3" SS Downpipe Fab
3" SS Downpipe Fab
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05-29-2019, 04:05 PM
#3
Honda-Tech Member
Re: 3" SS Downpipe Fab
Just a little constructive criticism.
The welds are too hot. Are you using a gas lens by chance? There are three causes, too high of amps, too slow of travel, and not enough gas coverage. The colors tell you what the temp of the weld was when it oxidized. General rule of thumb is 1A per 0.001" thickness, adjust accordingly to match what your speed is. Lower amps can leave you traveling slower, which can also increase the HAZ.
Second, the brown haze along the welds, tell me that you dipped the tungsten, either into the weld puddle or into the filler rod.
Keep at it, hood time is the only way to get better. Always think "Today's good welds will be my shitty welds tomorrow."
The welds are too hot. Are you using a gas lens by chance? There are three causes, too high of amps, too slow of travel, and not enough gas coverage. The colors tell you what the temp of the weld was when it oxidized. General rule of thumb is 1A per 0.001" thickness, adjust accordingly to match what your speed is. Lower amps can leave you traveling slower, which can also increase the HAZ.
Second, the brown haze along the welds, tell me that you dipped the tungsten, either into the weld puddle or into the filler rod.
Keep at it, hood time is the only way to get better. Always think "Today's good welds will be my shitty welds tomorrow."
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05-29-2019, 04:22 PM
#4
-Intl Steve Krew
Re: 3" SS Downpipe Fab
Too low of gas coverage, way too much amperage, no back purge. Did you even use 308 rod? So much carbide precipitation you might as well have used mild steel.
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05-30-2019, 05:55 AM
#5
Honda-Tech Member
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