ARC STUD WELD INSPECTION (VISUAL)

The MIDWEST FASTENERS ARC stud weld can be visually inspected by observing the fillet at the base of the stud. The illustrations and comments below will assist you in visually judging the quality of the weld.

GOOD WELD
Full, even,shiny,fillet all around stud.

HOT WELD
very shiny,low profile fillet extending beyond outside of ferrule.

COLD WELD
Small, uneven, dull apperaing fillet with fingers of metal extending through
vents of ferrule.

SHORT PLUNGE OR HANG-UP
No fellet, nostud burn-off, or undercut base.

MISALIGNMENT
Partial or no fillet, undercut, stud not perpendicular to base metal.

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