Materials Reports  2019, Vol. 33 Issue (z1): 420-424 |
| METALS AND METAL MATRIX COMPOSITES |
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| Research on the Laser Welding Technology of the Support Column of the Third Generation Pressurized Water Reactor Based on the Finite Elment Analysis |
| YANG Yatao, GUO Baochao, GONG Hongwei, JIANG En
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| Shanghai No.1 Machine Tool Works Co.,Ltd., Shanghai 201308 |
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Abstract The supporting column is between the upper part and the core board of the RVI in the PWR .it provides support and connection for the guide tube assembly on the drive line. It belongs to all-welded structure, therefore, it is very critical for the welding manufacturing precision. This subject mainly studies the tube laser butt joint of supporting column components. We mainly model and analyze on the laser welding heat source, laser weld contraction and laser deformation. It provides theoretical guidance for manufacturing technology. The details are as follows: laser wel-ding experiment and temperature, macro molding of welding, the residual stress test, the establishment of heat source model and determination of parameters, the laser welding contraction model and welding deformation prediction.
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Published: 05 July 2019
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| About author:: Yatao Yang,master’s degree, welding engineer,gra-duated in 2016, engaged in researching welding processes for the nuclear power core components of the Control Rob Drive Mechanism and Reactor Vessel Internal in Shanghai No.1 Machine Tool Works Co., Ltd., and have Participated in the research of welding processes for important core components such as the second gene-ration, second generation plus, third generation nuclear power Control Rob Drive Mechanism and Reactor Vessel Internal of AP1000, CAP1400 and Hualong One. The research direction is mainly the arc welding, argon arc welding, laser welding, vacuum electron beam welding and others welding processes of nuclear austenitic stainless steel and cobalt-based hard alloy surfacing welding process technology. |
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