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工艺参数对楔横轧42CrMo/Q235复合材料层合轴界面剪切强度的影响

本站小编 Free考研考试/2021-12-21

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工艺参数对楔横轧42CrMo/Q235复合材料层合轴界面剪切强度的影响
Process Parameters Influence of Cross-Wedge Rolling on Interface Shear Strength of Laminated Shaft Made from 42CrMo/Q235
投稿时间:2017-03-31
DOI:10.15918/j.tbit1001-0645.2018.09.001
中文关键词:层合轴工艺参数界面剪切强度楔横轧
English Keywords:laminated shaftprocess parametersinterface shear strengthcross wedge rolling
基金项目:国家自然科学基金资助项目(51405248;51475247);山东省重点研发计划(2016DJQ0604);浙江省自然科学基金资助项目(LY18E050006);宁波市自然科学基金资助项目(2017A610088)
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中文摘要:
对楔横轧42CrMo/Q235层合轴进行轧制实验和界面剪切强度试验,研究成形角α、展宽角β、断面收缩率Ψ、轧制温度T、基材直径d等工艺参数对界面剪切强度的影响规律.结果表明:对楔横轧层合轴界面剪切强度的影响主次为:断面收缩率Ψ、轧制温度T、基材直径d、展宽角β、成形角α.层合轴界面剪切强度随着断面收缩率Ψ、轧制温度T和基材直径d的增大而增大,但过高的轧制温度与过大的基材直径将减小界面剪切强度;随着展宽角β和成形角α的增大而减小.研究结果对楔横轧层合轴模具优化设计和增强界面结合性能提供了依据.
English Summary:
Through rolling experiments and interface shear strength tests of cross-wedge rolled of laminated shaft made from 42CrMo/Q235 composites,the effect laws of process parameters including forming angle α,spreading angle β,area reduction Ψ,rolling temperature T and core material diameter d on the interface shear strength were analyzed.The research results show that the influencing sequence of process parameters on the interface shear strength is the Ψ,T,d,β,and α in turn.With the increase of area reduction Ψ,rolling temperature T and core material diameter d,the shear strength also increases,but the higher rolling temperature and the bigger core material diameter will decrease the shear strength.However,with the increase of spreading angle β and forming angle α,the shear strength decreases.The research results provide a basis for the optimal design of cross wedge laminated mold and strengthening the properties of interface bonding.
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