Which part of the arc welding element/equipment is consumable? 

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SSC JE Mechanical 05 Jun 2024 Shift 2 Official Paper - 1
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  1. Electrode
  2. Electrode holder
  3. AC/DC transformer
  4. Electrical cables

Answer (Detailed Solution Below)

Option 1 : Electrode
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Detailed Solution

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Explanation:

Arc Welding Consumables and Equipment

  • Arc welding is a welding process that uses an electric arc to join metals.
  • The heat generated by the electric arc melts the workpieces and the filler material (if used), allowing them to cool and fuse together.

Working Principle:

  • In arc welding, an electric arc is formed between an electrode and the workpiece. The electrode can either be consumable or non-consumable. Consumable electrodes melt during the welding process and become part of the weld, while non-consumable electrodes do not melt and serve only to conduct the electric arc.
  • The electrode is the consumable part of the arc welding setup.
  • In arc welding processes like Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), and Flux-Cored Arc Welding (FCAW), the electrode is made of a material that melts and becomes part of the weld joint.
  • This consumable electrode serves dual purposes: it conducts the electric arc to generate the heat required for welding, and it supplies filler material to the weld pool. The electrode is gradually consumed during the welding process, necessitating its replacement or replenishment.

The correct option is: Option 1: Electrode

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