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Plug welding holes then drill and tap them?
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Just wanted to talk about welding I got the fever.Ok so we get these BOP (blow out preventers) and the threads are trash I was thinking how are we going to fix this, dads says plug welding.So he shows me what to do really hard at first, but now after about 50 holes of this stuff I got this looking good or way better at least.Anyhow you guys think plug welding holes is hard when you know they are got to be machine out no bridges gaps etc in the weld.Excited tommorrow to see how my weld turn out when I drill and tap it, so yah I got the fever.
Update: drill and tap came out really good I get off doing this stuff.
About the slag their is none you knock it out, then weld again little at a time and again etc.We heat the material up before we weld on it, so it's not hard when machine out.The right temp is when I spit on the material and it sizzles then I go ahead and weld no breaks or anything 6 hours straight welding.
Yes I drill out the holes with the threads trash about a 8th bigger, you can do it without drilling it bigger, but it's harder and not going to look right casue of the groves in threads make bridges and gaps in the weld.