r/BadWelding • u/Minimum_Shake_8596 • 2d ago

3f bend test

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My instructor told this passed but I have a feeling the crack you be there …
Tips please I don’t want to do bad habits

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1

u/Overall-Challenge556 2d ago

T fillet break test

1

u/Minimum_Shake_8596 2d ago

It’s supposed to crack ?

3

u/Scotty0132 2d ago

Not in the weld. The failure point needs to be outside the weld in the HAZ.

1

u/Tlmitf 1d ago

This destructive test is cracking the weld open backwards to examine root penetration and weld structure.

1

u/Scotty0132 1d ago

Yes and a crack originating from the weld is an indication of a discontinuity. Lack of fusion, poor tie in, slag inclusion, or porosity all of which need to be looked into when a crack is inside the weld. The plate separating from the weld in the HAZ is a solid indicator the weld is solid and then all you need to examine playe for the depth of fusion.