A Weldment characteristics on Friction stir welding process for shipbuilding materials

2nd International Conference on Advancements in Aeromechanical Materials for Manufacturing

航空航天工程;材料科学;机械制造

Gowthaman, P.S.^1 ; Gowthaman, J.^1 ; Muthukumaran, A.^1 ; Vadivel Kannan, L.^1

Department of Mechanical Engineering, PSNA College of Engineering and Technology, Dindigul

TamilNadu, India^1

关键词: Comparative performance;    Corrosion studies;    Environment friendly;    Flash generation;    Heat-treatable alloys;    High rotational speed;    Process parameters;    Solid-state welding process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/455/1/012070/pdf
DOI  :  10.1088/1757-899X/455/1/012070

来源: IOP

【 摘 要 】

The Friction stir welding Process(FSW) is a solid state welding process that is used on metals where the original characteristics of metal remain as unchanged as possible.The technique has a energy efficient, environment friendly, decrease the fuel consumption and improve the metal performance. These study address the comparative performance of process parameters of Aluminium alloys 5052, 6061 using Friction stir welding. The tool pin probe plays a major role in processing and solidification of joints. The combination of low welding speed and high rotational speed respond the excessive flash generation and formation of grains. A Microstructure of the welded joint were observed by using scanning electron microscopy (SEM).The results exhibits a fine Coarsening and Dissolving of precipitates in weld nugget zone(WNZ).Tensile property shows that the heat treatable alloys undergoes increase in strength value. The Micro-Hardness value decreases gradually to the base metal of welded joints.The corrosion study suggested the no type of corrosion occurs in heat and non heat treatable alloys for 96 Hours.