Consumeables Catalog - Lincoln Electric

APPENDIX
Aluminum
Typical Operating Procedures for Aluminum MIG Welding
TYPICAL OPERATING PROCEDURES FOR GROOVE WELDING
Metal Thickness
(in)
Weld
Position (1)
1/16 F
F
1/8 F, V, H
F, V, H, O
3/16 F, V, H
F, V, H
O
F, V
H, O
1/4 F
F
V, H
O
F, V
O, H
3/8 F
F
V, H
O
F, V
O, H
3/4 F
F
V, H, O
F
V, H, O
Edge
Preparation (2)
A
G
A
G
B
F
F
H
H
C-90°
F
F
F
H
H
C-90°
F
F
F
H
H
C-60°
F
F
E
E
386 ı THE LINCOLN ELECTRIC COMPANY
Joint Spacing
(in) Weld Passes
None
3/32
0 - 3/32
3/16
0 - 1/16
0 - 1/16
0 - 1/16
3/32 - 3/16
3/16
0 - 3/32
0 - 3/32
0 - 3/32
0 - 3/32
1/8 - 1/4
1/4
0 - 3/32
0 - 3/32
0 - 3/32
0 - 3/32
1/4 - 3/8
3/8
0 - 3/32
0 - 1/8
0 - 1/16
0 - 1/16
0 - 1/16
TYPICAL OPERATING PROCEDURES FOR GROOVE WELDING
Metal Thickness (4)
(in) Weld Position (1) Weld Passes (5)
1/8 F,
V, H
O
3/16 F
V, H
O
1/4 F
V, H
O
3/8 F
V, H
O
3/4 F
V, H
O
1
1
1
1
1
1
1
1
1
1
3
3
4
4-6
10
1
1
1
1
1F, 1R
1
2F
2
3
1F, 1R
2
3F, 1R
3F, 1R
2 - 3
4 - 6
1F, 1R
2F, 1R
3F, 1R
5F, 1R
4
8 - 10
3F, 1R
4F, 1R
8F, 1R
3F, 3R
6F, 6R
Electrode Diameter
(in)
0.030 - 3/64
0.030
0.030 - 3/64
3/64
0.030 - 3/64
0.030 - 3/64
3/64 - 1/16
3/64
3/64 - 1/16
1/16
1/16
1/16
3/32
1/16
1/16
Electrode Diameter
(in)
0.030
0.030
0.030 - 3/64
0.030 - 3/64
0.030 - 3/64
3/64
3/64
3/64 - 1/16
3/64
3/64 - 1/16
3/64 - 1/16
3/64
3/64 - 1/16
3/64 - 1/16
3/64 - 1/16
1/16
1/16
1/16
1/16
1/16
1/16
3/32
3/32
1/16
1/16
1/16
DC+ Current (3)
(Amps)
125 - 150
110 - 130
115 - 140
180 - 210
130 - 175
130 - 190
170 - 240
170 - 210
190 - 220
240 - 300
190 - 240
200 - 240
360 - 380
260 - 310
275 - 310
(1) F - Flat, V = Vertical, H = Horizontal, O = Overhead. (2) See joint designs on page 322. (3) For 5XXX series wires, use a welding current on the high side of the range and an arc voltage in the lower portion of the
range. For 1XXX, and 4XXX series wires, use the lower currents and higher arc voltages. (4) Metal thickness of 3/4 in or greater for fillet welds sometimes employs a double vee bevel of 50° or greater included
vee with 3/32 in to 1/8 in land thickness on the abutting member. (5) Number of weld passes and electrode consumption given for weld on one side only.