Ultrasonic-vibration assisted arc-welding of aluminum alloys

Bulletin of the Polish Academy of Sciences. Technical Sciences

A. KrajewskiCorresponding authorDepartment of Joining Engineering, Institute of Materials Processing Faculty of Production Engineering, Warsaw University of Technology, 85 Narbutta St., 02-524 Warsaw, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  P. Ko?odziejczakDepartment of Joining Engineering, Institute of Materials Processing Faculty of Production Engineering, Warsaw University of Technology, 85 Narbutta St., 02-524 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  T. ChmielewskiDepartment of Joining Engineering, Institute of Materials Processing Faculty of Production Engineering, Warsaw University of Technology, 85 Narbutta St., 02-524 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  W. W?osi?skiPolish Academy of Sciences, 1 Defilad Sq., 00-901 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar² 

[1] Department of Joining Engineering, Institute of Materials Processing Faculty of Production Engineering, Warsaw University of Technology, 85 Narbutta St., 02-524 Warsaw, Poland;Polish Academy of Sciences, 1 Defilad Sq., 00-901 Warsaw, Poland

关键词: Keywords : ultrasonic vibrations;    MIG/TIG welding;    aluminum alloys;    structure;    microhardness;   

DOI  :  10.2478/v10175-012-0098-2

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

The structure and hardness of the surface-welds and fusion-welds made on a 2017A aluminum alloy waveguide using the MIG and TIG methods with and without the participation of ultrasonic vibrations were examined. Cross-sections of the fusions and surface-welds thus obtained were observed in a microscope and the hardness distributions were determined. The aim of the study was to analyze the effects of the ultrasonic vibrations applied to the melted metal pool by a vibrating substrate which in our experiments was a waveguide. The interactions of the ultrasonic vibrations with the molten metal during its solidification and also with the heat-affected zone were examined at various phases of the vibration wave. The ultrasonic vibrations affected the structure of a weld. These changes are strongly depended on the wave phase.

【 授权许可】

Unknown