Scholarlink

<p>The purpose of this study is to improve the friction stir welded dissimilar joint aluminum alloys 7075/6061-T6 employing a wide range of FSW welding parameters. These aluminum grades are widely used in the automobile and aerospace industries for their corrosion resistance, formability and high strength-to-weight ratio. The wide range FSW parameters tool rotational speed (800-1300RPM) and tool traverse speed (20-40&#xa0;mm/min) at a constant axial load (10kN) were performed the dissimilar weld joints. The characteristics of dissimilar welded joints are reported in terms of microstructure and mechanical properties which include tensile strength and hardness variations. The experimental results showed that the highest tensile strength was obtained close to 350&#xa0;MPa at moderate tool rotational speed and medium tool traverse speed; however, it decreased with any change in tool traverse speed. It happens due to the formation of fine-structure and precipitations in stir zone. Whereas at high rotational speed and tool traverse slower speed, the tensile strength was found to be the least due to coarsening in structure, which increased with any change in tool traverse speed. The combination of FSW weldment properties will be utilized for different applications. </p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of Friction Stir Welding Parameters on Microstructural and Mechanical Properties of Dissimilar Aluminum Alloy 7075/6061-T6 Welded Joints

  • 期刊论文

  • 发表日期：

    2025年5月16日

查看全文
  • Bikash Mohanty,
  • Rajana Suresh Kumar,
  • Sanjeev Kumar

摘要

The purpose of this study is to improve the friction stir welded dissimilar joint aluminum alloys 7075/6061-T6 employing a wide range of FSW welding parameters. These aluminum grades are widely used in the automobile and aerospace industries for their corrosion resistance, formability and high strength-to-weight ratio. The wide range FSW parameters tool rotational speed (800-1300RPM) and tool traverse speed (20-40 mm/min) at a constant axial load (10kN) were performed the dissimilar weld joints. The characteristics of dissimilar welded joints are reported in terms of microstructure and mechanical properties which include tensile strength and hardness variations. The experimental results showed that the highest tensile strength was obtained close to 350 MPa at moderate tool rotational speed and medium tool traverse speed; however, it decreased with any change in tool traverse speed. It happens due to the formation of fine-structure and precipitations in stir zone. Whereas at high rotational speed and tool traverse slower speed, the tensile strength was found to be the least due to coarsening in structure, which increased with any change in tool traverse speed. The combination of FSW weldment properties will be utilized for different applications.