Walter WWS-120B2-K01, Operating Manual

Page: 47 / 132

Before Use
47
EN
Material
thickness S =
2-3 mm 3-4 mm 4-5 mm
Area d=
0.5-1.5 mm 1.5-2.5 mm 2-3 mm
Front face d= 1-2 mm 2-3 mm 3-4 mm
vertical d=
1-1.5 mm 1.5-2.5 mm 2-3 mm
Continuing an interrupted seam
Welding
Welded joints
Welded joints
Welding away from the body
Butt joints
Welding towards the body
High quality weld
• First remove the slag from the weld starting
point.
• Ignite the arc in the weld seam and move it
quickly to the joining point.
• Melt the material properly there, and then
continue welding.
For more information, see the chapter "Welding".
Prerequisite for welding is to generate an arc.
To do so, you need to match the welding current
and the speed at which the welding electrode is
moved, with each other.
• You can find the best setting for the welding
current and wire feed speed on a test
workpiece.
• A well primed arc will have a soft, constant
buzz / tone. The weld penetration should be as
deep as possible to prevent the welding pool
falling through the workpiece.
There are two essential types of welding joints:
Butt joints and angle joints (outer corner, inner
corner and superimposition).
When welding a butt joint with material up to
2 mm thick, the entire faces of the material
must be in contact with each other. For larger
thicknesses, proceed according to the following
table:
Move the welding torch
forward.
Result:
The weld penetration
is small, the weld seam wide
and flat and the possibility of
a poor joint higher.
You move the welding torch
away from the weld.
Result: The weld penetration
is more, the seam width is
smaller, the weld cord is
higher and the possibility of a
poor joint lower.
Working with the correct
arc length, advancement
speed, current intensity and
inclination of the electrode
produces a regular cord, a
fine mesh and a joint free of
porosity and slag inclusions.