Question

What are the four basic modes of metal transfer?

1) Spray transfer, Globular transfer, Short-circuiting transfer, Pulsed-spray transfer
2) Spray transfer, Globular transfer, Short-circuiting transfer, Dip transfer
3) Spray transfer, Globular transfer, Short-circuiting transfer, Flux-cored transfer
4) Spray transfer, Globular transfer, Short-circuiting transfer, Plasma transfer

Answer 1

The four basic modes of metal transfer in welding are spray transfer, globular transfer, short-circuiting transfer, and pulsed-spray transfer (option 1) .

Step-by-step explanation:

The four basic modes of metal transfer in welding are as follows:

1. Spray transfer: A mode where small droplets of molten metal are sprayed across the arc.
   
2. Globular transfer: Larger droplets of metal are transferred across the arc.
   
3. Short-circuiting transfer: The wire electrode makes contact with the weld pool and shorts the arc; as the wire melts, a new arc is formed and the metal is transferred.
   
4. Pulsed-spray transfer: A variation of spray transfer where pulses of current are used to detach small droplets of molten metal, allowing for controlled heat input and fine-tuned bead appearance.

Thus, the correct answer to the question of what the four basic modes of metal transfer are would be option 1: Spray transfer, Globular transfer, Short-circuiting transfer, Pulsed-spray transfer.