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6. Defects
This section presents a non-exhaustive list of faults that can occur during MIG/MAG welding.
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Channel
The channel is a linear defect. It takes the form of a groove located at the foot of the bead (figure 11 ). This defect reduces the effective cross-section and produces a geometric accident generating a high stress intensity factor and reducing the fatigue life of the joint. It is produced by various factors:
too high a feed speed ;
incorrect torch orientation;
arc voltage too high;
too high an intensity.
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Defects
Health and safety
Bibliography
Websites
Afnor (Association française de normalisation) website http://www.afnor.org
INRS (Institut national de recherche et de sécurité) website http://www.inrs.fr
Standards and norms
- Source de courant pour soudage manuel à l'arc à service limité - NF EN 50060/A1 - 03-95
- Arc welding equipment – Part 1: welding power sources - NF EN 60974-1 - 11-12
- Arc welding equipment – Part 6: limited-service equipment - NF EN 60974-6 - 05-11
- Welding consumables – General product standard for filler metals and fluxes for fusion welding of metallic materials - NF EN 13479 - 09-05
- Welding...
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