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Been practicing my 6G uphill asme for about 4-5 months now (6010 root, 7018 fill & cap, 3/32 land & gap. Came a long way since i first started. Here are some PICS . Let me know what you guys think. Thanks, MillerManJohnnyPS- Sorry about the Shi**y Pics my camera phone sucksOh and by the way those are my fill passes, i took these photos before i started on the cap Attached ImagesLast edited by MillerManJohnny; 05-26-2012 at 03:31 PM.-MMJMiller PRO 300 CC/CV MitsubishiMiller Big Blue 502D CC/CV DeutzMiller XMT300Miller Suitcase 12RC Lincoln Invertec V310 ACLincoln Power Mig 250Lots and Lots of Dual Shield
Reply:Looking good keep practicing ive been welding for over 25 yrs and ill still go practice before a test if i havent been welding regular . Try and find a better grade of pipe to practice on similiar to what a real test will be on x42 or x52
Reply:Thanks for the advice spurwelder. I am not even exactly sure what kind of pipe that is that I was welding. i guess just regular 6" mild steel schedule 80. What exactly is the difference between what I am using and the x42 or x52 pipe? i take it those are seamless?? Thanks again for the advice. -MillerManJohnny-MMJMiller PRO 300 CC/CV MitsubishiMiller Big Blue 502D CC/CV DeutzMiller XMT300Miller Suitcase 12RC Lincoln Invertec V310 ACLincoln Power Mig 250Lots and Lots of Dual Shield
Reply:watch out for the big buggers on the root, 3 o'clock on the root. and on the hot make sure not to melt the edge of the bevel. Makes it a little harder to to keep and even cover pass.
Reply:definatly wouldnt pass xray yet my friend but just like everyone else who is a pipe welder in this world they were in the exact same spot as you at one point, and it takes alot of practice. This is how i do my pipes, i weave every single pass UNTIL i get to the cap where if i have a tig root i have to generally have to run 2 to 3 stringers. On that sch 80 pipe your more than capable to run weaves, it will make much smoother surfaces too accomodate your next sequence of passes, reduces almost any hills/valleys for slag to be trapped etc. Keep up the good work and always remember each pipe can be better than the last! ive added a picture of one of my 5 annual tests, 2 1/4% chromoly, this is my fill pass before capping just to give you an option. I find visuals always helped me years ago when learning. Attached Images
Reply:Pressure Welder - Thanks for the tips. I am in a pipe welding class at the local community college and my instructor never mentioned weaving on this 6g pipe. I just though that only stringers were allowed. The Weave would definitely be my first choice to ensure im not trapping any slag.thanks-MMJMiller PRO 300 CC/CV MitsubishiMiller Big Blue 502D CC/CV DeutzMiller XMT300Miller Suitcase 12RC Lincoln Invertec V310 ACLincoln Power Mig 250Lots and Lots of Dual Shield
Reply:btw thats a good looking weave-MMJMiller PRO 300 CC/CV MitsubishiMiller Big Blue 502D CC/CV DeutzMiller XMT300Miller Suitcase 12RC Lincoln Invertec V310 ACLincoln Power Mig 250Lots and Lots of Dual Shield
Reply:Instructors i have always found have their own way and never teach any diversity as generally they dont particularly like wondering off what theyve done for years and fair enough. Ive been weaving for years and years and have yet to fail an xray. Although keep in mind i dont weave past the rods capabilities, once you get into very large bevel's you have to start running weave "stringers" as it were. Youll have guys who will tell you that weaving isnt right and to a point their correct, you should avoid huge weaves, but really you dont need one especially on what your doing, on anything sch 80 your hardly moving your rod to get that weave, on my 2" sch 160 anything with a tig root i have to do two passes for my fill, i weave from bottom and wash to the top so i literally get undercut which is what i want, i then take a nicely rounded off 1/4" disc and i grind a nice groove where i had that convieniently placed undercut and then i proceed to run a fast stringer, low and behold a nice flat surface for capping. on my 6010 roots i can get away with a perfect weave for the distance.
Reply:Originally Posted by Pressure_WelderInstructors i have always found have their own way and never teach any diversity as generally they dont particularly like wondering off what theyve done for years and fair enough. Ive been weaving for years and years and have yet to fail an xray. Although keep in mind i dont weave past the rods capabilities, once you get into very large bevel's you have to start running weave "stringers" as it were. Youll have guys who will tell you that weaving isnt right and to a point their correct, you should avoid huge weaves, but really you dont need one especially on what your doing, on anything sch 80 your hardly moving your rod to get that weave, on my 2" sch 160 anything with a tig root i have to do two passes for my fill, i weave from bottom and wash to the top so i literally get undercut which is what i want, i then take a nicely rounded off 1/4" disc and i grind a nice groove where i had that convieniently placed undercut and then i proceed to run a fast stringer, low and behold a nice flat surface for capping. on my 6010 roots i can get away with a perfect weave for the distance.
Reply:I was always taught for the years i have been welding, the longer you keep the puddle fluid, the longer the puddle can float/force out any slag you may have in the previous pass, a weave will keep that puddle fluid for longer. Its hard to explain but the way i weave i dont move back and forth quickly? i more or less stay centered in the bevel and move 1/2 the rods diameter up, and back the same distance, i allow the puddle to do the work for me, in doing this it is much flatter, ripples of the bead are very defined, and when i get to the top all i have to do is take my trusty file and literally tap the weld at the top and the whole length of slag falls off. Ive had boiler inspectors over my shoulder watching me do this for years and have only once been asked why i weave my hotpass/fill and once i told him he just agreed and told me to continue. But again this is just my way, and it works for me their are pleanty of different acceptable ways to weld pipe. |
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