INTRODUCTION
Welded joints are more widely used in fabrication work.
In these days the welded joints are replacing bolted or riveted joints.
The welded joints heave greater efficiency as compared to the riveted joints.
These joints are used to repair different. structures or to unite two parts.
A welded joint is permanent joint.
It is obtained by the fusion of edges of components to be joined with or without the use of filler meter.
The heat required for welding is obtained by fusion of acetylene gas welding and by an electric arc as in arc welding.
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