This one is for all the computer nerds who believe that everyone else in the world is a moron. I present you with a technological riddle. Below, you will find a description of the equipment involved, the task being performed, and the problems that are occuring. Your mission, should you choose to accept, is to tell me exactly what is causing the problems and what is the solution.

Feel free to use google until your fingers fall off and your eyes explode. The only rule is that you cannot ask for help from someone who is experienced in this area. Of course, there's no way I can enforce this rule, but even if you violate it, you will know my point has been made.

It shouldn't be too difficult for you. After all, I know the answer, and according to you I'm a moron.

Experienced welders: please do not post solutions!!

Good luck.

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Your equipment:

Millermatic 350 GMAW welder
.045 dual shield wire
75% argon / 25% carbon dioxide cylinder


Your task:

T-joint on 1/2 inch mild steel in the vertical position


Your problems:

Porosity, undercut, and a sagging bead.
At the end of the bead, hot metal bubbles out just before it cools.
Also, wire has stopped coming out of the contact tip when you squeeze the trigger, but your spool is not empty.






What is causing these problems, and what should you do to fix them?
CityBoyGoneCountry Reviewed by CityBoyGoneCountry on . A challenge for the techno-geeks This one is for all the computer nerds who believe that everyone else in the world is a moron. I present you with a technological riddle. Below, you will find a description of the equipment involved, the task being performed, and the problems that are occuring. Your mission, should you choose to accept, is to tell me exactly what is causing the problems and what is the solution. Feel free to use google until your fingers fall off and your eyes explode. The only rule is that you cannot ask Rating: 5