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-   -   3" SS Downpipe Fab (https://honda-tech.com/forums/welding-fabrication-53/3-ss-downpipe-fab-3336012/)

BuiltnotboughT2 04-14-2019 11:37 AM

3" SS Downpipe Fab
 

exgr 04-30-2019 12:17 PM

Re: 3" SS Downpipe Fab
 
Good job. Where are you located? What language is the music? I was gonna say Russian but I'm probably wrong. :)

Gustav129 05-29-2019 04:05 PM

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."

Caoboy 05-29-2019 04:22 PM

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.

LightningTeg 05-30-2019 05:55 AM

Re: 3" SS Downpipe Fab
 

Originally Posted by Caoboy (Post 51940643)
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.

Mild wouldn't have precipitated too.

Caoboy 05-30-2019 06:03 AM

Re: 3" SS Downpipe Fab
 
Yeah, but at least it would have already been carbon steel ;)


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