Tool-path Planning for Multi-axis Machining

• Main Authors: Kang, Lun-Wei, 康倫維
• Other Authors: Young, Hong-Tsu
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/01066502486342341755

碩士 === 國立臺灣大學 === 機械工程學系研究所 === 86 === With the progress of NC technology, there is keener competition among the product. How to promote efficiency and economy has become the focus in the ind ustry. As far as NC machining is concerned, the first step to reach the above goal is to solve the problems of tool-path planning. As tool-path arrangeme nt seriously affects the quality and efficiency of machining, this research at tempts to improve the drawback of traditional planning by introducing the cons tant scallop-height methodology for milling. It effectively shortens the lengt h of tool path and achieves uniform machining surface with controlling the cho rdal deviation. In the proposed algorithm, the removal of unnecessary path usi ng ray-crossings principle is included to ensure the tool inside the part boun dary and the application can be extended to the surface with a hole. Simula tion and experimental analysis have been conducted in this research, and confi rm the practicality of the constant scallop-height method. The research also s hows the potential problems, and provides the solution. Finally the method is applied to hub surface machining in detail as a case study and more discussion s are made.