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Thursday, January 21, 2010

Learn About How To Arc Weld Here

By Peter Smith

FREE how to arc weld guide for you to use. There comes a time in a man's life when he is going to need to learn how to arc weld. You might need to build yourself a nice big box trailer, or fix up the old farm plough. Yes, using a stick welder can be a bit of a pain in the bum at first especially if you have never done this before.

Like with anything, safety comes first and that is where we will start. Protective clothing is a must when welding. Not only do you have to be protected from the hot sparks but also the damaging UV rays that are given off from the welding process. Welded objects also become very hot and it is easily forgotten where you just welded, and if you pick up what you just welded you can burn your hands badly. This is why you need to wear some thick leather welding gloves, a long sleeved shirt and long pants.

When you are welding there is often spatter and hot sparks flying around all over the place. I have learned the hard way by not wearing fully enclosed footwear. I have burnt myself many times from just using sandals and flip-flops. Please use fully enclosed leather work boots to protect the tops of your feet from the hot welding spatter. Welding and grinding go hand in hand so you are also going to need some protective eyewear and some earplugs. Get a full face shield mask because just using safety glasses won't protect the rest of your face.

To get the best possible start I highly recommend going out and getting an auto darkening welding helmet because it will make learning how to arc weld so much easier. If you already have the standard type flip up helmet this will be more than adequate, these are usually picked up really cheap as well.

You must and I can't stress this enough, clean up the material you are going to weld. It needs to be shiny clean to get the best possible chance of doing a successful weld. Quite often people will weld on top of rust, mud, oil and paint. This is a big no no, as it will cause weld contamination and porosity, but ultimately it will make welding for you so much harder.

The welding electrode selection to use is a 6013 rod. These are very common and are a general purpose (GP) rod that can be used in any position. All welding electrode will (or should) have a guide on the back of the packet showing you what diameter rod to use at what amperage setting of your machine.

So now you can turn the machine on and set it up, adjusting the amperage to that which is stated on the back of the welding electrode packet and you'll be right to go. Ideally if you have a few spare G clamps lying around you can clamp down your piece of metal onto your workbench so that it doesn't move around when you try to start the arc. Also attach the ground clamp from the welder to the metal.

I recommend you use the scratch technique to get the arc started. This is just like striking a match except you are using a dirty great big long welding electrode. The idea is to drag or scratch the plate until the arc starts. Keep doing this over and over again until you can start it all the time. Once you master this you should be able to start the arc and hold it burning in the one spot.

The next step once you can make and hold that welding arc is to make a line of weld bead. This is what is called a stringer bead. Once the arc is going, keep the welding rod leaning over and start to move away from the puddle of weld that was created by the initial starting arc. Remember to lean the rod in the direction of travel. As a rough guide, keep the tip of the burning electrode about one to one and a half times the diameter of the rod off the metal you are welding.

Remember practise makes perfect. This was an introduction to arc welding on how to arc weld. - 21393

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