Investigations on grinding process of woven ceramic matrix composite based on reinforced fiber orientations |
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| Affiliation: | 1. Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin University, Tianjin, China;2. Key Laboratory of Advanced Functional Composites, CASC, Beijing, China;1. Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong Province, PR China;2. School of Mechanical Engineering, Southeast University, Nanjing 211189, Jiangsu Province, PR China;1. Key Laboratory of Advanced Ceramics and Machining Technology, Tianjin University, Ministry of Education, People''s Republic of China;2. Department of Mechanical Engineering, College of Engineering, Boston University, United States;1. Institute of Manufacturing Engineering, Huaqiao University, Xiamen 361011, China;2. School of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China |
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| Abstract: | Fiber orientations play the decisive role in grinding process of woven ceramic matrix composites, but the influence of woven fibers in grinding process is not clear. This paper studies the surface quality and grinding force by comparing different woven surfaces. Through a series of experiments in optimized sampling conditions, we analyze characteristics of the material surface topography height, wave distribution and surface support properties in details. And we find some outstanding characteristics of the surface microstructure. We also study the influence of grinding processing parameters on surface microstructure. The results show that machining surface which contains more parallel fibers is rougher and more keenness than gauss surface. Grinding wheel speed and depth of cut have great influence on surface topography and surface support properties. And it is discovered that grinding forces are also highly dependent on fiber orientations. The mechanism of the grinding phenomena is also analyzed in this paper according to knowledge of fracture mechanics and mechanical damage phenomenology. The research obtained will be an important technical support on improving the processing quality of woven ceramic matrix composites. |
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| Keywords: | A Ceramic-matrix composites (CMCs) B Microstructures B Surface properties E Machining |
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