Subject	Yes you have to back purge stainless
Posted by	Jared Todd on January 31, 2006 at 6:59 PM
	This message has been viewed 38 times.
In Reply To	any welders on the forum? posted by suprakillinz(boulder soon) on January 31, 2006 at 05:49 PM
Message	Else it will create "sugar" oxides on the back that could flake off and break things and not to mention they hinder flow. Mild steel and aluminum you dont have to back purge. If you weld Ti you're supposed to but Ti is so hard to weld a lot of people that seriously do it weld it in an inert gas chamber that is filled completely with inert gas --------------------------------------------------- AIM= Honda Of Fury
Follow Ups	any welders on the forum? - suprakillinz(boulder soon) 17:49:36 01/31/06 TOM (n/m) - Spee 17:51:03 01/31/06 actually he was the one who told me to - suprakillinz(boulder soon) 17:54:31 01/31/06 it prevents corrosion on the weld on the inside. - ni[X]it 18:00:37 01/31/06 is that one of the reasons why the greddy manis - suprakillinz(boulder soon) 18:14:04 01/31/06 not sure, i've never seen how it failed. - ni[X]it 18:20:46 01/31/06 email him. - Spee 18:01:01 01/31/06 damn and I was just about to go get a - suprakillinz(boulder soon) 18:11:55 01/31/06 yeah, that'll make a real nce POP. (n/m) - WAGGZ 18:16:19 01/31/06 ever see an oxy acetylene weld pop? - drmx 18:24:41 01/31/06 I had a tip explode on me once. Thank god for - WAGGZ 18:30:52 01/31/06 just like when you use Argon to shield the weld side, - ni[X]it 18:01:35 01/31/06 Thanks nick:) - suprakillinz(boulder soon) 18:13:07 01/31/06 key points; - ni[X]it 18:19:43 01/31/06 good advice (n/m) - drmx 18:22:19 01/31/06 2nd (n/m) - suprakillinz(boulder soon) 18:24:48 01/31/06 Now why do you think there were so many - suprakillinz(boulder soon) 18:24:30 01/31/06 ive never seen the duprees fail.. only read about them. - ni[X]it 18:30:40 01/31/06 So many failures? Where did you get that information from? - Spongerider :) 18:37:23 01/31/06 I know 2 in NJ, another person who had 3 diff sets - suprakillinz(boulder soon) 18:51:05 01/31/06 I can tell you absolute certainty that no one has received - Greg D. (Specialty-Z) 19:07:04 01/31/06 to confirm what you say, both the cases I had seen - suprakillinz(boulder soon) 11:05:11 02/01/06 I highly doubt three sets in a row of Gregs mani's breaking. - Spongerider :) 19:56:57 01/31/06 once again, greg is a great guy, and stands by - suprakillinz(boulder soon) 11:15:21 02/01/06 I'm the old man of the forum, and I have never said - not-hrz 21:54:33 01/31/06 well if you want to get into it fine - suprakillinz(boulder soon) 11:08:50 02/01/06 and what should I apologize for? - suprakillinz(boulder soon) 11:11:19 02/01/06 what "so many" are you talking about? (n/m) - Spee 18:51:54 01/31/06 what type of 'gas' are they 'pouring' into it? - drmx 17:58:39 01/31/06 depends on the penetration of the weld and heat involved. - ni[X]it 18:04:01 01/31/06 could be... - drmx 18:13:52 01/31/06 it all really depends on the materials being welded. - ni[X]it 18:23:13 01/31/06 I've never filled tubes either... - drmx 18:28:09 01/31/06 thats what you call a "proof", screw algebra. :D (n/m) - ni[X]it 18:31:15 01/31/06 Argon gas, and there's a good reason for it. - jkeyser14 18:06:05 01/31/06 Argon/C02 actually...75/25% is what I use - drmx 18:19:57 01/31/06 Why would you choose MIG if you have access to TIG? - Scotts94z32 18:51:58 01/31/06 depends... - drmx 19:01:40 01/31/06 Mixed gas and stainless dont like to play well together - Jared Todd 19:00:53 01/31/06 did not know that, our stainless stations preset gas lines - drmx 19:05:28 01/31/06 I've tacked stainless w/ mixed - Jared Todd 02:35:46 02/01/06 Put in a VG30DETT engine in. Then he'll have a 3000cc - WAGGZ 18:44:13 01/31/06 *turboed* (n/m) - WAGGZ 18:46:07 01/31/06 300+hp in something that weighs 850 give or take - suprakillinz(boulder soon) 18:54:25 01/31/06 300hp?........ - WAGGZ 19:02:58 01/31/06 850 lbs!? Holy crap it must be huge... - drmx 19:04:09 01/31/06 he's adding the weight of the VG engine. (n/m) - WAGGZ 19:16:43 01/31/06 you figure hes about 190 - suprakillinz(boulder soon) 11:18:06 02/01/06 Yes you have to back purge stainless - Jared Todd 18:59:37 01/31/06 what makes welding TI so much harder? - suprakillinz(stuck in NJ) 19:01:53 01/31/06 Titanium reacts with oxygen, nitrogen, other metals - Joe(NoVA) 20:38:57 01/31/06 IT contaminates super easy - Jared Todd 02:33:30 02/01/06 ah, theres the tech description I was looking for, thanks! (n/m) - drmx 19:02:55 01/31/06
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