MESSER SolidWELD MIG 250GS Guide D'utilisation page 23

4.0 Correct Application Techniques
Correct Application Techniques
Direction of welding.
MIG welding with solid wires takes place normally with a push
technique. The welding torch is tilted at an angle of 10° towards the
direction of welding. (Push technique)
10°
The influence of changing the torch angle and the welding direction
on the weld bead profile can be seen below.
Torch perpendicular to workpiece narrow bead width with increased
reinforcement.
10°
Torch positioned at a drag angle of 10° narrow bead with excessive
reinforcement.
Electrical stickout
C
Contact Tube Setback
S
Standoff Distance
V
Visible Stickout
A
Arc length
E
Electrical Stickout
Gas
Nozzle
Consumable
Electrode
Workpiece
Flux cored welding with cored wires takes place normally with the
drag technique. The welding torch is tilted at an angle of 10° away
from the direction of welding. For all other applications the torch
angle remains the same.
0–15°
90° 90°
Torch position for butt welds
When welding butt welds the torch should be positioned within the
centre of the groove and tilted at an angle of ±15° from the vertical
plane. Welding is still performed in the push technique.
45°
45°
Torch position for fillet welds
When welding fillet welds the torch should be positioned at an
angle of 45° from the bottom plate with the wire pointing into the
fillet corner. Welding is still performed in the push technique.
MIG 250GS Operating manual
C
V
S
A
0–15°
023
Contact
Tube
E