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Proper gas flow for small, quick, welds of 304 stainless

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发表于 2021-9-1 00:30:02 | 显示全部楼层 |阅读模式
HelloI am a very novice welder (no formal training, just learning as I go). I am welding 1/8" 304 stainless steel rods together using a TIG welder. My shielding gas is an argon/co2 mix. The welds are very quick, typically only a second or two to get the pieces to melt together (no filler is being used). What is a good flow rate for the shielding gas?Here is a picture of what I'm working onAny help would be appreciated - thank you!charlie
Reply:Charlie,First off, get rid of that Argon/CO2 mix.  NOT FOR TIG.  Use straight argon.Flow rate of 15-20 CFH should be more than enough.  I suspect you're using a very small cup, so you probably can get by with a little less.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
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