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Make the changes in the welding machine's voltage and amperage settings are required to change between short-circuiting and axial spray or between axial spray and buried arc transfer methods.
What is Spray Arc Transfer Welding?
Spray arc welding is one of the processes used to transfer metal from the electrode or wire to the weld. Minute molten droplets of metal travel via the arc and on to the base metal or the joint being worked on. Spray Transfer is ideal for use on thicker metals for butt or fillet joints.
What is the Difference Between Short Circuit Transfer and Spray Arc Transfer?
A spray transfer is usually smaller than the diameter of the wire and uses relatively high voltage and wire feed speeds or amperage.
Unlike the short circuit transfer, once the arc is established, the arc is "on" at all times.
What is Buried-Arc Transfer?
The arc in carbon dioxide is very forceful. Because of this, the wire tip can be driven below the surface of the molten weld pool. With the shorter arcs, the drop size is small, and any spatter produced as the result of short circuits is trapped in the cavity produced by the arc—hence the name buried-arc transfer.
Therefore, we can conclude that the correct option is B.
Your question is incomplete, but most probably your full question was:
What changes to the welding machine are required to change between short-circuiting and axial spray or between axial spray and buried arc transfer methods?
A. change the shielding gas from Ar to 100% CO2 or
He to Ar+02
B. make the changes in the welding machine's voltage and amperage settings
C. increase the voltage
D. increase the amperage
Learn more about Short-Circuiting on:
brainly.com/question/25018411
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