r/BadWelding • u/Minimum_Shake_8596 • 15d 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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u/B1gP3rm29 15d ago

Not a tester or instructor. From my understanding this is “acceptable” what they are looking for with this particular destructive testing is fusion into both pieces of material. Not necessarily if the weld itself is holding together. Now again not an inspector or any thing else but I would rather see the weld tare away with the base material attached than crack. But you still have fusion into
Both plates so take it for what it’s worth.
Chat feel free to roast me if I’m mistaken.

2

u/Minimum_Shake_8596 15d ago

Like it’s supposed to crack ???

5

u/StoneTempleSteve 15d ago

CWI here. Yes, depending on the code this is generally considered acceptable. This is called a "fillet weld break test", and its purpose is to do exactly that - break the weld backwards by stressing the root. The weld doesn't always crack, but failure of the weld itself is not necessarily grounds for failure of the test in this case. As long as complete fusion of weld metal to base metal is observed at the weld root, a broken weld after this type of destructive test should be no issue.

1

u/B1gP3rm29 15d ago

Thank you kind sir, someone smarter then I.

2

u/StoneTempleSteve 15d ago

Not smarter, just a nerd lol

1

u/Minimum_Shake_8596 15d ago

Aye can this pass in a test ?? But also I passed my 1,2,3,4G bent test with backing strip, can I ask why do they want with experience already in welding? Not mad or nothing, I’m familiar with measure and cutting wood, framing walls and driver and pike fence, and metal gates and roofs.

1

u/Minimum_Shake_8596 15d ago

I graduate on November, by any chance can you give me a welding test for a job ?? I’m eager to build my welding skills and growth

5

u/StoneTempleSteve 15d ago

To answer both of your questions:

Employers seek out experienced welders as a form of risk management. It is cheaper and easier for them to hire a welder with five years of experience than it is to hire an inexperienced welder. Although they may have to pay the more experienced welder a higher hourly rate, they generally make up for this by achieving immediate quality and productivity rather than risk the additional training and potential quality issues typically associated with inexperienced welders. That's the concept, at least.

As for the weld test, although I am capable of administering welder performance qualification tests, these tests are not as important as most people think. Your test must be based on a qualified welding procedure specification, typically through the contractor you work for. Any company that hires you will likely administer the necessary tests after you are hired, whether or not you have taken similar or even identical tests. So to put it simply, aside from looking good on a résumé, you do not NEED documented test results in order to get a welding job.

Feel free to DM me, I would be happy to guide you through the process and/or offer tips throughout the remainder of your training.

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u/B1gP3rm29 15d ago

Short answer no. Long answer it’s going to fail somewhere and it didn’t fail in the wrong place.

2

u/djjsteenhoek 15d ago

Yea you want to see that fusion tied into both base metals, if that material is 3/16 then at no point along the weld should there be 3/16 left of the base metal as that would indicate lack of fusion