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Tech & Fab
Lincoln welder issue
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<blockquote data-quote="patooyee" data-source="post: 442056" data-attributes="member: 483"><p>I've never used flux, always gas. And I do have to turn off the shop fans or redirect them. Same goes for TIG or any inert gas welding I would imagine. I've never needed a gap to weld effectively with gas. Having clean metal is always needed. I don't know why flux would change that. Contaminants are contaminants. I've found the cleaner my surface is the better the weld is. Spend zero time prepping, get **** for welds. I am surprised at what I can get away with on MIG that wouldn't fly with TIG though. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Looking at the specs of this welder, it is 30% at 130 amps with a max output of 180amps. I rarely if ever use setting E which is probably the 180. That means D is probably somewhere around 130 - 150 amps, right around the duty cycle. Given that I welded an hour the other day and it stopped 3 times, that means I welded about 20 minutes out of 60 minutes, or about 33%, right at its listed duty cycle. I'm thinking in the past when I was able to weld for so long I may have been on setting C which should be around 100 - 110 amps. Hard to say for sure since I haven't had a chassis to weld completely in a long time. I can weld tube about as good on C as I can D, just have tended to err on the hot side recently. I know I didn't always err hot though.</p><p></p><p>Anyway, this is all to say that I'm starting to think that Lincoln was right. The machine is operating properly, I may have been worrying about nothing.</p></blockquote><p></p>
[QUOTE="patooyee, post: 442056, member: 483"] I've never used flux, always gas. And I do have to turn off the shop fans or redirect them. Same goes for TIG or any inert gas welding I would imagine. I've never needed a gap to weld effectively with gas. Having clean metal is always needed. I don't know why flux would change that. Contaminants are contaminants. I've found the cleaner my surface is the better the weld is. Spend zero time prepping, get **** for welds. I am surprised at what I can get away with on MIG that wouldn't fly with TIG though. :) Looking at the specs of this welder, it is 30% at 130 amps with a max output of 180amps. I rarely if ever use setting E which is probably the 180. That means D is probably somewhere around 130 - 150 amps, right around the duty cycle. Given that I welded an hour the other day and it stopped 3 times, that means I welded about 20 minutes out of 60 minutes, or about 33%, right at its listed duty cycle. I'm thinking in the past when I was able to weld for so long I may have been on setting C which should be around 100 - 110 amps. Hard to say for sure since I haven't had a chassis to weld completely in a long time. I can weld tube about as good on C as I can D, just have tended to err on the hot side recently. I know I didn't always err hot though. Anyway, this is all to say that I'm starting to think that Lincoln was right. The machine is operating properly, I may have been worrying about nothing. [/QUOTE]
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