1 Tack Welds
Prevent butt joint distortion by tack weldingthe materials
in position before final weld.
Workpiece distortion occurs when heat is applied locally to
a joint. One side of a metal plate will “curl” up toward the weld.
Distortion will also cause the edges of a butt joint to pull
together ahead of the electrode as the weld cools.
2 Square Groove Weld
3 Single V-Groove Weld
4 Double V-Groove Weld
Materials up to 3/16 in (5 mm) thick can often be welded
without special preparation using the square groove weld. However, when welding
thicker materials it may be necessary to prepare the edges (V-groove) of butt
joints to ensure good welds.
