Advanced Materials & Processes, January 1st, 2004
A friction stir welding (FSW) variant has been developed that involves the application of a rotary motion in combination with an orbital motion, reports TWI, Cambridge, U.K. Designated Com-Stir, this technique has the following potential advantages over conventional friction stir welding: It can form wider welds, advantageous for lap and T-joint welds and materials processing; it should give higher quality welds, as surface oxide fragmentation is more efficient and heat generation is more uniform across the weld; and less workpiece jigging is necessary because of the reduced resultant torque...
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