N1500i FACS Manual
36
Part No. 729-110-053 V.1.03
© 2018 Nelson Stud Welding, Inc. All rights reserved.
3.7 Inspection and testing of the weld
To assure the quality of stud welds, the following testing must be
carried out before, during and after production:
•
standard work testing
•
simplified work testing
•
continuous production monitoring
Standard work testing:
For welding according to the drawn-arc and short-cycle methods, ten
studs must be welded and the following tests carried out on them:
•
Visual inspection
(all studs
1
)
•
Bending test
(5 studs)
•
Macro section
(2 studs)
The test results must be documented and attached to the quality
documentation.
Simplified work testing:
In order to check the setting and functionality of the unit, three studs
must be welded prior to beginning the shift and the following tests are
to be carried out on them:
•
Visual inspection
(all studs)
•
Bending test
(all studs)
The test results must be documented and attached to the quality
documentation.
Continuous production monitoring:
In continuous production monitoring visual inspection of all welded
studs is in general sufficient. On suspicion of a faulty weld, a bending
test or a tension test must be carried out.
If the requirements are not met, a bending or tension test must be
carried out on the three previous and on the three subsequent welds.
The test results must be recorded in the production log.
1. See the following pages for information on visual inspection
Warning!
atisfactory!
