MasterCraft MIG 180 Instruction Manual page 40

Weld bead formation
The formation of weld bead depends on the
welding speed and arc conditions.
Ideal weld:
• The bead will lay smoothly over the
work without ragged edges
• The base metal puddle will be as deep as
the bead that rises above it.
• The welding operation will make a
crackling sound.
Faster weld speed:
• The bead will be high and irregular
(fig 2O).
• The arc will be difficult to maintain.
Slower weld speed:
• The arc will burn through light metals
• The bead will undercut the work.
• The bead will be flat and porous
(fig 2N).
.
(fig 2P)
.
MIG 180 INVERTER WELDER 058-9306-4
fig 2N
fig 2O
fig 2P
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