Multiattribute Assessment of Consumables for TIG Welding of Aluminum Alloys

Table 7

TOPSIS analysis result.

Filler alloy			Electrode			Shielding gas
Alternates		Rank	Alternates		Rank	Alternates		Rank
ER5356 (C1)	0.8358	1	Pure tungsten ()	0.4084	4	Pure argon ()	0.7149	1
ER5556 (C2)	0.6184	3	2% thoriated ()	0.5789	2	Pure helium ()	0.2850	4
ER5183 (C3)	0.7205	2	2% ceriated ()	0.4745	3	25% argon + 75% helium ()	0.3280	3
ER5654 (C4)	0.3142	5	1.5% lanthanated ()	0.2835	5	75% argon + 25% helium ()	0.6719	2
ER5554 (C5)	0.3516	4	0.8% zirconiated ()	0.5869	1	50% argon + 50% helium ()	0.2363	5