Saternus Zbigniew, Piekarska Wiesława, Kubiak Marcin, Domański Tomasz
Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Dabrowskiego 69, 42-201 Czestochowa, Poland.
Faculty of Architecture, Civil Engineering and Applied Arts, University of Technology, Rolna 43, 40-555 Katowice, Poland.
Materials (Basel). 2021 Sep 14;14(18):5303. doi: 10.3390/ma14185303.
The paper concerns the numerical analysis of the influence for three different of welding heat source inclinations on the weld pool shape and mechanical properties of the resulting joint. Numerical analysis is based on the experimental tests of single-side welding of two sheets made of X5CrNi18-10 stainless steel. The joint is made using a laser welding heat source. Experimental test was performed for one heating source inclination. As a part of the work metallographic tests are performed on which the quality of obtained joints are determined. Numerical calculations are executed in Abaqus FEA. The same geometrical model is assumed as in the experiment. Material model takes into account changing with temperature thermophysical properties of austenitic steel. Modeling of the motion of heating source is performed in additional subroutine. The welding source parameters are assumed in accordance with the welding process parameters. Numerical calculations were performed for three different inclinations of the source. One inclination is consistent with experimental studies. The performed numerical calculations allowed to determine the temperature field, shape of welding pool as well as deformations and stress state in welded joint. The obtained results are compared to results of the experiment.
本文涉及对三种不同焊接热源倾斜度对焊缝形状及所得接头力学性能影响的数值分析。数值分析基于对由X5CrNi18 - 10不锈钢制成的两片板材进行单面焊接的实验测试。接头采用激光焊接热源制成。针对一种热源倾斜度进行了实验测试。作为工作的一部分，进行了金相测试以确定所获接头的质量。数值计算在Abaqus有限元分析软件中执行。采用与实验相同的几何模型。材料模型考虑了奥氏体钢随温度变化的热物理性能。热源运动的建模在附加子程序中进行。焊接源参数根据焊接工艺参数设定。针对热源的三种不同倾斜度进行了数值计算。其中一种倾斜度与实验研究一致。所进行的数值计算能够确定温度场、焊池形状以及焊接接头中的变形和应力状态。将所得结果与实验结果进行了比较。
