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The Resource For All Your Welding, Gases and Safety Supplies!
4.9
The Resource - (Inert Gas Equipment)
ALUMINIUM (ACHF)
Welding
Amperes
Cup
Size
Filler
Rod Size
Tungsten
Size
Joint
Type
Metal
Guage
1/16
(1.6 mm)
1/16
(1.6 mm)
BUTT
FILLET
BUTT
FILLET
BUTT
FILLET
BUTT
FILLET
1/16
(1.6 mm)
Argon 15
(7)
20
60 – 80
12
(307.2 mm)
10
(256 mm)
10
(256 mm)
8
(204.8 mm)
12
(307.2 mm)
10
(256 mm)
11
(258.6 mm)
9
(230.4 mm)
70 – 90
125 – 145
140 – 160
190 – 220
210 – 240
260 – 300
280 – 320
20
20
20
17
(8)
21
(10)
25
(12)
Argon
Argon/
Helium
Argon/
Helium
Type
PSI
CFH
(L/MN)
4, 5, 6
6, 7
7, 8
8, 10
1/8
(3.2 mm)
1/8
(3.2 mm)
1/8
(3.2 mm)
1/8
(3.2 mm)
3/32
(2.4 mm)
3/32 – 1/8
(2.4 mm – 3.2 mm)
3/32 – 1/16
(2.4 mm – 1.6 mm)
3/16
(4.8 mm)
3/16
(4.8 mm)
1/4
( 6.4 mm)
Travel
Speed
Shield Gas Flow
MAGNESIUM (ACHF)
Welding
Amperes
Cup
Size
Filler
Rod Size
Tungsten
Size
Joint
Type
Metal
Guage
1/16
(1.6 mm)
1/16
(1.6 mm)
BUTT
FILLET
BUTT
FILLET
BUTT
BUTT
(2)
BUTT
(2)
Argon 13
(5)
15
60
10
(256 mm)
20
(512 mm)
20
(512 mm)
17
(435.2 mm)
22
(563.2 mm)
60
115
115
100 – 130
110 – 135
260
15
15
15
19
(9)
25
(12)
35
(17)
Argon
Argon
Argon
Type
PSI
CFH
(L/MN)
5, 6
7, 8
8
10
1/8
(3.2 mm)
1/4
(6.4 mm)
3/32
(2.4 mm)
3/16
(4.8 mm)
5/32
(4.0 mm)
3/16
(4.8 mm)
1/4
( 6.4 mm)
1/2
( 12.8 mm)
Travel
Speed
Shield Gas Flow
3/32 – 1/8
(2.4 mm – 3.2 mm)
1/8 – 5/32
(3.2 mm – 4.0 mm)
DEOXIDIZED COPPER (DCSP)
Welding
Amperes
Cup
Size
Filler
Rod Size
Tungsten
Size
Joint
Type
Metal
Guage
1/16
(1.6 mm)
1/16
(1.6 mm)
3/32
(2.4 mm)
3/32
(2.4 mm)
BUTT
FILLET
BUTT
FILLET
BUTT
FILLET
BUTT
(2)
FILLET
1/16
(1.6 mm)
Argon 18
(9)
18
(9)
15
110 – 140
12
(307.2 mm)
10
(256 mm)
7
(179.2 mm)
8
(204.8 mm)
11
(258.6 mm)
9
(230.4 mm)
9
(230.4 mm)
10
(256 mm)
130 – 150
175 – 225
200 – 250
190 – 225
205 – 250
225 – 260
250 – 280
15
15
15
36
(17.5)
36
(17.5)
Argon
Helium
Helium
Type
PSI
CFH
(L/MN)
4, 5, 6
4, 5, 6
8, 10
8, 10
1/8
(3.2 mm)
3/16
(4.8 mm)
1/8
(3.2 mm)
1/8
(3.2 mm)
1/8
(3.2 mm)
3/16
(4.8 mm)
1/4
( 6.4 mm)
Travel
Speed
Shield Gas Flow
WELDING ALUMINUM
The use of TIG welding for aluminum has
many advantages for both manual and
automatic processes. Filler metal can be
either wire or rod and should be compatible
with the base alloy. Filler metal must be dry,
free of oxides, grease, or other foreign matter.
If filler metal becomes damp, heat for 2
hours at 250°F before using. Although ACHF
is recommended, DCRP has been successful
up to 3/32", DCSP with helium shield gas is
successful in mechanized applications.
WELDING MAGNESIUM
Magnesium alloys are in three groups, they are:
(1) aluminum-zinc-magnesium, (2) aluminum-
magnesium, and (3) maganese-magnesium.
Since magnesium absorbs a number of harmful
ingredients and oxidizes rapidly when subjected
to welding heat, TIG welding in an inert
gas atmosphere is distinctly advantageous.
The welding of magnesium is similar, in
many respects to the welding of aluminum.
Magnesium was one of the first metals to
be welded commercially by TIG. Magnesium
requires a positive pressure of argon as a
backup on the root side of the weld.
WELDING DEOXIDIZED COPPER
Where extensive welding is to be done, the use
of deoxidized (oxygen-free) copper is preferable
over electrolytic tough pitch copper, although
TIG welding has been used occasionally
to weld zinc-bearing copper alloys, such
as brass and commercial bronzes, it is not
recommended because the shielding gas does
not suppress the vaporization of zinc. For the
same reason zinc-bearing filler rods should not
be used. There is some preference of helium
for the inert atmosphere in welding thicknesses
above 1/8" because of the improved weld
metal fluidity. Preheating recommendations
should be followed.
WELDING PARAMETERS