Tucker GmbH, Mail / Post: Max-Eyth-Str.1, 35394 Gießen, Germany
Stud welding unit N800i
As of 24.08.2021
Manual part number: BE 1227
6.7.2 “Drawn‐arc‐method“ ‐ Visual inspection
Inspection and testing of the weld is restricted in these operating and service
instructions to the visual inspection of welds. A description of the mechanical and
technological tests would go beyond the scope of these operating and service
instructions.
☞
See EN ISO 14555
1
for detailed information in this regard.
1. Perfect weld
Flash weld is even, glossy and closed. Stud length after welding
within tolerance. Corrective measures: Not necessary. No altera-
tion to the electrical and mechanical parameters.
2. Faulty weld
Constriction of the weld, stud too long. Corrective measures:
Increase plunge distance, check lift, check centring of the ceramic
ferrule. Decrease weld current and/or weld time.
3. Faulty weld
Feebly formed, uneven flash weld with a dull surface. Stud too
long. Corrective measures: Increase weld time and weld current.
Possibly dry ceramic ferrules in oven.
4. Faulty weld
Flash weld single-sided, undercutting. Corrective measures: Eli-
minate blowing effect, check centring.
5. Faulty weld
Flash weld low, surface glossy with intense spattering. Stud too
short. Corrective measures: Decrease weld time and weld cur-
rent, adjust plunge distance and/or damping
1. EN ISO 14555: „Welding Arc stud welding of metallic materials“ (2006)
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