Manufacturing And Production Technology
What type of fusion welding process is used for welding sheet metals of all engineering metals (except Cu, Ag) in automobile and air craft industries, pipe and tubing production?

Resistance welding
Submerged arc Welding
Thermit welding
Electroslag welding

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Manufacturing And Production Technology
The snag grinding is done

Any one of the above
To remove considerable amount of metal without regard to accuracy of the finished surface
To grind exterior cylindrical surfaces
To produce good surface finish and high degree of accuracy

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