Soyer BMS-9 Operating Instructions Manual page 47

Visual inspection
Welding image Note
Good welding joint.
Optimum setting.
Even, bright and closed welding bead.
Poor welding joint, e.g. because the welding energy
is too high or the immersion distance / lift is too
small.
The stud is constricted to the welding joint. The
stud is only partially welded.
Poor welding joint, e.g. because the welding energy
is too low or the lift is too short.
The welding bead is weak and unevenly formed.
Poor welding joint, e.g. due to a blow effect or a
welding gun that was shaken or applied at a slant.
The stud flange is not welded completely and has
visible imperfections. Undercuts are visible.
Operating instructions Soyer Bolzenschweißtechnik 47