Soham Impex SI-TIG-300, Руководство по эксплуатации

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TIG Welding with Filler Wire Technique
Add TIG Filler Wire
It is necessary in many situations with TIG welding to add a filler wire into the weld pool to build up weld
reinforcement and create a strong weld. Once the arc is started the torch tungsten is held in place until
a weld pool is created, a circular movement of the tungsten will assist is creating a weld pool of the
desired size. Once the weld pool is established tilt the torch at about a 75° angle and move smoothly
and evenly along the joint. The filler metal is introduced to the leading edge of the weld pool. The filler
wire is usually held at about a 15° angle and fed into the leading edge of the molten pool, the arc will
melt the filler wire into the weld pool as the torch is moved forward. Also a dabbing technique can be
used to control the amount of filler wire added, the wire is fed into the molten pool and retracted in a
repeating sequence as the torch is moved slowly and evenly forward. It is important during the welding
to keep the molten end of the filler wire inside the gas shield as this protects the end of the wire from
being oxidised and contaminating the weld pool.
Form a Weld Pool Angle Torch Add TIG Filler Wire
Retract the Filler Wire Torch Move Repeat the Process