Continuous weld

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I have a procedure to weld a pad to a tank. One end of the pad is radiused. The procedure says to start 2" before the tangent and weld all the way around to 2" beyond the opposite tangent. It says, "IMPORTANT - This is a continuous weld. Do NOT stop or start while welding the extension pad radius." This procedure also calls for E7018 welding rod. It does not allow for an equivalent in wire. This is a 9/16" fillet weld that will be 51" long. I am trying to figure out how to weld a 51" long weld with 7018 rod without stopping. I think it actually means no unfilled craters or gaps should be left in the weld in this area, which seems kind of obvious. I understand that the opposite of a continuous weld is an intermittent weld? Or am I missing something?
Reply:Well obviously that note was put on there by some one with very little understanding of the realities involved in welding.   You're probably going to have to get some one further up the food chain out there and try and get them to understand the impossibility of that bit of engineering fantasy.
Reply:Two weldors, one bead. Lol. Eventual master of the obvious, practitioner of "stream of consciousness fabrication".  P.S. I edit almost every post because because I'm posting from my phone and my fingers sometimes move faster than my brain.
Reply:Originally Posted by Welding4FunI have a procedure to weld a pad to a tank. One end of the pad is radiused. The procedure says to start 2" before the tangent and weld all the way around to 2" beyond the opposite tangent. It says, "IMPORTANT - This is a continuous weld. Do NOT stop or start while welding the extension pad radius." This procedure also calls for E7018 welding rod. It does not allow for an equivalent in wire. This is a 9/16" fillet weld that will be 51" long. I am trying to figure out how to weld a 51" long weld with 7018 rod without stopping. I think it actually means no unfilled craters or gaps should be left in the weld in this area, which seems kind of obvious. I understand that the opposite of a continuous weld is an intermittent weld? Or am I missing something?
Reply:Yes, three seperate statments about the same weld joint.
Reply:Just weld it up. Make your stops and restarts nice and clean and it will be just fine.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:The main problem with that is when an auditor is reviewing this procedure, and ask why I stopped in the middle of a "no stop/start zone." I either need to gain a better understanding of what that statement means, and/or have the procedure changed/reworded.
Reply:Originally Posted by Welding4FunThe main problem with that is when an auditor is reviewing this procedure, and ask why I stopped in the middle of a "no stop/start zone." I either need to gain a better understanding of what that statement means, and/or have the procedure changed/reworded.
Reply:Are we talking something like this....mounting a pad horizontally off a cylinder?  I'm guessing the instructions are designed for heat zone precautions.  Stops are ok to reload but once weld is started, it must be completed (continuous) until beyond tangent.p.s.....being a 9/16" fillet, it's going to need 2 to 3 passes anyhowLast edited by OldSparks; 04-02-2016 at 03:18 PM.
Reply:Originally Posted by HT2-4956Well obviously that note was put on there by some one with very little understanding of the realities involved in welding.   You're probably going to have to get some one further up the food chain out there and try and get them to understand the impossibility of that bit of engineering fantasy.
Reply:CYA on that one ... get a higher up to sign off on it and explain the contradiction to them.AWS CWI xxxx21711968 SA200  Originally Posted by WelderMike  I hate being bipolar, It's awesome.
Reply:NO go get that 9 ft 7018 rod that is 3/8inch thick to do the weld with. Oh I forgot that you need a 500+ amp welder to burn the rod with. See no problem that thinking it through can be solved. now this is a joke guys so have a good laugh at it.Klutch 220si mig , stick, and dc tigHobart 140 AHP ALPHA 200X 2016Lotos LTP5000DSmith O/P
Reply:Originally Posted by tinker001NO go get that 9 ft 7018 rod that is 3/8inch thick to do the weld with. Oh I forgot that you need a 500+ amp welder to burn the rod with. See no problem that thinking it through can be solved. now this is a joke guys so have a good laugh at it.
Reply:Originally Posted by tinker001NO go get that 9 ft 7018 rod that is 3/8inch thick to do the weld with. Oh I forgot that you need a 500+ amp welder to burn the rod with. See no problem that thinking it through can be solved. now this is a joke guys so have a good laugh at it.
Reply:Typically that means once the weld in started, do not stop for cool down time. Proceed at continuous weld...Just long enough to stab a new rod and keep welding. It is based on substrate temp...do not allow sub pass cool down time. Start weld and finish weld.Miller TrailBlazer 251Miller HF-250-1Miller MaxStar 150 STLHyperTherm PowerMax 380 plasmaLincoln PowerMig 180Millermatic 252Miller Diversion 180
Reply:Another fine engineer that knows very little to nothing about welding, I've seen and had to deal with enough fine engineers for a life time.
Reply:Tack a bunch of rods together and make one nice long 7018
Reply:Originally Posted by SedanmanTwo weldors, one bead. Lol.
Reply:Originally Posted by waginTypically that means once the weld in started, do not stop for cool down time. Proceed at continuous weld...Just long enough to stab a new rod and keep welding. It is based on substrate temp...do not allow sub pass cool down time. Start weld and finish weld.
Reply:Originally Posted by waginTypically that means once the weld in started, do not stop for cool down time. Proceed at continuous weld...Just long enough to stab a new rod and keep welding. It is based on substrate temp...do not allow sub pass cool down time. Start weld and finish weld.
Reply:Originally Posted by OldSparksAre we talking something like this....mounting a pad horizontally off a cylinder?  I'm guessing the instructions are designed for heat zone precautions.  Stops are ok to reload but once weld is started, it must be completed (continuous) until beyond tangent.