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OldCelticMail

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  1. OldCelticMail

    Question for Welding Mail

    That's a pretty neat thing, I had no idea they made oxy/ace torches that are so cute. I might just try that out, as I do have a tig welder and also some oxy torch stuff, I feel like not having to grind a bunch of electrodes would help out a lot. Where on earth can such petite fire sources be found
  2. OldCelticMail

    Question for Welding Mail

    The hum of that TRL welder is very nice, sounds like the transformer has very very good eddy-current dampening. Most off-shore AC "welders" (broadly speaking) sound harsh and loud. I'll try to find videos or images of a tear down of the HF spot welder. Hopefully it's not just a single step-down transformer that's connected to the leads and powered by mains. Would I be surprised? No. Would I be disappointed? Yes.
  3. OldCelticMail

    Question for Welding Mail

    Indubitably, though a resistor might be handy if the current is not adjustable. Also found out the TRL Ring Welder is like 2v and 750A
  4. OldCelticMail

    Question for Welding Mail

    @technophebe I have a decent-ish welder I left at my parent's house (you cant weld in an apartment?!) that can do tig/stick and mig. The settings go down pretty low, I was thinking of trying to run it in tig mode (basically just stick but controlled by footpedal) and putting another ground in the torch power connection thing and clamping the positive and negative power leads to two (2 too) copper rails to use as the contact point for the rings. Basically I just want to run the power out of my welder into some resistance welding setup. What I'm thinking about is AC vs DC. AC tends to work very well on material that oxidizes easily and/or forms a very inert oxide coating (think aluminum) which the rapid switching of current (50hz!) pulls off of the surface of the metal. It's like welding electrode-negative. I'm concerned that if I don't have a shielding gas that the iron links will oxidize rapidly in atmosphere. I don't want to manage shielding gas in my apartment. The link welder that @Rob MacLennan posted seems to run at 60hz. That's about what a microwave-derived machine would work. I hope a low resistance weld will work, otherwise I'm going to silver-braze or silicon-bronze braze the links together with a small torch. If none of that seems feasible (or fast enough!) I might try bringing it to work and using the machines there somehow. There's plasma torches, acetylene torches, and ridiculously powerful mig welders. I don't know what to do honestly!
  5. OldCelticMail

    Question for Welding Mail

    The soft hum of an AC weld, how I envy thee! My welder is unfortunately DC only, and usually if a machine has AC only, there's a reason. AC welders are almost twice as expensive to manufacture as DC welders, and a machine with both is barely more expensive than AC only. Most AC welders are AC/DC welders, so seeing AC means there's a reason it's AC only. (The videos and the responses are very helpful thank you loads) It looks like its running really high amps and fairly low voltage. Would you say an arc ever appears? Does the entire end flow together at the weld site or is it more of a spotweld between the faces of the joint? Also you should wear polycarbonate or some other kind of ir/uv opaque glasses. The heat of glowing hot metal releases lots of infrared (heat vision!) which doesnt cause blindness instantly but instead causes cataracts to form sooner and worse in life. UV just kills the rods and cones in your eye, which is a sunburned retina. You shouldnt need a welding helmet unless it makes plasma or something crazy, so most standard polycarbonate safety glasses keep all the ir and uv out.
  6. OldCelticMail

    Question for Welding Mail

    Resistance welding... the only welding I don't do... I don't play with 2000w AC transformers often, but I do have a large welding machine with very finely controllable settings and exchangeable leads. Could I use my machine for resistance welding rings, likely by attaching the ground to a copper rod and the positive to another rod, oriented like seen in the video you linked? I have a foot pedal and the whole deal, and my machine can go as little as 20 amps to as much as 250. Besides, with the bronze tig brazing rods, I can braze the copper electrodes directly to a steel frame or ground etc which makes construction much easier. What current does the resistance welder you have normally pump out?
  7. OldCelticMail

    Question for Welding Mail

    Hello, I am new to this forum and only familiar with mail-weaving so I will be brief to not sound too dumb. I am a welder by trade, familiar with every process of welding from stick to metalcore ( its punkrock mig!) and was wondering what method to use on mild steel rings. Tig seems like a safe bet but my machine is scratch start and I don't like grinding my electrodes that much. Mig is a little hot usually for 16 gauge wire... This is what goes through my head when I'm not at work. Here's what I'm considering: Tig brazing (Lower heat, silicon bronze, looks very cool when polished and tensile strength 63,000psi when applied well, which is 300psi short of mild steel's ultimate yield point! Also can wick into joint and be smooth) Tig spot welding (easy, though expensive on welding consumables, would leave small indentations?) 0.025 solid wire mig (A lot cooler than most mig might work but would leave a proud blemish) Buying a shirt and giving up I am a welder and not a mail weaver, so I want to know what the flip side of this is. What do mail-makers prefer for welded rings? Are brazed rings even a thing? Why am I bringing work into my hobbies? Any help is appreciated!
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