Powered by mwForum 2. Not logged in American Welding Society Forum. I am the Quality Control Manager at a steel fab shop. The QC before me stopped getting along with management so I kind of have to learn as I go. In my shop I have a bunch of welders qualified on 1" plate in the 2G position with backing bar. The paper work says they are qualified to weld with or without backing.
Complete Joint Penetration Weld | American Welding Society Education Online
Running the Weld Test Centre here for the past 6 years, we have heard every excuse in the book for why a weld fails and I am considering a blog post listing the most interesting reasons we get. Many welders want to see their weld and understand why it has failed. Respecting that this is their livelihood we want to help them understand the failures that occur after many of the same questions, one of the women in the office set out to do some research. She has found some great information on some of the most common weld defects. So here we are, a series of three blogs on the top three weld defects that we see, here at our weld test centre. Miller, 2 nd edition, published Lack of Penetration therefore indicates that the weld metal is not making its way through the gap and into the backing bar.
Next to Welding Certification Welding symbols are one of the most misunderstood concepts in the welding profession. A lot of welders get by for their entire careers without having a good understanding of welding symbols. The truth is, depending on what kind of job you have, you might only have to know a small handful of welding or weld symbols. I once knew a welding supervisor who couldnt read welding symbols. He told me he just had his welders "weld the dog crap out of it" to make sure it would hold
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