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The tips of the electrodes, for the spot welding are made of:
  • a)
    Carbon
  • b)
    Copper alloy or pure copper
  • c)
    Mica
  • d)
    Porcelain
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The tips of the electrodes, for the spot welding are made of:a)Carbonb...
Spot welding means the joining of two metal sheets and fusing them together between electrode tips at suitably spaced intervals by means of heavy electric current passed through the electrodes.
The electrodes are made up of copper or copper alloy and are water cooled.
The welding current varies widely depending upon the thickness and composition of plates. It varies from 1000 to 10000 A, and voltage between the electrodes is usually less than 2 V.
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The tips of the electrodes, for the spot welding are made of:a)Carbonb)Copper alloy or pure copperc)Micad)PorcelainCorrect answer is option 'B'. Can you explain this answer?
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