how to weld bronze on tig machine?

admin

I want to weld some bronze rings prior to lathe work on it, there are a big section (more than two in), i think the tig is the best way to make this becuase the stick electrodes are very, very, expensive here in venezuela, please someone help me with this! i have a syncrowave 200 and at this time i am training my self on tig welding
Reply:What type of bronze are you trying weld?http://www.brazing.com/techguide/pro...er_welding.aspMaybe this link will be of help to you.
Reply:Originally Posted by gerardo1601I want to weld some bronze rings prior to lathe work on it, there are a big section (more than two in), i think the tig is the best way to make this becuase the stick electrodes are very, very, expensive here in venezuela, please someone help me with this! i have a syncrowave 200 and at this time i am training my self on tig welding
Reply:I think I used Everdure as filler on these rails. But I just needed a touch of filler because I mostly used the base metal. In other words I fusion welded and just used wire to get me above the surface for cosmetic purposes. I did chamfer the ends of the bars to be welded to the continuous bar, a little bit. It is a nasty smelly type of weld though. Nice strong weld though. You have to preheat it.        Sincerely,             William McCormick
Reply:It does warp the heck out of the material. At "T" joints it bends the top of the "T" down towards the part you are welding to it. You either have to preload the joint, or have enough raw hide mallet or dead blow hammer, to knock it straight.        Sincerely,             William McCormick
Reply:Originally Posted by gerardo1601I want to weld some bronze rings prior to lathe work on it, there are a big section (more than two in), i think the tig is the best way to make this becuase the stick electrodes are very, very, expensive here in venezuela, please someone help me with this! i have a syncrowave 200 and at this time i am training my self on tig welding
Reply:William,Just to set the record straight, brass and bronze are not the same metals.Brass is made up of copper and zinc.Bronze is made up of copper and tin.OP's best bet is to braze (not tig weld) the rings to the shaft.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
Reply:I do know the difference well, they weld about the same though.        Sincerely,             William McCormick
Reply:If you polish both brass and bronze, it is hard to tell the difference between certain alloys of each. They both have a dead puddle when you weld them. And because either the filler or the base metal is made of low temperature metals or glass, when you add filler wire, that sends in new material to bond with the base metal. It often frees up the lower temperature metals and you get boiling crackling and blow back.        Sincerely,             William McCormick
Reply:Originally Posted by SundownIIIWilliam,Just to set the record straight, brass and bronze are not the same metals.Brass is made up of copper and zinc.Bronze is made up of copper and tin.OP's best bet is to braze (not tig weld) the rings to the shaft.
Reply:Cigweld Transmig 265seBoc 140amp StickBoss 200amp AC/DC TIGLincoln Electric Invertec V260-S
Reply:Originally Posted by Bozzza
Reply:Ye just thought it would be helpfulCigweld Transmig 265seBoc 140amp StickBoss 200amp AC/DC TIGLincoln Electric Invertec V260-S
Reply:A very good thing to see. I liked the way he was a able to get almost no spatter. A have never tried an aluminum bronze rod. I suspect they are tough to machine. One of the pipe benders my friend owns, has a bronze shoe or so we believe it to be. It is so hard that stainless steel will not cut it.        Sincerely,             William McCormick
Reply:I have always done BRONZE with AC and a gas mix....The same as doing anything Aluminum......zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:I never tried Bronze or Brass with AC, I have to try it next time. I always do them DC, that is the only way I knew to do them.I am usually doing solid stuff though. Like Brass handrail, that I have to bend, after I weld it. I polish it to a mirror finish and there cannot be visible blemishes. I don't know how AC would work on that, it is a solid nonporous weld? Those rails in the picture are one inch thick solid material. That is why I use the DC. So I can almost totally penetrate them with almost no filler wire. They are very strong. But I will definitely try the AC for bronze or brass sheet next job I get. That might be ideal for sheet. We went to take a bow out of the top rail of those one inch thick Rails. And we were afraid of the force we used on it. We ended up hitting it with a giant raw hide mallet while it was under pressure. We have a Claw, thing that is hydraulic and runs on a portable hydraulic system, to straighten inch and a half stainless steel pipe, after we weld it, and I was going to set it up for the hand rail. But we tried loading it under pressure and bashing it with a large Raw Hide mallet, and we moved it, after about five good shots. But I could not believe how strong that stuff is. Unless I am ordering the material, I almost cannot tell the difference between brass or bronze. I have welded brass that welded more like bronze and I have welded bronze that welded more like brass. We were given the material for those, one inch solid rails by the customer. We designed cut and welded them for him. To be honest I think they were bronze, because they did not spatter at all. But it might have been the large heat sink that kept them from spattering?       Sincerely,             William McCormick
Reply:William,What filler are you using to repair bronze props?  Nibral?What applications are you finding that use monel for boat shafting?  Most of the better maufacturer's use Aquamet 22.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
Reply:I don't repair bronze propellers. I used to know some guys at the bronze casting and propeller design shop in Roosevelt here on Long Island. A friend of mine had an old friend in the plant, and went there to see what they were doing. But I never got into that type of weldingBut for bronze and brass I use Everdure. It has issues with its hardness, when it comes to filing or machining, but wow it grips. I have welded a big cast iron vice body with it. I was doing the same thing that broke the vice the first time, expecting it to fall on the floor. But it did not break. That stuff is just sick. I did a small diameter Hossfeld bending die that I cracked bending hard stainless steel pipe. I used Everdure to fix it. So far it has held up excellently. They got carried away with Everdure though, I think. They were using it in sheet metal shops in MIG machines. Or something very close to it. Wow those fumes all day must be special. Ha-ha. Most of the older boats use Monel shafts. If I saw a new shaft today I would probably assume it was monel unless someone mentioned it might be Aquamet 22, which I never heard of. Is Aquamet 22 very shinny? Very tight pored more of a chrome looking product? I did notice that material once. It just did not look like that pale Monel I was used too. Is Aquamet as strong as Monel? The Nickle alloys are just insane sometimes. You almost cannot work with them. I will check out the Aquamet 22 though.        Sincerely,             William McCormick
Reply:Thanks for all of you, excuse me for my limited english, ok i try to find first the filler, but at this time the things are more explicit, thanks again for your attention
Reply:http://www.ampcometal.com/en/print.php?page=welding