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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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#1
Posted to rec.crafts.metalworking
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"heating rod" for an arc welder
looking to heat up a pretty big chunk of steel, preferably near (or
maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... how about just a piece of quarter-inch diameter round cold-rolled? was also thinking about maybe just a bare tig tunsten held in the stinger, using AC "cranked up high" - anybody ever tried that? sidenote: my old dialarc, recently aquired, is "known to function well" (my tests, with rods) on all its' AC and DC settings, but I haven't yet ever tried any of the TIG functions. it was an ebay buy "offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, toolie |
#2
Posted to rec.crafts.metalworking
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"heating rod" for an arc welder
dave wrote:
looking to heat up a pretty big chunk of steel, ... Carbon arc torch. Lincoln makes one. Here's one in VT: http://burlington.craigslist.org/tls/857638504.html Bob --- Nota for President |
#3
Posted to rec.crafts.metalworking
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"heating rod" for an arc welder
dave wrote:
looking to heat up a pretty big chunk of steel, preferably near (or maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... how about just a piece of quarter-inch diameter round cold-rolled? was also thinking about maybe just a bare tig tunsten held in the stinger, using AC "cranked up high" - anybody ever tried that? sidenote: my old dialarc, recently aquired, is "known to function well" (my tests, with rods) on all its' AC and DC settings, but I haven't yet ever tried any of the TIG functions. it was an ebay buy "offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, toolie I just got one really a lot like that. Hope you got the pedal, they're hard to find and really expensive (like $300). I found that Rustoleum Deep Blue paint (sold at Grainger, part no. 2FP62), color no. V2125, is a pretty good match. Not that I'm saying your welder needs paint! Good job sliding that 500 pound beast out of the back and dismounting it onto a cart. Lot easier if you have an engine hoist, cheap to rent for a day. You might find this interesting: http://www.tinyisland.com/DialArc%20HF%20Cart/index.htm I would take a crack at answering your question but when you say "pretty big chunk of steel" I'm thinking of something about the size of a big bathtub, and I don't think that's what you mean. :-) Grant ** Posted from http://www.teranews.com ** |
#4
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"heating rod" for an arc welder
Why not just build a nice BBQ pile, pump it up and toss it on? Don't
know about what the carbon infusion might do for your flavor of steel. JR Dwellewr in the cellar dave wrote: looking to heat up a pretty big chunk of steel, preferably near (or maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... how about just a piece of quarter-inch diameter round cold-rolled? was also thinking about maybe just a bare tig tunsten held in the stinger, using AC "cranked up high" - anybody ever tried that? sidenote: my old dialarc, recently aquired, is "known to function well" (my tests, with rods) on all its' AC and DC settings, but I haven't yet ever tried any of the TIG functions. it was an ebay buy "offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, toolie -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth If you're not the lead dog, the view never changes Doubt yourself, and the real world will eat you alive The world doesn't revolve around you, it revolves around me No skeletons in the closet; just decomposing corpses -------------------------------------------------------------- Dependence is Vulnerability: -------------------------------------------------------------- "Open the Pod Bay Doors please, Hal" "I'm sorry, Dave, I'm afraid I can't do that.." |
#5
Posted to rec.crafts.metalworking
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"heating rod" for an arc welder
On 2008-10-03, dave wrote:
"offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, you need this: http://www.harborfreight.com/cpi/cta...emnumber=35915 -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#6
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"heating rod" for an arc welder
On Fri, 03 Oct 2008 11:56:14 -0500, Ignoramus26581
wrote: On 2008-10-03, dave wrote: "offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, you need this: http://www.harborfreight.com/cpi/cta...emnumber=35915 He needed it. Now he needs the HF propane Weed Burner. The cheapest way I know to heat up a Big Chunk O Metal to red hot and not have to build a blazing bonfire Gunner |
#7
Posted to rec.crafts.metalworking
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"heating rod" for an arc welder
"dave" wrote in message ... looking to heat up a pretty big chunk of steel, preferably near (or maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... how about just a piece of quarter-inch diameter round cold-rolled? was also thinking about maybe just a bare tig tunsten held in the stinger, using AC "cranked up high" - anybody ever tried that? sidenote: my old dialarc, recently aquired, is "known to function well" (my tests, with rods) on all its' AC and DC settings, but I haven't yet ever tried any of the TIG functions. it was an ebay buy "offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, Carbon arc torches are neat, but put out a lot of UV, AND you have to be aware of the duty cycle at a given amperage -- usually max 20%. The Lincoln 225's were especially suited for carbon arcs, because at the 75 amp setting, they had a 100% duty cycle, used for resistive type heating on farms during frost, etc. BBQ'g the piece is a very good idea, as preheating *always* helps welding. But, if the material is thick enough or big enough, even a carbon arc torch might be spotty, and the best way is to use "rosebud tips" with O/A. They put out *boucou* heat, way more than any O/A welding tip or cutting torch. Not recommended with B-tanks, however, and some advise flashback arrestors in both lines of the torch handle. Not that expensive, either the rosebuds or the arrestors. You certainly will need to fill yer tanks for a rosebud! There's also an ice-melting/asphalt melting torch that works with propane, iirc. That's one big-assed welder you got! Be inneresting to know if you were able to fix the oomph problem. -- DT toolie |
#8
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"heating rod" for an arc welder
On Fri, 03 Oct 2008 12:15:27 -0400, dave
wrote: looking to heat up a pretty big chunk of steel, preferably near (or maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... how about just a piece of quarter-inch diameter round cold-rolled? was also thinking about maybe just a bare tig tunsten held in the stinger, using AC "cranked up high" - anybody ever tried that? sidenote: my old dialarc, recently aquired, is "known to function well" (my tests, with rods) on all its' AC and DC settings, but I haven't yet ever tried any of the TIG functions. it was an ebay buy "offloading the dialarc singlehandedly" site: http://machines.freehostia.com/diala...ng/index3.html thanks for insights and brain flash ideas, guys, toolie DO NOT use the welder! You will let out the magic smoke and then that nice old welder will be a big heavy doorstop. Gunner |
#9
Posted to rec.crafts.metalworking
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"heating rod" for an arc welder
On Fri, 03 Oct 2008 12:15:27 -0400, dave wrote:
looking to heat up a pretty big chunk of steel, preferably near (or maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... You are heating a "pretty big" chunk of steel to near or at red heat. Use firebricks or ceramic fibre to surround it and reflect the heat back and a propane torch to heat it. Acetylene or arc heating is like towing a camper van with a Funny Car. Mark Rand RTFM |
#10
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"heating rod" for an arc welder
On Sat, 04 Oct 2008 00:34:33 +0100, Mark Rand
wrote: On Fri, 03 Oct 2008 12:15:27 -0400, dave wrote: looking to heat up a pretty big chunk of steel, preferably near (or maybe even "at") red. my oxi-acet gas bottles are near empty. rather do it electrically than get the bottles filled. I have an old miller dialarc HF welder. what to use for the 'electrode' (heating rod, really)? I'm hoping for "minimal if any metal transfer" in the process... You are heating a "pretty big" chunk of steel to near or at red heat. Use firebricks or ceramic fibre to surround it and reflect the heat back and a propane torch to heat it. Acetylene or arc heating is like towing a camper van with a Funny Car. Mark Rand RTFM This is what he really needs http://www.harborfreight.com/cpi/cta...emnumber=91033 "Obama, raises taxes and kills babies. Sarah Palin - raises babies and kills taxes." Pyotr Flipivich |
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