Performing Nugget Strength Tests - Car-O-Liner CTR9 Instruction Manual

CTR9

6.12 Performing nugget strength tests

49023, EN - rev. 4, 2020-01
It is important that the weld nuggets have sufficient quality. The quality of
the weld nuggets are checked with strength tests. When performing these
tests, you are ensured that the set weld current and weld time is sufficient.
To perform a simple strength test, follow the instructions below:
1. Set the desired welding program (see chapter 6 "Welding modes")
and weld two metal sheets of the same thickness as those to be
welded on the vehicle.
2. Place the welded metal sheets, with weld nugget pointing
downwards, in a vise and knock them apart with a sledge hammer.
3. Now place the metal sheets according to the picture and bend them
apart with a set of pliers.
4. If the weld nugget is successful, the metal sheet - not the weld nugget
- shall break.
5. Measure the weld nugget to check that the diameter is correct.
Car-O-Liner Group AB
101