CRAFT-STICK | Version 1.12
9
Operating principle
Type of electrode:
Fill material
The fill material is selected in the form of wire or rods. It
is also possible to use sheet metal strips of the same
material as the base metal. However, the metal to be ap-
plied must always be clean. The composition of the fill
material must avoid the formation of porosity. It is chosen
depending on the material to be welded. When using a
suitable material and working at a uniform speed, the
weld must be smooth, free of porosity and have a good
appearance.
6.2.2
Welding process
Step 1: Heat the starting point in the working area with
small circular movements of the burner until the
fusion bath is formed.
Fig. 6: Preparing the work area
Step 2: The electrode must be positioned approx. 6 mm
away from the workpiece. Once the bath is for-
med, proceed slowly and at a constant speed to
form a bath of uniform thickness and width.
Fig. 7: Work area
Step 3: Hold the rod at a distance of about 20 mm from
the workpiece when using an fill material.
Fig. 8: Rod workpiece distance
Step 4: Remove the burner and add material by touching
the rod in the bath when the molten bath beco-
mes liquid.
Fig. 9: Add material
Step 5: Pull the rod back and bring the burner near the
molten bath.
Fig. 10: Pull out the rod
Step 6: Repeat this process speedily and evenly to
achieve a homogeneous weld.
Electrode
Color
Usage
Tungsten waxed
grey
Universal
Tungsten pure
green/
blue
Aluminium and alumi-
nium alloys
Thoriated
tungsten
red
Iron-stainless steel-
copper
Summary of Contents for 1073141
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