Question:
Tip of the electrode used in spot welding are made of
Tip of the electrode used in spot welding are made of
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Welding electrodes need to be great conductors. Copper is the industry standard for delivering the power without overheating.
Updated On: Jul 4, 2026
- Mild steel
- Copper
- Soft solder
- Aluminium
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The Correct Option is B
Solution and Explanation
Step 1: Concept Spot welding is a type of resistance welding where heat is generated by the electrical resistance of the workpieces.
Step 2: Meaning The electrodes must deliver high current and pressure without melting themselves or sticking to the workpiece.
Step 3: Analysis Copper and its alloys are chosen because they possess extremely high electrical and thermal conductivity. This ensures the heat is concentrated in the workpiece rather than the electrode tip.
Step 4: Conclusion Therefore, electrode tips for spot welding are made of Copper or Copper alloys. Final Answer: (B)
Step 2: Meaning The electrodes must deliver high current and pressure without melting themselves or sticking to the workpiece.
Step 3: Analysis Copper and its alloys are chosen because they possess extremely high electrical and thermal conductivity. This ensures the heat is concentrated in the workpiece rather than the electrode tip.
Step 4: Conclusion Therefore, electrode tips for spot welding are made of Copper or Copper alloys. Final Answer: (B)
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