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Consider the following statements: MIG welding process uses: 1. Consumable electrode 2. Non-consumable electrode 3. D.C. power supply 4. A.C. power supply Which of the following option is correct?

Consider the following statements: MIG welding process uses: 1. Consumable electrode 2. Non-consumable electrode 3. D.C. power supply 4. A.C. power supply Which of the following option is correct? Correct Answer 1 and 3 are correct

Explanation:

Gas metal arc welding (GMAW) or Metal inert gas arc welding (MIG)

  • In this process, the arc is formed between a continuous, automatically fed, metallic consumable electrode and welding job in an atmosphere of inert gas, and hence this is called metal inert gas arc welding (MIG) process.
  • The shielding gases for MIG welding are mixtures of argon, oxygen, and CO2, and special gas mixtures may contain helium. 
  • Direct current power supply is used to weld the workpiece.
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