Development of postprocessor, simulation and verification software for a five-axis CNC milling machine

Cengiz, Ender
Five-axis CNC milling machine tools bring great facility to produce complex workpieces with increased dimensional accuracy and better surface quality in shorter machining times. However, kinematics of five-axis machine tools has a complex form which makes it difficult to operate these machine tools properly. The difficulty arises from the complexity of NC-Code generation and tool path verification. Collision of machine tool or setup components with each other is a severe problem in five-axis machining operations and usually results from inadequate postprocessors or insufficient collision checking due to absence of well-prepared simulation and verification programs. Five-axis CNC machine tool owners may get rid of this problem by purchasing commercial postprocessors, simulation and verification programs. However, these programs are expensive and small and medium enterprises (SME̕s) usually cannot afford the costs of these programs. In the related libraries of commercial programs, there is great number of CNC machine tools, which is generally unnecessary for SME̕s. An alternative to overcome this problem is to develop particular program, which is capable of postprocessing, simulating and verifying milling operations, for each certain five-axis CNC machine tool. In this study, a software named أManus 1.0ؤ, which performs postprocessing and simulation processes, has been developed for the high speed أMazak Variaxis 630-5Xؤ CNC five-axis machine tool, located in METU-BILTIR Center. Moreover, tool path verification algorithms have been developed to detect collisions. The software has been written in Borland C++ Builder5.0. The developed program has been tested in sample milling operations and satisfactory results have been achieved.


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Citation Formats
E. Cengiz, “Development of postprocessor, simulation and verification software for a five-axis CNC milling machine,” M.S. - Master of Science, Middle East Technical University, 2005.