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Prediction on grinding force during grinding powder metallurgy nickel-based superalloy FGH96 with electroplated CBN abrasive wheel

引用

Chinese Journal of Aeronautics 2021年第8期34卷 65-74页

作者： Benkai LI Chenwei DAI Wenfeng DING Changyong YANG Changhe LI Olga KULIK vyacheslav shumyacher National Key Laboratory of Science and Technology on Helicopter Transmission Nanjing University of Aeronautics and AstronauticsNanjing 210016China College of Mechanical Engineering Suzhou University of Science and TechnologySuzhou 215009China School of Mechanical Engineering Qingdao University of TechnologyQingdao 266520China Volzhsky Polytechnic Institute(Branch)Volgograd State Technical University 42a Engelsa StreetVolzhskyVolgograd Region 404121Russia

In this article,a grinding force model,which is on the basis of cutting process of single abrasive grains combined with the method of theoretical derivation and empirical formula by analyzing the formation mechanism of grinding force,was *** key factors have been taken into accounts in this model,such as the contact friction force between abrasive grains and materials,the plastic deformation of material in the process of abrasive plowing,and the shear strain effect of material during the process of cutting chips *** model was finally validated by the orthogonal grinding experiment of powder metallurgy nickel-based superalloy FGH96 by using the electroplated CBN abrasive *** force values of prediction and experiment were in good *** errors of tangential grinding force and normal grinding force were 9.8%and 13.6%,*** contributions of sliding force,plowing force and chip formation force were also *** addition,the tangential forces of sliding,plowing and chip formation are 14%,19%and 11%of the normal forces on average,*** pro-posed grinding forcemodel is not only in favor of optimizing the grinding parameters and improving grinding efficiency,but also contributes to study some other grinding subjects(*** wheel wear,grinding heat,residual stress).

关键词： Electro-plated CBN abrasive wheel Grinding force model Grinding mechanism Orthogonal experiment Powder metallurgy nickel-based superalloy FGH96

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