EXPERIMENTAL AND MICRO STRUCTURAL ANALYSIS OF WELDED JOINTS
Keywords:
Material welding,, Weld joint,, Microstructure AnalysisAbstract
Welded joints are widely found in almost all applications like construction structures, automotive, industrial roofs and many more applications. A welding joint is a point or edge where two or more pieces of metal or plastic are joined together. They are formed by welding two or more work pieces (metal or plastic) according to a particular geometry. The strengths of these joints are of great concern as in today’s world these joints find a very crucial place in growths of structures and machine parts and it is the strength of such joints and welding which decides the service life of such structures and thus prevent from loss whether be it human loss, economic loss or the any such losses. In this paper we have taken few special and most commonly joints which is used by the industry and dealt with their microscopic and macroscopic behaviour when subjected to certain general types of loading. In this work we have taken three welding joints and welded them by three processes and then we have obtained its microscopic structure with the help of a metallurgical microscope and then have tested it on UTM machine so as to obtain its strength. Then we have plotted the strengths on the graph so as to suggest the best welding process for a particular joint.
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