Explain with the diagram butt welding. State its applications.

Explain with the diagram butt welding. State its applications. 
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Answer :

Diagram butt welding:- 

image

Explanation: Transformer used for welding is designed for low voltage and high current secondary. Transformer is oil cooled The job is clamped as shown in fig. two parts which are to be welded are brought together Sufficiently heavy current is passed through joints by welding transformer, which creates necessary heat at joints due to I2R When welding temperature is reached supply is cut down. And external pressure is applied simultaneously across the job to complete weld 


Application Butt Welding: 1) For welding rod, wire, pipe etc 2) For joining thick metal plates or bars at end

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