MIG Welding Processes| Exam 1- Latest Update 2025| Questions and Answers

MIG Welding Processes| Exam 1- Latest
Update 2025| Questions and Answers

A welding process that uses a continuous solid wire electrode and a shielding gas to join metals.

MIG Welding



The gas commonly used in MIG welding to protect the weld pool from contamination by

atmospheric gases like oxygen and nitrogen.

Argon



The type of electrode used in MIG welding that is consumable and continuously fed into the

weld joint.

Filler Wire



The process of feeding the filler wire into the welding joint at a constant speed to maintain a

consistent weld.

Wire Feed Speed



The process of shielding the weld area with gas to prevent contamination and ensure the weld's

quality.

Shielding Gas



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, A common defect in MIG welding caused by insufficient heat, which leads to poor fusion

between the base metal and filler material.

Cold Lap



The type of MIG welding used for welding non-ferrous metals like aluminum and magnesium.

Pulsed MIG



The current used in MIG welding, which is a combination of both direct current and alternating

current.

Direct Current



A type of MIG welding used primarily in automotive applications, which involves a higher

voltage and is used for thinner materials.

Short Circuit Transfer



The process of adjusting the welding machine to the appropriate voltage and wire feed speed for

optimal weld quality.

Welding Parameters



The type of MIG welding used to weld thick materials by using a spray transfer mode for higher

heat input and faster deposition rates.

Spray Transfer MIG



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