Dynamic analysis of runout correction in milling |
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| Authors: | E Diez Cifuentes H Pérez García M Guzmán Villaseñor A Vizán Idoipe |
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| Affiliation: | 1. Department of Mechanical Engineering, University of La Frontera, Temuco, Chile;2. Department of Mechanical Engineering, University of León, 24071 León, Spain;3. Department of Mechanical and Manufacturing Engineering, Technical University of Madrid, 28006 Madrid, Spain;1. The University of British Columbia, Department of Mechanical Engineering, Manufacturing Automation Laboratory, 2054-6250 Applied Science Lane, Vancouver, BC V6T 1Z4, Canada;2. State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China;1. LS2N (Laboratory of Digital Sciences of Nantes, UMR CNRS 6004), University of Nantes, Nantes, France;2. L2S (Laboratory of Signals and Systems, UMR CNRS 8506), Centrale Supélec, Gif sur Yvette, France;1. Faculty of Mechanical Engineering and Management, Poznan University of Technology, 3 Piotrowo St., 60-965 Poznan, Poland;2. Faculty of Mechanical Engineering, Opole University of Technology, 76 Proszkowska St., 45-758 Opole, Poland |
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| Abstract: | Tool runout and its effects is an important area of research within modelling, simulation, and control of milling forces. Tool runout causes tool cutting edges to experience uneven forces during milling. This fact also affects tool life and deteriorates workpiece surface quality. In this article a procedure, in order to diminish the effects of tool runout, is presented. The procedure is based on chip thickness modification by means of the fast correction of the tool feed rate. Dynamic feed rate modification is provided by superposing our own design of a fast feed system driven by a piezoelectric actuator to the conventional feed drive of the CNC machine tool. Previously, a model of the dynamic behaviour of the system was developed to analyze the influence of fast feed rate modification on cutting forces. The model incorporates the piezoelectric actuator response as well as the structural dynamics of the tool and the designed Fast Feed Drive System (FFDS). Simulated and experimental results presented in this paper show the effectiveness and benefits of this new tool runout correction procedure. |
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