标题：Research on Tool-Path Generating Methods for NC Machining of Centrifugal Pump Vanes
作者：Wei, Xiuting; Du, Qiang; Liu, Jingcheng
作者机构：[Wei, Xiuting; Du, Qiang; Liu, Jingcheng] Shandong Univ Technol, Shandong Prov Key Lab Precis Mfg & Nontradit Mach, Zibo 255049, Shandong, Peoples R C 更多
会议名称：International Conference on Advanced Mechanical Engineering (AME 2010)
会议日期：SEP 04-05, 2010
来源：ADVANCED MECHANICAL ENGINEERING, PTS 1 AND 2
关键词：Centrifugal Pump Vanes; NC Machining; Parametric Method; Cutting; Step-lengths
摘要：The universal NC program was inefficient for machining centrifugal pump vanes and a new tool-path generation method along section lines was proposed in this paper. After analyzing curve characteristics of centrifugal pump vanes, the mathematical model for calculating cutting step-lengths and determining the next tool contact parameter u(i+1) through step estimating method was put forward. Furthermore, a new iterative algorithm was implemented, along with its terminal condition simplified. The proposed algorithm provided a new idea for developing special NC program of impellers.