Temperature and Stress Evaluation during Three Different Phases of Friction Stir Welding of AA 7075-T651 Alloy

Figure 4

Transient temperature distributions on the surface and through-thickness in the workpiece at times (a) 0.9 sec, (b) 6.05 sec, (c) 12.1 sec, (d) 12.3 sec, (e) 19.8 sec (mid-length), and (f) 27.5 sec (end of weld).

(a)

(b)

(c)

(d)

(e)

(f)