沈阳工业大学学报2017，Vol.39Issue(1)：28-33,6.DOI:10.7688/j.issn.1000-1646.2017.01.06
薄板激光搭接焊缝的强度评价
Strength evaluation for laser overlap weld joints of thin plates
摘要
Abstract
Aiming at the problem that the strength of laser overlap weld joints of train bodies should be evaluated,the influencing factors and evaluation methods for the strength of weld joints were researched with a method in combination with both experiments and numerical simulation.The numerical simulation was conducted with the software ANSYS,and the phenomenon that the break position changes from the weld joints to the thin plate was verified.The results show that when the weld width is smaller than the thickness of thin plate in two plates, the weld width and shear force approximately show a linear relationship.When the weld width is bigger than the thickness of thin plate,the shear force reaches the maximum value and does not increase with increasing the weld width.In addition,the weld depth and plate gap have no obvious effect on the shear force.According to the established relationship between the weld width and shear force,and the goal of evaluating the strength of weld joints can be realized through measuring the weld width with non-destructive testing.关键词
激光搭接焊缝/剪切试验/焊缝宽度/板间隙/焊缝熔深/拉剪力/超声C扫描/无损检测Key words
laser overlap weld joint/shear test/weld width/plate gap/weld depth/shear force/ultrasonic C scanning/non-destructive testing分类
矿业与冶金引用本文复制引用
李阳,韩晓辉,张双楠,刘峰,蔡桂喜..薄板激光搭接焊缝的强度评价[J].沈阳工业大学学报,2017,39(1):28-33,6.基金项目
辽宁省高等学校优秀人才支持计划项目（LR2012011）． （）
