Pdf lecture 2 classification of welding processes i. Just like in mig welding, a wire that serves as the electrode and the. The welding process involves applying heat and pressure to the materials being joined, in addition to a filler material, in order to create a weld pool which cools to form a strong joint. Welding revo technologies and enterprisesan iso 9001. The most popular processes are shielded metal arc welding smaw, gas metal.
English types of welding classification of welding. The content has been chosen so that it can be used as a textbook for european welding courses in accordance with guidelines from the european welding federation. The most common types of welding are oxyfuel gas welding ofw, arc welding aw, and resistance welding rw. Therefore, in this article, i will be explaining all types of welding process in detailed with the help of tree diagram. Welding with or without filler material source of energy for welding arc. The purpose of the welding handbook for maritime welders is to provide guidance in modern welding and related processes and to provide the welder with a source of practical information on the right solution to specific onboard welding problems. For further information on the categorization of the welding, joining, cutting, and allied processes, see appendix a. They use various types or combinations of energy to provide the required power. This is often done by melting the workpieces and adding a filler material to form a pool of molten material the weld pool that cools to become a strong. Plastic welding in plastic welding or pressure welding, the pieces of metal to be joined are heated to plastic state and then forced together by external pressure. Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. Each of the above type of welding can be further classified depending on other micro level characteristics.
Pdf lecture 2 classification of welding processes i social mufti. We can divide the welding processes into two major groups. This lecture will give you an in depth knowledge of different welding processes and about their classification as per the industrial norms. Welding processes, 4 volume 2 of the american welding societys welding handbook, 8th edition, presents in1.
Production of this book to welding was prompted originally by a wish for an uptodate reference on applications in the field. At the time of the preparation of this chapter, the referenced codes and other standards were valid. Welding processes can be classified on the basis of following techological criteria. Types of welding processfusion,nonfusion and pressure. They cover smaw or stick welding, gtaw or tig welding, and gmaw or mig welding. Fusion welding in fusion welding or non pressure welding, the material at the joint is heated to molten state and allowed to solidify. Welding is the process of coalescing materials such as metals or thermoplastics in order to seamlessly join them. Download types of welding process pdf at the end of the article. Experience gained from user contact and welding training of crewmembers showed that. There are many different types of welding processes and in general they can be. In fact, mig welders can often perform double duty as a fcaw welder as well. Types of welding revo technologies and enterprises. Pdf a welding joint is a point or edge where two or more pieces of metal or plastic are joined together. Bob and sparky introduce us to the world of welding.
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