论，以及毛坯制造技术等多方面的关键技术。数控技术及数控机床在当今机械制造业中的重要地位和巨大效益，显示了其在国家基础工业现代化中的战略性作用。数控技术是发展数控机床和先进制造技术的最关键技术，并已成为传统机械制造工业提升改造和实现自动化、柔性化、集成化生产的重要手段和标志，应用数控技术是提高制造业的产品质量和劳动生产率必不可少的重要手段。数控机床作为数控技术实施的重要装备，成为提高加工产品质量，提高加工效率的有效保证和关键。数控技术及数控机床的广泛应用，给机械制造业的产业结构、产品种类和档次以及生产方式带来了革命性的变化。制造业快速发展和产业结构调整，使我国从传统的机械制造转变为现代的数控制造，数控机床是现代加工车间最重要的装备。它的发展是信息技术(1T)与制造技术(MT)结合发展的结果。现代的CAD/CAM、FMS、CIMS、敏捷制造和智能制造技术，都是建立在数控技术之上的。掌握现代数控技术知识是现代机电类专业学生必不可少的。本次论文内容介绍了数控加工的特点、加工工艺分析的一般步骤。并通过一定的实例详细的介绍了数控加工工艺的分析方法。关键词：数控技术机械制造加工工艺编程2···············································31.1零件图的工艺分析··························································································································31.2加工方法的选择······························································································································41.3工序的划分·······································································································································71.4定位与夹紧方式的确定··················································································································71.5加工顺序的安排······························································································································71.6确定走刀路线和工步顺序····························································································ぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁ?71.7切削用量的选择······························································································································161.8对刀点与换刀点的确定··················································································································171.9高速切削加工技术··························································································································17·······························192.1数控