Dual Drive Curve Tool Path Planning Method for 5-axis NC Machining of Sculptured Surfaces

作     者：徐汝锋 陈志同 陈五一 吴献珍 朱剑军 

作者机构：北京航空航天大学机械工程及自动化学院北京100191 昌河飞机工业集团景德镇333000 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2010年第23卷第4期

页      面：486-494页

核心收录：

学科分类：080805[工学-电工理论与新技术] 0808[工学-电气工程] 080202[工学-机械电子工程] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China (50875012) National High-tech Research and Development Program (2008AA04Z124) National Science and Technology Major Project (2009ZX04001-141) Joint Construction Project of Beijing Municipal Commission of Education 

主　　题：dual drive curve tool path planning multi-point machining 5-axis sculptured surfaces numerical control (NC) machining 

摘      要：The problem of finished surface being not first-order continuous commonly exists in machining sculptured surfaces with a torus cutter and some other types of cutters. To solve this problem, a dual drive curve tool path planning method is proposed in this article. First, the maximum machining strip width of a whole tool path can be obtained through optimizing each tool position with multi-point machining （MPM） method. Second, two drive curves are then determined according to the obtained maximum machining strip width. Finally, the tool is positioned once more along the dual drive curve under the condition of tool path smoothness. A computer simulation and cutting experiments are carried out to testify the performance of the new method. The machined surface is measured with a coordinate measuring machine （CMM） to examine the machining quality. The results obtained show that this method can effectively eliminate sharp scallops between adjacent tool paths, keep tool paths smooth, and improve the surface machining quality as well as machining efficiency.