Microstructures and Mechanical Properties of Al/Fe and Cu/Fe Joints by Continuous Drive Friction Welding

Table 1

Friction welding parameters in the experiments and the burn-off length of joints.

Dissimilar joint	Friction pressure (MPa)	Rotation speeds (rpm)	Burn-off (mm)
Al/Fe	20	1200	2.1
	28		4.4
	36		5.4
	44		8.3
Cu/Fe	20	1900	2.9
	28		4.5
	36		6.4
	44		11.5