Tool Posture Determination for 5-Axis Control Machining by Area Division Method(<Special Issue>Advanced Manufacturing Technology [I])
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概要
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The study deals with a new method to generate interference-free tool posture for 5-axis control machining using a ball end-mill. The 5-axis control machining can produce complicated shapes and parts consisting of overhanging and or sculptured surfaces such as impellers. However, high degree of freedom of 5-axis control machining center causes a fatal problem that other parts except cutting edges of the tool may interfere with other surfaces of the machining object. Therefore, it is necessary to obtain the adequate tool postures to avoid the interference during machining. The interference avoidance is generally performed by the method that cutting points are generated so as to be arranged on the surface to be machined, and then the interference-free tool posture is determined on each cutting point by the geometrical calculations. However, the method has a problem that it takes long time for calculation. To solve the problem, the study proposes a new interference avoidance method of reversing the order of the above procedure, i. e., that of determining a set of interference-free tool postures before generating cutting points. From the machining results, it is confirmed that the proposed method is available to fabricate complicated shapes since the impeller can be machined by using the method.
- 2006-03-15
著者
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TERAMOTO Koji
Department of Applied Chemistry & Biochemistry, Faculty of Engineering, Kumamoto University
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Takeuchi Yoshimi
Department Of Mechanical Engineering Graduate School Of Engineering Osaka University
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Takeuchi Yoshimi
Department Of Computer-controlled Mechanical Systems Osaka University
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ISHIDA Tohru
Department of Mechanical Engineering, Graduate School of Engineering, Osaka University
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Teramoto Koji
Department Of Mechanical Engineering Graduate School Of Engineering Osaka University
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UMEHARA Takeshi
Department of Public Health Sciences, Dokkyo University School of Medicine
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Ishida Tohru
Department Of Mechanical Engineering Graduate School Of Engineering Osaka University
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Umehara Takeshi
Department Of Mechanical Engineering Graduate School Of Engineering Osaka University
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Takeuchi Yoshimi
Department Of Mechanical Engineering Graduate School Engineering Osaka University
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Takeuchi Yoshimi
Department Of 2nd Surg. Niigata University School Of Medicine
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Ishida Tohru
Department Of Mechanical Engineering Graduate School Engineering Osaka University
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Takeuchi Yoshimi
Dept. Of Mechanical Engineering Graduate School Of Engineering Osaka University
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