Thursday, May 17, 2012

Welding Takes Turn For The Worst

Someone asked me how I know what to do when the weld takes a turn for the worst? It was after years of teaching experience and you learn to train your eyes and thought about what the problem looks like the weld area. That's the benefit of this course. I can relay to you the benefits you can receive from my years of painful mistakes and the mistakes I have learned not only from my own mistakes but the mistakes of those around me. One video was recently published of the series shows the raw trap I opened the gap welding and metal bevel running the risk of falls on creating what is technically called excessive penetration.

Due to penetration excess of pushing too much metal to the interior surface on the inside of the pipe. This is usually caused from staying too long in one place while welding. The combination is too big a gap and high heat can also attribute to excessive penetration. It is almost a guarantee that young welder at some point will encounter this problem. The way around this is to try our best to fit evenly and bevels pipe inner surface of the pipe.

An even gap all the way around the pipe to make life a lot easier. The problem that I face in the video that you see in the series trap raw surface of the pipe is the hypotenuse. The beveling hand is almost always inferior to the plant or machinery bevel. When two factory bevels that consistently matched the gap and make the track fit is more uniform weld. Since this heat range will not need to be adjusted as the uneven hand bevel.

What happened to me on the raw trap is that the gap is not consistent leading to my keyhole opening up to high heat and a lot of my enemies. The lock and open the end of the pipe was on fire before I could save metal. When this happens if you do not immediately stop and make some kind of adjustment is more than likely you will make some of these things if they might not all. 
  1. Burning bevel pipe and open a gap
     
  2. Leave the rest of the metal in the weld line as you live in a big gap too long trying to fill the crater
     
  3. Lowering the lock you have to gorge created.
     
  4. Withdraw the rod while still welding because the heat is too much to handle right now and by doing that youbcan not leave through the weld and weaken the inner pipe surface.
Either way it goes the thing to do is stop welding. You can turn down the heat slightly to bring the amp is usually 5 to 10 amps depending on your skills and problems. Maybe more, maybe less.

Stop welding pipes and let cool. Do not push the rod into the bevel as much butter and began to jump around more bevel causes less penetration.

The only way to be sure about what you do on the inside of the pipe is to adjust a little, a little welding, then look into the pipe with a flashlight to see what you are doing. Hopefully if the pipe is not completely closed you may be able to look through to see the weld bevel interior. You also may be able to see the weld interior with mirror and light from the outside if the pipe is cut to less than the length or closed.

When a gap opens grind as little as possible. The last thing you want to do is take more than a bevel now. If the pipe is lit in red where you can see it after withdrawing from the key hole and key hole appears to grow then let it cool and resist heat.

I hope this all makes sense. If not you know I'll try to clarify or come from a different angle.

No comments:

Post a Comment