 help from welding guys, having trouble with mig flux cored wire |
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| wayne1234 |
 Apr 27 2009, 07:23 PM
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Member  Group: Members Posts: 260 Joined: 6-April 09 From: indianapolis in Member No.: 10,238 Region Association: None  |
OK, I have a fairly new Lincoln 175hd welder, it is 220volt I have have not done a ton of welding but enough to to be dumb I guess. what I have welded in the past is 1/4" thick metal like a totally fabbed snow plow mount for my ram truck. shortened and welded a steel flatbed(thinner metal for top , diamond plate) to same truck. various trailer repairs. and such.,,, so my new to me 914 needs a few welds like in the front trunk where the previous owner did as trunk patch. I start by filling in a couple of small screw holes, that goes fine, then I tried the seam and it seems like I am blowing right through the metal. or it keeps puddling like a drip below.? and forget trying to fill a small gap..... Now let me say I am using FLUX CORED WIRE. with no gas. (I haven't ever used gas) is that my problem? did I just get away with it in my thicker metal? I know a buddy told me flux-cored gets more penetration. this is the first "sheet metal" welding I have done. Any input is welcome.
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| VaccaRabite |
Apr 28 2009, 10:57 AM
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En Garde! Group: Admin Posts: 13,729 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region 
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I did my entire care with flux core as I could not find somone selling gas, and I had a lot of flux cored wire. I was using a 120V 15 amp welder, so not as much power as yours. Welding thick metal is EASIER then thin metal.
Use a copper backer (like a mashed flat piece of copper pipe) behind your weld. It will act like a heat sink, and will help prevent blow through. Hold it in place with either clamps or a strong welding magnate. Weld does not stick to copper. Where possible, use lap welds. Thicker metal, easier welds. Don't try to weld continous beads. Just make lots of tack welds, maybe an inch apart. Then make more. then make more, until your seam is welded shut. This keeps the metal from over heating. I don't like the extension cord idea, though I hear it all the time. Good luck. Zach |
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Posts in this topic
wayne1234 help from welding guys, having trouble with mig flux cored wire Apr 27 2009, 07:23 PM
Spoke I believe the flux cored wire is relatively heavy ... Apr 27 2009, 07:34 PM CliffBraun I'd try shorter welding cycles, maybe a lower ... Apr 27 2009, 07:39 PM wayne1234 This is how puzzled I was... I looked at the manua... Apr 27 2009, 08:00 PM
CliffBraun
This is how puzzled I was... I looked at the manu... Apr 27 2009, 08:09 PM charliew The only flux cored wire I ever used was stick wel... Apr 27 2009, 08:06 PM rdr
The only flux cored wire I ever used was stick we... Apr 27 2009, 08:13 PM dlo914 I did this with a flux core welder, i pretty much ... Apr 27 2009, 08:58 PM rjames
:agree:
It will make things MUCH easier for y... Apr 28 2009, 09:19 AM 9146986 Get the shielding gas kit for that welder, and use... Apr 28 2009, 11:51 AM charliew The jist is yes you can learn to "get by... Apr 28 2009, 12:45 PM |
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