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  • welderskelter
    replied
    Joelee. Back in the 80s. I was working at a place building heater treaters for the oil fields. Its has a tank about 10 ft long and 4 ft. in diameter. I came in one night to find a tank on my rolls that had been stringered with stick and capped with wire. NoNo! Cap was full of pinholes and besides there is no code for it so the cap had to come off. The forman wanted me to grind it off. There was a gouger laying in the break room. I got it and started ripping it out and when I raised my helment there was about 12 guys watching behind me. I couldnt believe that that many welders were inexperienced on one of them.

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  • JoeLee
    replied
    Originally posted by Bob Engelhardt View Post

    The YouTuber "Cutting Edge Engineering" uses it to remove really large quantities of steel, cheaply. E.g., https://youtu.be/5nfxXcAC_Eg?t=197
    Yes, it's good for stuff like shown in the video. Gouging out a cracked weld for repair etc. Actually what that guy did in the vid was a neat clean job. I tried it once about thirty years ago with a carbon rod and never tried it since.
    It's faster than using a torch.

    JL..............

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  • Bob Engelhardt
    replied
    Originally posted by JoeLee View Post
    Arc gouging is a pre-historic way of doing something / anything.

    JL...............
    The YouTuber "Cutting Edge Engineering" uses it to remove really large quantities of steel, cheaply. E.g., https://youtu.be/5nfxXcAC_Eg?t=197

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  • JoeLee
    replied
    Arc gouging is a pre-historic way of doing something / anything.

    JL...............

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  • boslab
    replied
    My first experience with a carbon arc torch was quite funny, I merely struck the arc with EW9 goggles on, couple of hours later felt my nose stinging, it was like Rudolph, glowing red severe sunburn, I discovered the hard way how much UV comes off an arc, it didn’t take long to really burn
    mark

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  • JRouche
    replied
    Originally posted by Ed ke6bnl View Post
    I just picked up what I thought was silicon bronze rod, new maybe 36 in. what I did was tried to weld it with my tig torch and it fumed up and decided it was brazing rod and not silicon bronze. but it came with good 10 lbs aluminum rod that I can use.
    I have used it as a filler for both gas and tig, I do both pretty well.. I have used it a braze filler, lowered temp and it was very nice.

    I "braze weld" with these rods. I also use them with high heat. I use them as filler for cast iron fixes. Tig welding. Thats what I do. JR

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  • JRouche
    replied
    Originally posted by Ed ke6bnl View Post
    I just picked up what I thought was silicon bronze rod, new maybe 36 in. what I did was tried to weld it with my tig torch and it fumed up and decided it was brazing rod and not silicon bronze. but it came with good 10 lbs aluminum rod that I can use.
    It is a lil funny for me. I am within walking distance from ED..

    Golly! Its like teaching people all over again.. The people are getting better. JR

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  • welderskelter
    replied
    I knew some else would tell you. It has been a long time since I done it. It might be a bit prettier with tig but this is cheaper. Not sure tig is prettier on galvanized sheet metal

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  • MichaelP
    replied
    Copying my old post on carbon rod brazing...

    You can just buy a 3/16" gouging carbon electrode and use it the same way you use a regular electrode (with the ground wire clamped to the work). Cut it in half for convenience. Sharpen the shortened electrode with your pencil sharpener. Keep amperage low: just enough to create a sustainable arc. Start with about 25-35 Amp DCEN (DC, electrode negative). Use 1/8" silicon bronze rod as a brazing rod.

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  • Georgineer
    replied
    Originally posted by welderskelter View Post
    Doozer, we always used 1/4 in. carbon. Dont know if bigger or smaller will work.
    Dad used the carbon rods out of bicycle headlamp batteries. I guess they are also about 1/4" diameter. It worked for him!

    George

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  • welderskelter
    replied
    Doozer, we always used 1/4 in. carbon. Dont know if bigger or smaller will work.

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  • welderskelter
    replied
    Doozer, I am sure you could just figure it out , its simple. I use d to braze duct work with it. I havent learned to do videos yet. Just sharpen a carbon arc rod in a pencil sharpener. Then place it in your rod holder with about 1and a half stick out . Set the welder on about I think about 90 amp. Get about 3/32nd silicon bronze with no flux. Place the bronze against metal and touch only the bronze with carbon arc. You will need the same welding lense as with welding. Being a tigger you probably have the feed down pretty good. Memory doesnt work as good as it used to so you might have to play with it to get the right polarity. Its either straight or ac. Maybe someone else can verify which. By the way. They used to use 2 carbons to make heat this only takes one. Ground goes on work . Good luck. It should go on smooth and fast. It will be quick like stainless on aluminum. Stay out of fumes.

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  • Doozer
    replied
    Brazing with carbon arc is something I have not tried
    but would love to see the process. Do you ever post videos?
    Seriously, that would be pretty neat to see.

    -D

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  • welderskelter
    replied
    Ed, I might try to braze with a carbon arc to see if it is silicon. My tig torch is to hard to hook up at the moment , and carbon would be quick as it is cold in shop.

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  • welderskelter
    replied
    Doozer. different rod.
    reggie obe. I never sell stuff for 2 dollars a lb. It would cost me a lot more than that. It doesnt owe me anything.

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