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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Can I use a TIG welder to melt metal in small crucibles?
Ignoramus29878 wrote: The subject says it all. I wonder if I can use a tig torch to melt metal in little (or not so little) crucibles. With at least 5kW at the arc, I could melt pretty big stuff. i Just curious and throwing gas on the fire here....due to the localized heating aspect of the Tig arc, would there be a problem with uneven thermal expansion of the crucible that could lead to cracking? A standard oven/furnace heats the crucible fairly uniformly but a tig melt would have far from uniform heat distribution. Koz (who is interested in giving it a try...great idea for small melts) |
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Can I use a TIG welder to melt metal in small crucibles?
Ignoramus29878 wrote:
On Thu, 20 Oct 2005 12:41:11 -0700, Koz wrote: Just curious and throwing gas on the fire here....due to the localized heating aspect of the Tig arc, would there be a problem with uneven thermal expansion of the crucible that could lead to cracking? A standard oven/furnace heats the crucible fairly uniformly but a tig melt would have far from uniform heat distribution. Koz (who is interested in giving it a try...great idea for small melts) That's a great question. I do not know what the answer may be. i Keep the tip moving? I wonder how the big boys do it. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
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Can I use a TIG welder to melt metal in small crucibles?
Ignoramus29878 wrote:
On Thu, 20 Oct 2005 12:41:11 -0700, Koz wrote: Just curious and throwing gas on the fire here....due to the localized heating aspect of the Tig arc, would there be a problem with uneven thermal expansion of the crucible that could lead to cracking? A standard oven/furnace heats the crucible fairly uniformly but a tig melt would have far from uniform heat distribution. Koz (who is interested in giving it a try...great idea for small melts) That's a great question. I do not know what the answer may be. i Well jewelers heat with a gas torch all of the time, I don't think that is a whole lot less concentrated is it? jk |
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