26
BOC Smootharc Advance II MIG 400R Operating manual
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.
Electrical stickout
The electrical stickout is the distance between the end of the contact
tip and the end of the wire. An increase in the electrical stickout results
in an increase in the electrical resistance. The resultant increase in
temperature has a positive influence in the melt-off rate of the wire that
will have an influence on the weldbead profile.
Influence of the change in electrical stickout length on the weldbead
profile.
The travel speed will have an influence on the weldbead profile and the
reinforcement height.
If the travel speed is too slow a wide weldbead with excessive rollover
will result. Contrary if the travel speed is too high a narrow weldbead
with excessive reinforcement will result.
Recommendation about travel speed are contained in the detailed gases
datasheets found on pages 14-15 of this manual.
Electrical stickout
Short
Normal
Long
Short
Normal
Long
Travel speed
Slow
Normal
Fast
Slow
Normal
Fast
