A Survey of Machine Learning in Friction Stir Welding, including Unresolved Issues and Future Research Directions

Table 2

FSW process parameters for various materials used.

S.no.	Material	Rotational speed	Welding speed	Temperature	Tensile strength	Yield stress	Tool material/geometry	References
1	S70C (0.72 wt.% C)	100-800 rpm	25-40 mm/s	723°C	817 MPa	365 MPa	PCBN	[80]
2	1018 steel	450 to 650 revolutions per minute	1 to 4 in./min	Close to 1000°C	463 MPa	310 MPa	Molybdenum-based and tungsten-based alloy tool butt joint	[81]
3	AA2195 plates	240 rpm	2.36 mm/sec	<450°C	600 MPa	570 MPa	M2 tool steel	[7]
4	S12C—carbon steel with a small proportion of pearlite	400 rpm	100 mm/min	790°C	317 MPa	202 MPa	WC-based material	[46]
5	IF steel	400 rpm	100 mm/min	839°C	284	155	WC-based material	[46]
6	S35C	400 rpm	100 mm/min	653°C	533	327	WC-based material	[80]