Friction stir welding of aluminum alloy with varying tool geometry and process parameters

Abstract

The present investigation had two objectives: first, to study the effect of the geometry of the tool pin, and second, the effect of tool rotation and welding speeds on the mechanical properties of friction stir welded joints made for samples of commercial grade aluminium alloys. The results obtained from the performed experiments showed that tools with tapered pins created superior mechanical properties for the friction stir welded joints. It was also found that overall mechanical response depended on the ratio of the tool rotation speed to the tool traverse speed. Suitable values for this ratio were isolated that lead to high quality mechanical properties for the created joints.

Influence of Heat Input on Friction Stir Welding for the ODS Steel MA956

“…For MA956, the minimum range of pseudo-heat index that produced consolidated defect free welds was between 100 to 150. This concept is similar to research by Biswas in a review of FSW parameters on an aluminum alloy [17]. In this research, the overall mechanical response of the welded alloy depended on the ratio of tool rotational speed to tool traverse speed.…”

Grain size and particle dispersion effects on the tensile behavior of friction stir welded MA956 oxide dispersion strengthened steel from low to elevated temperatures

“…(1)). This method is consistent with other research that uses HI as a measure of the welding heat input and evaluate weld consolidation, evolved microstructure, and material properties following FSW for a variety of materials in relation to this parameter [38][39][40][41].…”

Mechanical Properties of Friction Stir Welded AA1050-H14 and AA5083-H111 Joint: Sampling Aspect

“…The FSW joint was characterized by general unique zones as shown in Figure 9. Those zones included the stir zone (SZ) around the weld centre line, the thermo-mechanically affected zone (TMAZ) on both sides of the weld nugget/stir zone, the heat-affected zone (HAZ), which surrounded the TMAZ, and the non-affected base metal (BM) [12][13][14][15][16][17][18]. The regions originated from the material flow behaviour caused by the tool rotation.…”