Weld critique please

[MinnesotaDaveChalmers]

You're right, that was a typo. Should have been 300ipm, not 400. Per the link, the max stick out would be 5/8", so I am a bit long. Both CO2 and Argon/CO2 mix are approved gasses.

True, mixed gases are shown in the list, but not 90/10.
300ipm for 105 amps - thin wire? .024"?

 

[square1]

Your mother was a hamster and your father smelt of elderberries.
Oh...wait...you said critique the weld, not welder...never mind

 

[Cord]

Well, I fiddled with the setup a bit more and got it to lay a decent bead. Still don't like the porosity at the puddle.

In the end, I guess it doesn't matter. Shortly after that picture was taken something went awry with the welder. During a weld the amperage would drop off until the arc collapsed. Got on the phone with the mfr and they're going to warranty the machine. Sigh.

 

[PJSprog]

Your mother was a hamster and your father smelt of elderberries.
Oh...wait...you said critique the weld, not welder...never mind

You can never go wrong with a Python quote. Ever.

 

[LD1]

Did you ever say what make / model the welder is? I assume new since they are going to warranty it

 

[yomax4]

Porosity is nearly always a gas issue. Gun angle could be a slim part of it but check to see that you are really getting at least 15cfh at the weld. You may have a bad o-ring or a loose gun.

 

[muddstopper]

I once had a similar problem with my mig. I had installed a new liner and everything was going fine for a while. Then the weld just got ugly. porosity, splatter, wire burning back to the nozzle. Turns out I had left the bolt lose where the cable plugs into the wire feeder and the cable has pushed part way out of its connection. Gas was leaking out at the connection instead of flowing thru to the nozzle. Took me a while to figure out the problem but once I push the cable back in place and tighten the thumb screw it ran a lot better.

 

[GLyford]

I have also heard of people getting a bad tank of mix now and then.

 

[TMGT]

I thought I had a bad tank of argon on my tig for awhile, drove me nuts, changed the tank and still had problems. Was replacing the regulator and found a barely lose connection for the adaptor for hose off the regulator, was pulling atmosphere into the shielding gas. I'd go back and check all connections, also can be a bad regulator.