Continuity control method of cutter posture vector for efficient five-axis machining |
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| Authors: | Jong-dae Hwang Sang-myung Kim Hyun-chul Jung and Yoon-gyo Jung |
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| Affiliation: | (1) Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan;(2) Chair of Manufacturing Technology, Laboratory for Machine Tools and Production Engineering (WZL), University of Technology at Aachen (RWTH), Aachen, Germany; |
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| Abstract: | During five-axis machining of impeller, the excessive local interference avoidance leads to inconsistency of cutter posture,
low quality of machined surface and increase of processing time. Therefore, in order to improve the efficiency of five-axis
machining of impellers, it is necessary to minimize the cutter posture changes and create a continuous tool path while avoiding
interference. By using an MC-space algorithm for interference avoidance, an MB-spline algorithm for continuous control was
intended to create a five-axis machining tool path with excellent surface quality and economic feasibility. A five-axis cutting
experiment was performed to verify the effectiveness of the continuity control. The result shows that the surface shape with
continuous method is greatly improved, and the surface roughness is generally favorable. Consequently, the effectiveness of
the suggested method is verified by identifying the improvement of efficiency of five-axis machining of an impeller in aspects
of surface quality and machining time. |
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| Keywords: | five-axis control machining configuration-space B-spline continuity control method impeller interference |
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