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Idiomas disponibles
Idiomas disponibles
Excessive Penetration
Possible Causes
Excessive heat input.
7.5.
Lack of penetration
Lack Of Penetration
Possible Causes
Improper joint preparation.
Improper weld technique
Insufficient heat input.
7.6.
Burn through
Possible Causes
Excessive heat input.
7.7.
Waviness of bead
Possible Causes
Unsteady hand.
7.8.
Distortion
Base metal move in the direction of
the weld bead
Good Penetration
Select lower voltage range and reduce wire feed speed.
Increase travel speed.
Lack Of Penetration - shallow fusion between weld
metal and base metal.
Good Penetration
Material too thick. Joint preparation and design must provide access to
bottom of groove while maintaining proper welding wire extension and
arc characteristics.
Maintain normal gun angle of 0 to 15 degrees to achieve maximum
penetration.
Keep arc on leading edge of weld puddle.
Be sure welding wire extends not more than 13 mm beyond nozzle.
Select higher wire feed speed and/or select higher voltage range.
Reduce travel speed.
Select lower voltage range and reduce wire feed speed.
Increase and/or maintain steady travel speed.
Support hand on solid surface or use two hands.
Distortion - contraction of weld metal during welding that
forces base metal to move.
EN
Corrective Actions
Corrective Actions
Burn-Through - weld metal melting completely
through base metal resulting in holes where no
metal remains.
Corrective Actions
Waviness of Bead - weld metal that is not parallel
and does not cover joint formed by base metal.
Corrective Actions
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