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ＮＣ冲床加工程序的编制与检验是一种繁重的费时费力的工作，严重地影响着ＮＣ冲床的效率．本文利用制件形状特征建模，建立含多种信息的数据库，从而形成了具有刀路动画仿真功能的自动编程系统．
NC punch press preparation and testing procedures is a cumbersome and time-consuming work, seriously affecting the efficiency of NC punch. In this paper, we use the shape feature modeling of parts to build a database with many kinds of information, and form an automatic programming system with the function of toolpath simulation.