Steven Fabrizio Posted October 25, 2012 Share Posted October 25, 2012 Quote Link to comment Share on other sites More sharing options...
Maillemaker Posted October 25, 2012 Share Posted October 25, 2012 Sweet. Safety glasses are meant to protect eyes, though, not foreheads. Quote Link to comment Share on other sites More sharing options...
forgemaster Posted October 25, 2012 Share Posted October 25, 2012 Rail welding gangs are one of our biggest customers for wedges hot sets and cold sets and punches. Quote Link to comment Share on other sites More sharing options...
Drewed Posted October 25, 2012 Share Posted October 25, 2012 I think I need a set of those pants. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 25, 2012 Share Posted October 25, 2012 That was the evening demo at one Quad-State. They've got it down to a science these days! Quote Link to comment Share on other sites More sharing options...
macbruce Posted October 25, 2012 Share Posted October 25, 2012 Thermite looks like wicked fun and it's easy to make as per Google.....I think it would be fun to weld (meld) sculptural elements with it, SS probly won't approve but I gotta be me..... :D Quote Link to comment Share on other sites More sharing options...
Chinobi Posted October 25, 2012 Share Posted October 25, 2012 It is quite fun and far too easy to make but despite the typical magnesium strip fuse you CAN ignite it with open flame(personal experience), so consider yourself warned. Quote Link to comment Share on other sites More sharing options...
Dogsoldat Posted October 26, 2012 Share Posted October 26, 2012 I wonder just what the carbon content of the waste igots off the sides are unless thats all slag? could be close to to wrought. Quote Link to comment Share on other sites More sharing options...
Chinobi Posted October 27, 2012 Share Posted October 27, 2012 chemically it should be pretty close to nil unless they have included some kind of admixture to their recipe. the process i am familiar with is just a redox reaction shifting oxygen atoms from iron oxide (labratory grade rust) onto atomized aluminum, leaving you with pure iron and aluminum oxide in the slag. Quote Link to comment Share on other sites More sharing options...
bionicarm Posted October 27, 2012 Share Posted October 27, 2012 not to be derogatory of these gentlemen, but when he's beatin on it with the hammer it looks like a terrible weld. Anyone else think so? Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 27, 2012 Share Posted October 27, 2012 The mix they use for welding has excess iron/steel in it so the reaction melts it as a suitable filler, not "pure" iron. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
iron woodrow Posted October 27, 2012 Share Posted October 27, 2012 not to be derogatory of these gentlemen, but when he's beatin on it with the hammer it looks like a terrible weld. Anyone else think so? naw, he is tring to release the flash while it is still hot. prior to grinding Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 29, 2012 Share Posted October 29, 2012 Note that wrought iron is a composite characterized by the presence of silicate spicules, up to over 100,000 per sq inch! So you could have the exact same chemical content for an alloy and it still would NOT be wrought iron without the silicate spicules, (Though I think it would be quite difficult to get that much silica into a straight alloy steel...) Some of the sprues from thermite welding will harden---by personal experience and the dendritic pattern of the coarse crystallization can be interesting. Anybody know if they have enough carbide formers to thermocycle them and see how close to wootz you can get? Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted October 29, 2012 Share Posted October 29, 2012 I got to cad weld a few large transformers last week, This is not the Fe AlO2 mix, becauise we want a copper based residue to weld the copper wire to the steel beams. The electrinic ignitor and fuses were left at another job site many miles away, so I had to do it the hard way... lol I had fun. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 29, 2012 Share Posted October 29, 2012 There was a fellow over at the Sword Forum International who was using thermite to make custom alloys for his blademaking. Sounded like a lot of fun until the post that he was no longer going to do that anymore as he was going blind from it. Quote Link to comment Share on other sites More sharing options...
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