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大型S235JRC+N钢工业炉墙板MAG焊接的数值与物理模拟

Numerical and Physical Simulation of MAG Welding of Large S235JRC+N Steel Industrial Furnace Wall Panel.

作者信息

Mróz Marek, Czech Robert, Kupiec Bogdan, Dec Andrzej, Spólnik Marcin, Rąb Patryk

机构信息

Department of Foundry and Welding, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland.

Naftoremont-Naftobudowa Sp. z o.o., Branch Jedlicze, ul. Sikorskiego 17, 38-460 Jedlicze, Poland.

出版信息

Materials (Basel). 2023 Mar 30;16(7):2779. doi: 10.3390/ma16072779.

DOI:10.3390/ma16072779
PMID:37049073
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10096309/
Abstract

This paper presents the results of a study on the development of a Metal active gas (MAG) welding technology for an industrial furnace component made of steel S235JRC+N with respect to the minimizationof welding deformation. A numerical simulation of the welding process was performed in the first phase of the research. The numerical simulation was carried out with the SYSWELD software. For the numerical simulation of the welding process, the FEM method was used. In the simulation, four variants of restraint of the industrial furnace wall panel elements during the execution of the welding process were investigated. They differed in the number of restraints (model 1-4). It was found that the difference between the maximum mean strain in model 1 and the lowest mean strain in model 4 was only 11%. A physical simulation of the welding process was then performed with a restraint variant according to model 1. The displacement results obtained from the physical simulation of the welding process were compared with the displacement results from the numerical simulation. Discrepancies between numerical and physical simulation displacement values were found. The quality of selected welded joints was also evaluated. Visual testing (VT) and measurements of weld geometries were performed for this purpose. Metallographic tests and hardness measurements were performed to determine of influence of the welding process on the microstructure of the welded joint area, especially the heat affected zone (HAZ). The results obtained confirm the correctness of the assumptions made regarding the technology of manufacturing the furnace wall panels.

摘要

本文介绍了一项关于为工业炉中由S235JRC+N钢制成的部件开发金属活性气体（MAG）焊接技术以尽量减少焊接变形的研究结果。在研究的第一阶段对焊接过程进行了数值模拟。数值模拟使用SYSWELD软件进行。对于焊接过程的数值模拟，采用了有限元方法（FEM）。在模拟中，研究了焊接过程中工业炉墙板元件的四种约束变体。它们在约束数量上有所不同（模型1 - 4）。结果发现，模型1中的最大平均应变与模型4中的最低平均应变之间的差异仅为11%。然后根据模型1的约束变体进行了焊接过程的物理模拟。将焊接过程物理模拟获得的位移结果与数值模拟的位移结果进行了比较。发现了数值模拟和物理模拟位移值之间的差异。还对选定焊接接头的质量进行了评估。为此进行了目视检测（VT）和焊缝几何尺寸测量。进行了金相试验和硬度测量，以确定焊接过程对焊接接头区域，特别是热影响区（HAZ）微观结构的影响。所获得的结果证实了关于制造炉墙板技术所做假设的正确性。

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