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Investigation of modeling on single grit grinding for martensitic stainless steel

Journal of Central South University 2018年第8期25卷 1862-1869页

作者： NIE Zhen-guo WANG Gang JIANG Feng LIN Yong-liang RONG Yi-ming State Key Laboratory of Tribology&Institute of Manufacturing Engineering Department of Mechanical EngineeringTsinghua University Beijing Key Laboratory of Precision/Ultra-precision Manufacturing Equipments and Control Tsinghua University Mechanical Engineering Department Carnegie Mellon University College of Mechanical Engineering and Automation Huaqiao University School of Mechanical Electronic and Control Engineering Beijing Jiaotong University Mechanical and Energy Engineering Department South University of Science and Technology of China

single grit grinding is the simplified model to abstract the macro scale *** element analysis is a strong tool to study the physical fields during a single grit grinding process,compared to experimental *** on the dynamic mechanical behavior of 2Cr12Ni4Mo3VNbN steel and the mathematical statistics of abrasive grit,modeling of the single grit grinding process was conducted by using commercial software *** validation experiment was designed to validate the correctness of the FEA model by contrast with grinding *** validation result shows that the FEA model can well describe the single grit grinding *** the grinding force and multi-physics fields were studied by experimental and simulation *** was found that both the normal and tangential grinding forces were linearly related to the cutting speed and cutting *** maximum temperature is located in the subsurface of the workpiece in front of the grit,while the maximum stress and strain are located under the grit *** strain rate can reach as high as about 106 s–1 during the single grit grinding,which is larger than other traditional machining operations.

关键词： modeling single grit grinding grinding force multi-physics martensitic stainless steel

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