Answer :
Final answer:
The gas nozzle in MIG welding directs shielding gas to protect the weld from contaminants and ensure quality. It plays a critical role in producing clean and strong welds.
Explanation:
The function of the gas nozzle in MIG welding is to direct the shielding gas around the welding area. This gas shields the weld pool from contaminants in the air, ensuring a strong and clean weld.
The proper delivery of shielding gas through the gas nozzle is crucial for producing high-quality welds without imperfections.
Without the gas nozzle, the weld would be susceptible to defects due to exposure to the surrounding atmosphere.
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