What is welding? Welding is the most common way of joining metal parts together. Do you know that there are many ways of welding? What is the difference between the types? In this paper I will discuss the differences between Mig, Tig, Arc, and Oxy Acetylene Welding. Mig welding also referred to as wire feed welding, utilizes a consumable arc. The process generates heat from an electric arc maintained between a consumable wire feed electrode and the part being welded. This produces spatter making it difficult for the operator to see the weld and causing damage to nearby surfaces and objects from the hot particles thrown off. Mig welding has higher welding speeds which has the chance of producing porosity is higher. A Mig weld can produce an arc into the puddle, allowing it to create a nice looking weld while the base metal underneath is not being properly melted. The Tig welding process generates heat from an electric arc maintained between a non consumable tungsten electrode and the part being welded. Tig welding may be used without the addition of a filler metal or a separ......

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