Materials Reports  2020, Vol. 34 Issue (Z2): 462-464 |
| METALS AND METAL MATRIX COMPOSITES |
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| Structure and Property of Stainless Steel Deep Penetration TIG Welding Welded Joint |
| LIU Zigang1,2, TANG Haihong1,2, LIU Yunhua1,2, CHEN Liang2, CHEN Yong2, CHEN Fei1
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1 Noblelift Intelligent Equipment Co. Ltd.,Huzhou 313100, China
2 Engineering Research Center of Intelligent Logistics Equipment of Zhejiang Province,Huzhou 313100, China |
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Abstract Deep penetration TIG welding (DP-TIG welding) is a new type of TIG welding.The welding method has the advantages of large welding depth, high welding speed and high deposition rate.The effects of different welding heat input on the microstructure and mechanical properties of stainless steel plates with different thickness were studied by using appropriate welding parameters.The results show that there is a small amount of dendritic ferrite on the austenitic matrix.The low temperature impact toughness of the weld decreases with the increase of welding heat input, but the low temperature impact toughness of the weld zone is better than that of the heat affected zont.The tensile strength and hardness of welds do not change obviously with the increase of welding heat input.
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Published: 08 January 2021
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| About author:: Zigang Liu, graduated from Lanzhou University of Technology with a master's degree in engineering in June 2013. He is a welding engineer, mainly engaged in new efficient welding methods and welding automation equipment and other aspects of the research, has published 7 papers. |
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9 Sharma P, Dwivedi D K.Journal of Manufacturing Processes, 2019, 44,166.
10 Kulkarnia A, Dwivedi D K, Vasudevan M.Journal of Materials Processing Technology, 2019, 274,1. |
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