Abstract
This paper presents the mathematical methods and algorithms to compute milling cutter placement and machined surface error analysis problems for 4- and 5-axis finished-surface machining. Different types of endmill cutters, such as the torusshaped (filleted) endmill, flat-endmill and sphere-endmill, are used for multi-axis NC machining. A generalized tool description with tool orientation variables for variant types of cutters is developed for 5-axis machining. Methods of finding an instantaneous cutting profile and the local surface geometry to analyse machined surface errors are discussed for cutter location generation. A method of deciding tool orientation to avoid rear tool collision using global geometry information is also presented. The techniques presented in this paper can be used to eliminate errors of milling tool path generation in the area of simultaneous multi-axis NC complex surface machining.
Published Version
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