Weldtronic TM250C Operating Manual page 31

Gun movement during welding
Weld bead shape as well as penetration and overall joint quality are affected by torch angle, direction of
travel, electrode extension, travel speed, thickness of base material, wire feed speed, and voltage.
Using constant parameters welding material deposit and penetration
1........ Stringer bead – steady movement along seam
2........ Wave bead – side to side movement along seam
TitanMig AU 250C Manual_ Issue A 0415
varies with torch travel speed.
For adequate penetration to
be achieved welding source
must provide more power at
higher speeds.
Dragging the torch results in
deeper penetration
narrower weld. Arc strength
prevents slag to enter the
molten material.
When pushing the
penetration will be shallower
and the weld wider. This
movement is suitable for thin
plates because of smaller heat
input.
3........ Wave patterns
Use weave patterns to cover a
wide area in one pass of
electrode.
Normally a single stringer bead
is satisfactory for most narrow
groove weld joints. However for
wide groove weld joints or
bridging across gaps, a weave
bead or multiple stringer beads
work better.
and
torch
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