User Manual

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OPRATING INSTRUCTIONS OPRATING INSTRUCTIONS
6.3 Welding position
FLAT POSITION This is easiest of the welding positions and is most commonly used. It is best if you
can weld in the flat position if at all possible as good results are easier to achieve.
HORIZONTAL POSITION. This is performed very much the same as the flat weld except that angle B
(see HOLDING THE TORCH) is such that the wire is directed more toward the metal above the weld
joint. This is to help prevent the weld puddle from running downward while still allowing slow
enough travel speed. A good starting point for angle B is about 30 degrees DOWN from being
perpendicular to the work piece.
Butt Weld Joints. When butt welding thicker materials, you will need to prepare the edges of the
material to be joined by grinding a bevel on the edge of one or both pieces of the metal being joined.
When this is done, a V is created between the two pieces of metal, that will have to be welded closed.
In most cases more than one pass or bead will need to be laid into the joint to close the V.
Laying more than one bead into the same weld joint is known as a multiple-pass weld.
The illustrations in following figure show the sequence for laying multiple pass beads into a single V butt
joint.
WHEN USING SELF-SHIELDING FLUX-CORED WIRE it is very important to thoroughly chip and brush the
slag off each completed weld bead before making another pass or the next pass will be of poor quality.
Fillet Weld Joints. Most fillet weld joints, on metals of moderate to heavy thickness, will require multiple
pass welds to produce strong joint. The illustrations in Figure 19 show the sequence of laying multiple
pass beads into a T fillet joint and a lap fillet joint.
VERTICAL POSITION. It is easier for many people to pull the torch from top to bottom. It can be difficult
to prevent the puddle from running downward. Pushing the torch from bottom to top may provide
better puddle control and allow slower rates of travel speed to achieve deeper penetration. When
vertical welding, angle B (see HOLDING THE TORCH) is usually always kept at zero, but angle A will
generally range from 45 to 60 degrees to provide better puddle control.
OVERHEAD POSITION. This is the most difficult welding position. Angle A (see HOLDING THE TORCH)
should be maintained at 60 degrees. Maintaining this angle will reduce the chances of molten metal
falling into the nozzle. Angle B should be held at zero degrees so that the wire is aiming directly into
the weld joint. If you experience excessive dripping of the weld puddle, select a lower heat setting. Also,
the weave bead tends to work better than the stringer.
6.4 Multiple pass welding
NOTE:
WARNING!
PEENING THE SLAG FROM A WELD JOINT CAUSES SMALL CHIPS OF METAL TO FLY THROUGH
THE AIR.
• Metallic chips flying through the air can cause eye injury or injury to other parts of the head,
hands or exposed portions of the body.
• Wear goggles or eyeglasses with side shields and protect the hands and other exposed parts
of the body with protective garments, or if possible, work with a shield between the body and
the workpiece.
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