数控机床的产生论文VIP免费

摘要世界制造业转移，中国正在逐步成为世界加工厂。美国、德国、韩国等国家已经进入工业化发展的高技术密集时代与微电子时代，钢铁、机械、化工等重工业正逐渐向发展中国家转移。我国目前经济发展已经过了发展初期，正处于重化工业发展中期。未来10年将是中国机械行业发展最佳时期。美国、德国的重化工业发展期延续了18年以上，美国、德国、韩国四国重化工业发展期平均延续了12年，我们估计中国的重化工业发展期将至少延续10年，直到2015年。因此，在未来10年中，随着中国重化工业进程的推进，中国企业规模、产品技术、质量等都将得到大幅提升，国产机械产品国际竞争力增强，逐步替代进口，并加速出口。目前，机械行业中部分子行业如船舶、铁路、集装箱及集装箱起重机制造等已经受益于国际间的产业转移，并将持续受益；电站设备、工程机械、床等将受益于产业转移，加快出口进程关键词:数控工业化发展刀具机床目录第一章数控机床的产生第二章数控机床的发展2.1数控系统的发展·····························································12.2机床的发展趋势·····························································2第三章数控机床的分类3.1按加工工艺方法分类·······················································43.1.1金属切削类数控机床······································································43.1.2特种加工类数控机床······································································43.1.3板材加工类数控机床······································································43.2按控制运动轨迹分类·······················································53.1.2点位控制数控机床··········································································53.2.2直线控制数控机床··········································································53.2.3轮廓控制数控机床··········································································53.3按驱动装置的特点分类····················································63.3.1开环控制数控机床··········································································63.3.2闭环控制数控机床··········································································73.3.3半闭环控制数控机床······································································73.3.4混合控制数控机床··········································································7第四章数控车的工艺与工装削4.1合理选择切削用量··························································94.2合...