预热温度对S355钢L型焊接接头温度场、应力场、应变场和微观组织的影响研究
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摘要
本文主要研究典型结构钢材料S355作为焊接母材时,在不同预热温度条件下L型焊接接头的温度场、应力场、应变场以及焊缝区的微观组织变化。使用Simufact.welding软件进行焊接过程的数值模拟,采用更为符合电弧焊实际情况的双椭球热源模型。研究结果给出了预热温度对L型焊接接头温度场、应力场和应变场的影响,显示了材料S355在焊接冷却过程中的贝氏体相变对焊缝区应力场变化的影响。
The temperature, stress, strain fields and the change of microstructure of the L type welded joint at different preheating temperatures were studied taking typical structural steel S355 as base metal. The welding process was simulated by Simufact.welding software. The double-ellipsoidal heat source model which was more suitable for arc welding simulation was adopted. The influence of preheat temperature on the fields of temperature, stress and strain of the welded joint was given, and the effect of bainite transformation during welding cooling process on the stress field in the weld zone of S355 material was shown.
The temperature, stress, strain fields and the change of microstructure of the L type welded joint at different preheating temperatures were studied taking typical structural steel S355 as base metal. The welding process was simulated by Simufact.welding software. The double-ellipsoidal heat source model which was more suitable for arc welding simulation was adopted. The influence of preheat temperature on the fields of temperature, stress and strain of the welded joint was given, and the effect of bainite transformation during welding cooling process on the stress field in the weld zone of S355 material was shown.
引文
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[2]田锡唐.焊接结构[M].北京:机械工业出版社,1981:1-61.
[3]曾显恒.焊接工艺参数对汽车发动机用Mg-Gd-Y合金焊接接头组织和性能的影响[J].铸造技术,2015(4):1019-1021.
[4]焊接预热温度、道间温度及预热维持温度的测量指南:GB/T18591-2001[S].
[5]中国机械工程学会焊接学会.焊接手册(第二卷)[M].北京:机械工业出版社,2007.
[6]梁军亮.焊接数值模拟综述[J].中外企业家,2013(7):193.
[7]吴言高,李午申,邹宏军,等.焊接数值模拟技术发展现状[J].焊接学报,2002,23(3):89-92.
[8]Deng Dean,Liang Wei,Murakawa Hidekazu.Determination of welding deformation in fillet-welded joint by means of numerical simulation and comparison with experimental measurements[J].Journal of Materials Processing Technology,2007,183(2/3):219-225.
[9]Piekarska W,Kubiak Marcin,Saternus Zbigniew.Numerical simulation of deformations in T-joint,welded by the laser beam[J].Archives of Metallurgy&Materials,2013,58(4):1391-1396.
[10]张建.低温环境下不同预热温度对T形接头焊接结果的分析[J].温州职业技术学院学报,2014,14(1):61-64.
[11]张书权,王仲珏,代礼,等.基于SYSWELD的T型接头温度场的数值模拟[J].热加工工艺,2011,40(7):133-135.
[12]王黎明,王晓,左秀珍,等.钢零件焊接预热温度的确定[J].黑龙江八一农垦大学学报,2002,14(3):40-43.
[13]朱丽娟.钢材焊接预热温度的确定[J].工业,2015(1):200.
[14]王甫,牛莉,岳宏梅.基于SYSWELD的T型接头应力应变场的数值模拟[J].淮海工学院学报(自然科学版),2016,25(2):16-19.
[15]Simufact.material database for welding[CP/DK].
[16]Structural steel plate:S355 EN 10025:2004[S].
[17]Goldak J,Chakravarti A,Bibby M.A new finite element model for welding heat sources[J].Metallurgical Transactions B,1984,15(2):299-305.
[18]Piekarska W,Goszczyńska D,Saternus Z.Application of analytical methods for predicting the structures of steel phase transformations in welded joints[J].Journal of Applied Mathematics and Computational Mechanics,2015,14(2):61-72.
[19]Brunelli K,Bassani P,Lecis N,et al.Microstructural evolution of a continuously cooled air hardening steel[J].Metallography,Microstructure,and Analysis,2013,2(2):56-66.