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I am having a hell of a time with my company CWI. I am trying to get the shop switched to pulse MIG pipe production, and me & him are bumping heads along the way. He gave me a WPS with 75/25AR/Co2 which will not work for pulsed. I consider pulsed MIG a spray transfer, he says that is not possible, and getting a WPS that calls for 90/10 and spray transfer on a 6g is impossible, but I find that hard to believe with so many contractors using this method in the fab shop. I just need a precertified WPS, if anyone has one anywhere, can I get some details on it. I know its out there, but because he has not seen it, it does exist. He believes that because he has this short circuit 75/25 WPS, any weldor should be able to pass it. Anybody use a shielded fluxcore on the pulse? WPS?Constant Current Weldor.
Reply:Originally Posted by DavidbrownI am having a hell of a time with my company CWI. I am trying to get the shop switched to pulse MIG pipe production, and me & him are bumping heads along the way. He gave me a WPS with 75/25AR/Co2 which will not work for pulsed. I consider pulsed MIG a spray transfer, he says that is not possible, and getting a WPS that calls for 90/10 and spray transfer on a 6g is impossible, but I find that hard to believe with so many contractors using this method in the fab shop. I just need a precertified WPS, if anyone has one anywhere, can I get some details on it. I know its out there, but because he has not seen it, it does exist. He believes that because he has this short circuit 75/25 WPS, any weldor should be able to pass it. Anybody use a shielded fluxcore on the pulse? WPS?
Reply:@ Davidbrown - Your CWI is grossly misguided and incorrect in spec'n C25 for pulsed axial spray or axial spray. 90/10, 95/5, 98/2 ---- yes. C25 ---- no. Concur with Shovelon. See if the boys on AWS can provide any data for you."Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:He just knows he has pre-qualified WPS. Other management from business and engineering backgrounds are his side. Im the new kid on the block with a fab background, and there biggest complaint is having additional stock gases, nevermind we will essentially replace 75/25 if we can make an effective switch. The frustration is never ending. Does the AWS consider pulse mig spray or globular- the point is one glob per pulseConstant Current Weldor.
Reply:Sample WPS, GMAW-P for 3G with 80Ar/20CO2. Open root, double bevel joint with back gouging.www.scribd.com/mobile/doc/120446089#fullscreenWhat's your application and joint design?Last edited by ManoKai; 08-02-2014 at 08:38 PM."Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:Originally Posted by DavidbrownHe just knows he has pre-qualified WPS. Other management from business and engineering backgrounds are his side. Im the new kid on the block with a fab background, and there biggest complaint is having additional stock gases, nevermind we will essentially replace 75/25 if we can make an effective switch. The frustration is never ending. Does the AWS consider pulse mig spray or globular- the point is one glob per pulse |
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