Problems with the pool at the very end of a SAW weld

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Hi!I am currently working in the BOP valve repair world. The company I am working at is setting up a sub arc from ESAB (the model A2tf J1). Even though we are at the point of setting up the parameters for finding our best combination of them, we are still having troubles with the quality of our welds. The machine we have allows us to select the welding end parameters such as percentages of current, voltage and velocity, but we still haven´t found the best solution for avoiding this "ramp" at the very end of the weld. By the way, we have Spoolarc 40 2.4mm electrode from ESAB and OK Flux 10.62 also from ESAB.Here are the corresponding pictures to this problem.

If anyone can give me a hand with this issue I would be more than greatful! And also, if anyone has interest in the oil and gas repair industry, I can provide any pictures or information you are willing to have! Best regards!Nicolas.
Reply:Have you contacted ESAB for support?ChrisAuction Addict
Reply:Actually, its not a problem from the machine but a problem from the weld end parameters, i know that with a trial and error procedure it will be solved, but perhaps anyone has setted the parameters in a GMAW welder and obtained good results.
Reply:  Would it be possible to post a picture of the opposite side of the plate? Or maybe you can just describe it. I was just curious if the ramp effect could be a result of too much voltage at the amperage you are running at, causing the weld metal to sink into the plate. Other than that, I probably better quit while I am ahead, since I am just the villageblacksmith. But the discussion and final solution will interest me. I certainly wish you well. Sent from my E6810 using http://tiny.cc/Forums_reader
Reply:

Originally Posted by milomilo

Have you contacted ESAB for support?
Reply:Tomorrow I will be posting the pictures of the back plate but anyways it has almost 28 mm of thick and with this paramaters we have not had any „back penetration“ or „pass through“. I have setted the parameters of the final ramp to last 1.5s, 90% of the initial current, 60% of the initial voltage and 50% of the original speed but still have not been able to achieve a proper  weld from the beginning straight to the end.