Based on the principle of laminated machining, the method of auto-programmingin the electro discharge milling (ED-milling) process is drawn out. With the help of IGES formattedfiles, the process slicing and the machining locus can be programmed well. The program adoptsthree-parameter convergence as the basic way to slice the geometry mold and divide the non-uniformrational B-spline curve (NURBS) surface. With the great mount of discrete points, a given arithmeticis drawn out to order them, and then is carried out the interpolation of bi-arc. In the process,according to the character of the EDM process, the zigzag track of machining is accepted to removethe volume of work piece and shape the contour along the contour line of the slicing segments,including multi-connection. As a result, some correlative experiments are accomplished.
Zhao Wansheng Yang YangWang ZhenlongDepartment of Mechanical Engineering,Harbin Institute of Technology,Harbin 150001 ,China
