金属加工（热加工）Issue(7)：36-41,6.
搅拌针形貌与旋向对中空铝型材FSW接头成形的影响研究
Study on the influence of stirrer geometry and rotation direction on the formation of hollow aluminum extrusion FSW joints
摘要
Abstract
The left and right thread stirring was used to carry out friction stir welding of 6005A-T6 aluminum alloy profiles,and the influence of the thread rotation direction of the stirring needle and the rotation direction of the spindle on the welding defects was studied.A multi-field coupling calculation model of friction stir welding was established by ABAQUS,and the flow of plastic materials in the weld nugget zone and the formation of welding defects in the friction stir welding process were simulated and analyzed.The results show that the simulation results are in good agreement with the test results,and the reliability of the simulation is high for the hole defects inside the weld.Under the condition that the shoulder thread remains unchanged,the right-handed thread stir pin can obtain a high-quality welded joint without welding defects,while the welded joint welded by the left-hand thread stir pin produces a hole defect at the bottom of the joint,and the hole defect at the bottom of the nugget area becomes larger after changing the spindle rotation direction.Numerical calculations were used to predict that the left-handed threaded stirring needle could not obtain a welded joint without hole defects under different welding process conditions.关键词
螺纹旋向/旋转方向/搅拌摩擦焊/缺陷Key words
thread rotation direction/direction of rotation/friction stir welding/defect引用本文复制引用
鲁二敬,杨鑫华,钮旭晶,侯振国,郁志凯..搅拌针形貌与旋向对中空铝型材FSW接头成形的影响研究[J].金属加工（热加工）,2025,(7):36-41,6.基金项目
河北省科技重大专项:轨道车辆关键部件增材与修复技术研究及应用示范(24292202Z). （24292202Z）
