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In a metal arc welding process, metal transfer across the arc may take place by a method of material transfer where the metal transfers across the arc is in larger drops. This is at the rate of 100 drops/sec or less, what is this known as
Answer & Solution
Correct Answer:
Option
A
The correct option is "Globular transfer".
In the metal arc welding process, globular transfer refers to the mode of metal transfer where molten metal crosses the arc in the form of comparatively large drops.
The frequency of transfer is relatively low, usually 100 drops per second or less. These large drops are often bigger than the electrode diameter and fall across the arc due to gravity.
Globular transfer is generally associated with high welding currents and is less stable compared to spray transfer, producing more spatter and less smooth welds.
Why not the others?
"Spray transfer" involves a fine spray of very small droplets at a much higher rate than 100 drops/sec, resulting in smooth welds with minimal spatter.
"GMAW practice" (Gas Metal Arc Welding) is the overall welding process, not a specific mode of metal transfer.
"Dip transfer" (short-circuiting transfer) occurs when the electrode tip touches the molten pool, and metal transfer happens in small droplets during short-circuits, not in large drops.
Therefore, the correct answer is Globular transfer.
In the metal arc welding process, globular transfer refers to the mode of metal transfer where molten metal crosses the arc in the form of comparatively large drops.
The frequency of transfer is relatively low, usually 100 drops per second or less. These large drops are often bigger than the electrode diameter and fall across the arc due to gravity.
Globular transfer is generally associated with high welding currents and is less stable compared to spray transfer, producing more spatter and less smooth welds.
Why not the others?
"Spray transfer" involves a fine spray of very small droplets at a much higher rate than 100 drops/sec, resulting in smooth welds with minimal spatter.
"GMAW practice" (Gas Metal Arc Welding) is the overall welding process, not a specific mode of metal transfer.
"Dip transfer" (short-circuiting transfer) occurs when the electrode tip touches the molten pool, and metal transfer happens in small droplets during short-circuits, not in large drops.
Therefore, the correct answer is Globular transfer.
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