摘要
为了控制MAG焊接的生产成本,给MAG焊接过程提供精确的技术支持,文中采用有限元软件来模拟计算焊接的过程。基于ABAQUS有限元分析软件,对8 mm厚Q235的MAG温度场进行了数值模拟计算,模拟焊接热源的加载过程,并对各阶段的温度场以及垂直和平行于焊缝附近各点的焊接热循环规律进行了分析。通过模拟计算焊接板材的热学性能可知,温度场呈现为稳态特征,焊接热循环稳定,远离焊缝距离的峰值温度出现时间略有延迟,且温度下降梯度随之减小,数值模拟结果与焊接温度场的实际变化情况吻合良好。
In order to control the production cost of MAG welding and provide accurate technical support for MAG welding process,finite element software is used to simulate the welding process.Based on ABAQUS finite element analysis software,the temperature field of 8 mm-thick Q235 MAG is numerically simulated,the loading process of welding heat source is simulated,and the temperature field of each stage and the welding thermal cycle law of vertical and parallel points near the weld are analyzed.The results show that the temperature field is steady,the welding thermal cycle is stable,the peak temperature time away from the weld is slightly delayed,and the temperature gradient decreases.The numerical simulation results are in good agreement with the actual changes of the welding temperature field.
作者
明灿
马春伟
MING Can;MA Chunwei(School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201600,China)
出处
《电子科技》
2022年第9期74-78,共5页
Electronic Science and Technology
基金
上海市科学技术委员会创新基金(17JC1401400,17JC1302401)
上海工程技术大学研究生科研创新项目(18KY0514)。
关键词
焊接温度场
热循环
ABAQUS模拟
MAG焊
Q235钢
温度场
焊接热源
热物理性能
welding temperature field
thermal cycle
ABAQUS simulation
MAG welding
Q235 steel
temperature field
welding heat source
thermophysical properties
