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《Acta Materiae Compositae Sinica》 2017-01
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Influence of process parameters on thickness-radius ratio of cross-wedge rolling of laminated shaft of 42CrMo/Q235 composites

PENG Wenfei;ZHU Jian;SHU Xuedao;Faculty of Mechanical Engineering and Mechanics,Ningbo University;Zhejiang Provincial Key Laboratory of Part Rolling Technology;  
By using ANSYS/LS-DYNA software,the finite element(FE)model of cross-wedge rolling of laminated shafts was established.Some thickness-radius ratio rolling experiments were carried out under the orthogonal experimental designed with four factors and three levels.Through finite element simulation,the effect of process parameters including forming angle,spreading angle,area reduction and rolling temperature on thickness-radius ratio were analyzed.The results show that the rolling experimental results accord with the simulation results,which shows that finite element model can be used to predict thickness-radius ratio.With the increase of spreading angle,the thickness-radius ratio sharply decreases first and then slowly decreases.With the increase of temperature,the thickness-radius ratio strengthens first and then slowly strengthens.With the increase of area reduction,the thicknessradius ratio slowly strengthens first and then changes little.With the increase of forming angle,the thickness-radius ratio change is not obvious.The influencing sequence on the thickness-radius ratio is spreading angle,rolling temperature,area reduction and forming angle in turn.The research results contribute to control and design clad material thickness and matrix material radius size of laminated shaft.
【Key Words】: laminated shaft thickness-radius ratio process parameters cross-wedge rolling influence analysis
【Fund】: 国家自然科学基金(51405248;51475247);; 国际科技合作项目(CB11-13);; 浙江省新苗计划资助项目(2015R405073)
【CateGory Index】: TG335.8
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