Controlling welding parameters like amperage and voltage is vital. If the puddle becomes too fluid, it will sag uncontrollably. Welders often use a slightly lower amperage for 2G than they would for flat (1G) welding to keep the puddle "stiff." The 2G Weld Test
| Defect | Likely Cause | Correction | |--------|--------------|-------------| | Lack of fusion at sidewall | Angle too steep, fast travel | Reduce angle, slow down | | Overlap on bottom edge | Too much weave, low amps | Use stringers, increase heat | | Sagging root | Gap too wide, too slow | Reduce gap, increase travel speed | 2g weld
The 2G position is notoriously tricky for beginners for one main reason: Controlling welding parameters like amperage and voltage is