Wang Weijun,Shen Bing,Wang Xiaochun
(School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049,China)
Abstract:Aimed at two shortages during rough working procedures-cast blanks with large-scale free form surfaces are distorted significantly and cutting stocks are distributed very dispersely,a new hogging algorithm is proposed. The algorithm is composed of three primary phases, i.e., the reconstruction of the free form surface with discrete points based on a special Hermite's interpolation; the definition of the hogging areas by means of the curved surface intersection and tool path arrangements. The result indicates that the algorithm is greatly effective to reduce the invalid tool paths so that the working performance can be improved remarkably.
Keywords:free form surface;hogging machining;tool path
กก