| 35Cr2Ni4MoA高强钢摩擦焊接头热力耦合有限元分析 |
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| 引用本文： | 朱海,郭艳玲,张姗姗.35Cr2Ni4MoA高强钢摩擦焊接头热力耦合有限元分析[J].焊接学报,2013,34(4):81-84. |
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| 作者姓名： | 朱海 郭艳玲 张姗姗 |
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| 作者单位： | 1. 东北林业大学机电工程学院,哈尔滨,150040
2. 山推工程机械股份有限公司,济宁,272073 |
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| 基金项目： | 黑龙江省科技攻关资助项目 |
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| 摘 要： | 采用热力耦合有限元分析方法,由焊件材料的性能参数及焊接工艺参数建立了二维轴对称粘塑性热力耦合有限元模型,对35Cr2Ni4MoA材料环形工件的连续驱动摩擦焊过程进行了模拟,得到并分析了温度场、应力应变场以及轴向缩短量的变化规律.测量了实际焊件的轴向缩短量和飞边形状,并与计算结果进行了对比,结果表明,利用该模型得到的摩擦焊接头飞边形状和轴向缩短量的计算结果和试验结果吻合较好.建立的有限元模型有助于制定合理的焊接工艺参数.
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| 关 键 词： | 有限元分析 热力耦合 轴向缩短量 |
| 收稿时间： | 2012/11/12 0:00:00 |
Finite element analysis of thermal-mechanical coupled model for friction welded joint of 35Cr2Ni4MoA high-strength steel |
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| ZHU Hai,GUO Yanling and ZHANG Shanshan.Finite element analysis of thermal-mechanical coupled model for friction welded joint of 35Cr2Ni4MoA high-strength steel[J].Transactions of The China Welding Institution,2013,34(4):81-84. |
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| Authors: | ZHU Hai GUO Yanling and ZHANG Shanshan |
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| Affiliation: | College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China,College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China and Shantui Construction Machinery Co., Ltd, Jining 272073, China |
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| Abstract: | A two-dimensional axisymmetric viscoplastic thermal-mechanical coupling finite element model was established with welding parameters and thermal-physical properties of materials to numerically simulate the continuous driven friction welding of ring-shaped 35Cr2Ni4MoA high-strength steel workpieces.The changes of temperature field,stress-strain field and axial shortening were analyzed,and the amount of axial shortening and flash shape during welding were measured and compared with the calculated results.The results show that the simulated flash shape and axial shortening in the welded joint agreed well with the experimental ones.The developed finite element model will be beneficial to formulate proper friction welding procedures. |
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| Keywords: | friction welding finite element analysis thermo-mechanical coupling axial shortening |
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