[Retracted] Analysis of Temperature Distribution and Mechanical Properties of Friction Stir Welding of Al-Cu Joints Using Hardened H13 Steel Tools

Table 6

Maximum temperature at weld regions of each trial and weld appearance after the FSW process.

Samples No	Tool rotationalspeed (rpm)	Feed rate(mm/min)	Max. temp atweld joints (°C)	Weld appearance
1	1000	10	272.9
2	1100	15	278.6
3	1200	20	293
4	1000	10	270
5	1200	15	282