全文下载：2012060613
马连湘， 柯佳娜， 何燕
(青岛科技大学 机电工程学院, 山东 青岛 266061）
摘要: 对Q460E-Z35钢进行了温度场和应力场的三维数值模拟。模拟结果验证了当钢材与所选的焊材匹配时，不产生裂纹的最低预热温度为150 ℃，提高预热温度可以更好地提高焊接材料的抗裂性。模拟结果对Q460E-Z35钢焊缝抗裂纹的能力、焊接接头的使用性能以及焊接接头抗脆性断裂的优化设计具有指导意义。
关键词: 焊接； 传热； 温度场； 数值模拟
中图分类号: TQ 322.91文献标志码： A
收稿日期：2012-03-08
作者简介： 马连湘(1962—)，男，教授,博士生导师.*通信联系人.
Numerical Simulation on Heat Transfer in Q460E-Z35 Steel Welding Process
MA Lian-xiang, KE Jia-na, HE yan
(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061， China)
Abstract: In this paper, the three-dimensional temperature and stress field of Q460E-Z35 steel is simulated. The results show that the minimum preheating temperature of no crack is 150 ℃ and increasing the preheating temperature can improve the crack resistance of the welding material When the steel is matched with the selected welding materials. The simulation result has guiding significance for improving the weld crack resistance ability, welded joints performance and welded joints brittle fracture resistance ability of Q460E-Z35 steel.
Key words: welding； heat transfer； temperature field； numerical simulation
