In-process measurement of topography change of grinding wheel by using hydrodynamic pressure |
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| Authors: | Katsushi Furutani Noriyuki Ohguro Nguyen Trong Hieu Takashi Nakamura |
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| Affiliation: | 1. Toyota Technological Institute, 12-1, Hisakata 2-chome, Tempaku-ku, Nagoya 468-8511 Japan;2. Toyota Technological Institute (Daikin Industries, Ltd. at present), Japan;3. Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555 Japan;1. Department of Manufacturing, Faculty of Mechanic, University of Kashan, Kashan, Iran;2. Department of Manufacturing, Faculty of Mechanic, University of Allame Naeini, Naein, Iran;1. Fraunhofer Joint Laboratory of Excellence on Advanced Production Technology (Fh-J_LEAPT Naples) Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy;2. University Estadual Paulista – UNESP – Faculty of Engineering, Department of Electrical Engineering, 17033-360, Bauru, SP, Brazil;3. Ar.Ter. SrL, Via Padula 56/58, 80030 Castello di Cisterna (NA);1. School of Mechatronic Engineering, Changchun University of Technology, Changchun, PR China;2. School of Mechanical Engineering, Shenyang Ligong University, Shenyang, PR China;3. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, PR China;1. Key Laboratory of Fundamental Science for Advanced Machining, Beijing Institute of Technology, PR China;2. Department of Mechanical and Energy Engineering, Southern University of Science and Technology, PR China |
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| Abstract: | This paper deals with an in-process measurement method for topography change of a grinding wheel, which can apply to wet grinding. A pressure sensor is set beside a grinding wheel with a small gap. When grinding fluid is dragged into the gap, hydrodynamic pressure, which corresponds to the gap length and the topography, can be measured. This method is applied to a cylindrical grinding machine. No electromagnetic properties of a workpiece and a grinding wheel affect measured results. The pressure is decreased with the increase of the gap length when the grinding fluid is supplied in the tangential direction of the grinding wheel. Spectra of the pressure are measured with an FFT analyzer. Higher frequency components are increased with the progress of grinding because of turbulent flow. Loading and dulling of a grinding wheel can be detected by the proposed method as well as its wear. |
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| Keywords: | Grinding wheel Loading Dulling Frequency analysis |
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