LIU Guo-dong, GUO Xiao-hui. Ultrasonic Stress Relieving of 7020 Aluminium-Alloy MIG Welded Joint[J]. Development and Application of Materials, 2013, 28(5): 25-28. DOI: 10.19515/j.cnki.1003-1545.2013.05.007
Citation: LIU Guo-dong, GUO Xiao-hui. Ultrasonic Stress Relieving of 7020 Aluminium-Alloy MIG Welded Joint[J]. Development and Application of Materials, 2013, 28(5): 25-28. DOI: 10.19515/j.cnki.1003-1545.2013.05.007
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Ultrasonic Stress Relieving of 7020 Aluminium-Alloy MIG Welded Joint

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  • This paper deals with metal inert gas welding technics of 7020 aluminium alloy plate with 16mm thickness. The proper welding parameter was determined and ultrasonic treatment to relieve the welding residual stress was conducted. The results show that with ultrasonic peening, the welding residual stress of 7020 aluminium alloy MIG welded joints were relieved.
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