8
Table 11-2 – Spot Welding Conditions
for Aluminum/Air Backup STOCK
ARC ARC
ARC SIZE
WIRE CURRENT
VOLTAGE
DURATION IN.
mm
IN. mm
(AMPS) (VOLTS)
(SEC)
.0625 1.6
1/16 1.6
170 26
1.0
125 27
1.5 .0938
2.4 1/16
1.6 230
28 1.0
210 28
1.5
.125 3.2
1/16 1.6
280 30
1.0
265
30
1.5
.1875 4.8
1/16 1.6
330 28
1.0 310
27
1.5
.250 6.4
1/16 1.6
440 30
1.0 415
29 1.5
SHIELD GAS: He-75 WELDING
WIRE: ER4043
