Snap-on Tools Corporation Kenosha, WI 53141-1410
11
ELECTRODE
WIRE
(1" STICKOUT)
NOZZLE
CONTACT TIP
(RECESSED 3/8")
FIG. 14. NOZZLE ADJUSTMENT
FOR WELDING ALUMINUM
2. DO NOT spray any anti-spatter
material on the torch or base
metal and DO NOT attempt to
lubricate the aluminum wire in
any way. Weld contamination
will occur unless the wire, base
metal, torch and work area are
kept clean.
3. Bring the torch nozzle to 1/2 to
5/8 inch from the workpiece. The
recommended position of the
torch and direction of travel
for welding aluminum are shown
in the following illustration.
SHIELDING GAS
10 DEGREES
WORK
DIRECTION
OF TRAVEL
5. Squeeze the torch trigger. The
wire will feed and an arc will be
established. As the weld is
deposited, move the torch slowly
along the weld seam at a constant
speed, while maintaining a con-
stant arc length and a constant
tip-to-work distance.
CONTINUOUS WELDING
ON ALUMINUM
(Optional Nylon liner and 100%
Argon shielding gas are required)
1. Trim the electrode wire, leaving
approximately 1 inch stickout
beyond the end of the nozzle.
Bend the wire over as shown, to
allow for a scratch start. The
contact tip should be recessed
inside the nozzle approximately
3/8 inch. This helps prevent the
welding wire from burning back
to the contact tip.
FIG. 13. TORCH POSITION
FOR WELDING STEEL
- RIGHTHANDED WELDOR
WORK
SHIELDING
GAS
30 DEGREES
DIRECTION
OF TRAVEL
4. Follow steps 4 and 5 as in
"Continuous Welding on Steel".
FIG. 15. TORCH POSITION
FOR WELDING ALUMINUM
