Welding,Terminology,you,are,in technology Welding Terminology
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If you are interesting in welding there are many differentterms that you will want to familiarize yourself with in order to readmagazines or books on the topic. Here is a list of common terms that areimportant to know: ACETYLENE -- this is a gas that you will be working with todo welding. It is a very flammable gas so you have to be careful with it. Thisgas is made up of carbon and hydrogen and it is used in the oxyacetylene typeof welding process. AIR-ACETYLENE -- this is a flare that you can produce usinglow temperature. It is created when you burn acetylene with air and not oxygen. AIR-CARBON ARC CUTTING (CAC-A) -- this is a way of arccutting where you melt metals through the heat of a carbon arc. ALLOY -- this is a mix that has metallic properties becauseit has at least one element that is metal, but it can have several other thingsin the mix as long as one is metal. ALTERNATING CURRENT -- a current that goes backward andforward at regular intervals (see DC Current). BACK FIRE -- this is the popping sound that you hear whenyou turn on the acetylene torch when you connect it with fire. It is createdbecause the flame turns back into the tip for a moment and then comes back outof the torch as a flame. BACKHAND WELDING -- this is a special welding techniquewhere you point the flame at the weld that is already completed. BACKING STRIP -- this is a strip of material that you willuse when you need to keep metal that is melted at the bottom of the weld. Youmay also use this strip to add strength to the thermal load of a joint so youcan stop the base of the metal from warping too much. BASE METAL -- this is what you call the metal that you aregoing to weld or that you are going to cut. If this is an alloy, it will be themetal that you have in the highest amount. BRAZING -- this is actually several welding processes. Youwill use this when you have a groove, fillet, lap or flange joint that you needto bond. This will require a nonferrous filler metal that has a melting pointhigher than 800 degrees F (427 degrees C) but less then your base metals. Then, the filler metal will be distributedthroughout the joint using capillary attraction. DIRECT CURRENT (DC) -- a current that only flows in onedirection -- forward.- Flows in one direction and does not reverse its directionof flow. DEFECT -- there can be defects in your weld after you createit. The main defects you can find are things like cracks, porosity, placeswhere the metal has been undercut, or where you have a slag inclusion. EDGE JOINT -- this is where you set two platesand put them together at a 90 degree angle with their outer edges.
Welding,Terminology,you,are,in