Evaluation of Friction Stir Welds by X-ray Digital Radiographic Non-Destructive Approach

2nd International Conference on Engineering for Sustainable World

Mumvenge, Itai^1 ; Akinlabi, Stephen A.^2 ; Mashinini, Peter M.^2 ; Fatoba, Olawale S.^1 ; Okeniyi, Joshua^1,3 ; Akinlabi, Esther T.^1

Department of Mechanical Engineering Sciences, University of Johannesburg, South Africa^1

Department of Mechanical and Industrial Engineering Technology, University of Johannesburg, South Africa^2

Department of Mechanical Engineering, Covenant University, Ota, Nigeria^3

关键词: Joint interfaces;    Micro-structural;    Micro-structure evolutions;    Non destructive;    Rotational speed;    Visual inspection;    Welded butt joint;    X ray digital radiography;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/413/1/012035/pdf
DOI  :  10.1088/1757-899X/413/1/012035

来源: IOP

【 摘 要 】

This paper focuses on the microstructure evolution and the relationship to the microhardness profiling of the friction stir welded butt joint on similar AA6061-T6 Aluminium alloys. The only parameters used and varied for this study were rotational speed and feed rate. The geometry of the tool was kept constant and the material used was tool steel, W302. Friction stir welds were evaluated by both visual inspection and the X-ray digital radiography method. Evaluation allowed for assessment of the weld integrity by examining for the presence and absence of weld defects. The results indicated that the welds do not have any root defects. The X-rays showed complete penetration as evidenced by the evaluation of microstructural joint interface.