Compare resistance welding and arc welding.

Compare resistance welding and arc welding. 
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1 Answer

Answer :

Sr. No
Resistance Welding
Arc Welding
1 It is plastic welding
It is fusion welding.
2 Arc is produced by heat due to resistance of flow of current by work and by application of pressure 
Arc is produced by heating with an electric arc, mostly without application arc, mostly without application of pressure and filler material
3 Filler metal is not used 
Filler metal may used 
4 High pressure welding can be achieved
Low welding speed
5 Supply is A. C. only
Supply may be A.C. or D.C.
6 Voltage required is low
Striking voltage is high 
7 Both similar and dissimilar metal can be welded easily.
Welding of siiilar and dissimilar metal is quite difficult
8 Less skilled operator can do the job.
More skilled operator is required to the job
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