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fast or slow mig?

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发表于 2021-9-1 00:48:07 | 显示全部楼层 |阅读模式
what's the difference between running low volatge low wire  and high voltage fast wire speed?  I'm welding 1/8 4x2 square steel, would it result in faster welding?
Reply:It's not a speed thing, its a penetration thing. You need the higher voltage to get your penetration based on the thickness of the material you are welding."Common sense is not very common"http://www.tahoekeyshome.com
Reply:Running too low voltage and wire speed results in cold welds (insufficient penetration, poor wet-in or cold lap at toes, convex bead shape).   Running too high voltage and wire speed results in welds too hot (overpenetration or burn through, undercut at toes, concave bead shape).   You can make up for too cold or too hot settings to some degree by changing the travel speed, changing the torch angle, weaving.   If you're way far off on the settings, no amount of change in torch movement will fix it.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:The heat (volts and wire speed) needs to be right for what you are welding.David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:Originally Posted by David RThe heat (volts and wire speed) needs to be right for what you are welding.David
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