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Merry Christmas Everybody. Still working in a factory doing stainless steel welding. Customer asked me if I could make a cleaning attachment out of copper plumbing components. Decided to try and it came out quite well. If you want to criticise please bear in mind that this was my first time welding copper and that the piece has not been cleaned yet. Just wiped with scotchbriye pad. What amazed me was that the components were only 0.9 mm thick but still needed 120 amps. Totally different welding. Used copper welding rod. Also used tig brazing for the first time to join brass component to copper tube. I am constantly amazed how versatile TIG is. Knocking off now. Happy holidays everbody and thanks for a great forum. Hope I got the pictures right. Only phone pictures, therefore no close ups. Attached Images
Reply:Good job!This last summer my parents house had a copper water line crack. Instead of soldering all the joints of a new section I just TIG welded everything together. Works great!
Reply:Very cool. I've been wanting to try copper for a while, just never have any copper laying around. Good job
Reply:Sil-Phos wouldn't do? I mean sweating copper works fine for most cases but where high temps or corrosion exist 15% silver brazing alloy works just fine.
Reply:Hey, how did you weld that together? Reason I ask is because my 51 Shorthood has a copper radiator and its broken around the spout up at the top.. Cracking - and I was xomtplating on welding a bead aroundThe crack -Or atleast an autogenious weld but I most likely suspect that the puddle will not be as willing ad free flowing as stainless is - what tig wire did you use and did you purge the inside for the butt welds? Great pictures & welds!46 sae30047 sa200 w/Wisconsin VF451 shorthood56 shorthood56 shorthood68 redface69 redface07 ranger 305G13 sae300Inconel/Hastelloy SS Duplex Chrome/Carbon Tig F3Downhand STT/RMD F3F4 B Pressure
Reply:Originally Posted by ThortonHey, how did you weld that together? Reason I ask is because my 51 Shorthood has a copper radiator and its broken around the spout up at the top.. Cracking - and I was xomtplating on welding a bead aroundThe crack -Or atleast an autogenious weld but I most likely suspect that the puddle will not be as willing ad free flowing as stainless is - what tig wire did you use and did you purge the inside for the butt welds? Great pictures & welds!
Reply:i've heard you can use electrical wire as a filler,,
Reply:Originally Posted by weldbeadi've heard you can use electrical wire as a filler,,
Reply:Originally Posted by dhemWhile not ideal, this is what I use to weld all my copper projects. Some day I will get around to ordering some actual ERCu filler rod.
Reply:Originally Posted by Oscarsilicon-bronze is also suitable, no?
Reply:Nice work man. I use SiB on copper a lot, mostly in art applications, mostly to ss/ms/galvanized....kind of a hybrid braze/weld. Parent metal works well for copper to copper, and I've done the electrical wire too. The amount of amps it takes is pretty crazy.browndogwelding.com@welderassassinMy Blog on The Fabricatorfacebook.com/BrownDogWelding
Reply:I TIG welded a copper box once, out of 1/4" copper plate, it took so much heat it was crazy!! I used deionized copper rodsWelds look nice, its tricky welding copper, but its fun too. http://www.philswelding.com
Reply:Yes, I would say copper has a smaller window of solid-blown threw than aluminum.
Reply:This comes from the Wisconsin Wire Works page on copper filler rod. They say "ER Cu filler metal is deoxidized copper with small quantities of phosphorus, silicon, tin, manganese and silver. The phosphorus and silicon are primarily deoxidizers, and silicon and other elements improve fluidity and ease of welding."One of the biggest problems I have when welding copper is how hard the puddle is to control at times. It makes it hard to get nice regular beads and when aesthetics counts such as on art projects it's really frustrating. ER Cu filler giving more fluidity is the biggest reason I'd like to try it and I'm sure the deoxidizers help as well.Miller Dynasty 200 DXBuildPro TMA52238 (38" x 22")Miller MP-10 & Jackson Nexgen EQC20 Ton Press & Swag HD Press Brake
Reply:Nice job |
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发表于 2021-8-31 23:10:33