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Unread 08-17-2013, 07:56 PM   #31
andrewmacc
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Quote:
Originally Posted by danielbuck View Post
I did try it both ways, I didn't notice a whole lot of difference, but I did pull instead of push most of the time. With mig I usually push.
"If it's got slag.. drag.."

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Unread 08-18-2013, 10:34 AM   #32
freeskier93
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Quote:
Originally Posted by squire_wj
I know this has prob been said but being a welder by trade when people call stick or smaw welding "arc" welding that is my pet pev. Almost every type of welding is arc welding. Unless we are talking about braze welding or explostion welding or plastic welding.
There's also oxy fuel welding, electric resistance welding (spot welding), laser beam welding, electron beam welding, thermite welding, cold welding, and soldering.
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Unread 08-18-2013, 10:54 AM   #33
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There are all kinds of welding, I just wasn't going to start listing them all
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Unread 08-18-2013, 11:52 AM   #34
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Originally Posted by freeskier93 View Post
There's also oxy fuel welding, electric resistance welding (spot welding), laser beam welding, electron beam welding, thermite welding, cold welding, and soldering.
Well, ERW is not just spot welding, almost all tubing and pipe is made by ERW at least initially; amongst other things.
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Unread 08-18-2013, 01:54 PM   #35
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Originally Posted by danielbuck View Post
I did try it both ways, I didn't notice a whole lot of difference, but I did pull instead of push most of the time. With mig I usually push.
That is because with MIG welding there is no slag to create an inclusion in the weldment.

like others have said, 99% of the time if theirs slag you drag.
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Unread 08-18-2013, 02:10 PM   #36
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The shop I work at we run 1/16 dual shielding flux core 100% CO2 and everyone of us push, its in the welding procedure. Gives it a much flatter profile and helps eliminates under cut.
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Unread 08-18-2013, 02:25 PM   #37
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Originally Posted by squire_wj View Post
The shop I work at we run 1/16 dual shielding flux core 100% CO2 and everyone of us push, its in the welding procedure. Gives it a much flatter profile and helps eliminates under cut.
Dual shield you drag no matter what wire size or or shielding gas mixture your using. If your not getting a nice flat weld profile when dragging, turn your wire speed down a bit, or crank up the voltage a little. I run dual shield all day, everyday (mostly .045) with a 82/18 or 75/25 gas mixture. No need for manipulation either, even when welding vert. up.
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Unread 08-18-2013, 03:50 PM   #38
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It's the only way to avoid undercut when running 350 ipm and 28 volts. And about 90% of are welds are UT and its very rare one fails. It's in the wps to push. Also welding with 100% CO2 is a different monster then using mixed gas
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Unread 08-18-2013, 05:32 PM   #39
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We switched over to mix gas because were running ESAB wire... it calls for Argon/CO2 mixture. Havent had any problems with undercut, could just be the fact that your running 1/16" wire... that stuff burns HOT.
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Unread 08-18-2013, 06:13 PM   #40
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That's exactly why and the co2 makes it really dig. But the company wants 100+ feet of weld a day so that's why we use 1/16th.
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Unread 08-24-2013, 07:12 PM   #41
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Wait... can we go back to the EXPLOSION welding? This, I gotta see....
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Unread 08-24-2013, 07:16 PM   #42
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Look it up on YouTube, its pretty sweet.
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Unread 08-24-2013, 07:18 PM   #43
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this is the video we watched when I was on school
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