Question

Which type of mode of transfer uses constant potential power sources with slope control?

a) Globular transfer.
b) Spray transfer.
c) Pulsed current transfer.
d) Short circuit transfer.
e) Axial spray transfer.

Answer 1

Pulsed current transfer utilizes constant potential power sources with slope control in welding processes for superior quality control.

Step-by-step explanation:

The mode of transfer that uses constant potential power sources with slope control is pulsed current transfer. This mode is often used in welding processes such as Gas Metal Arc Welding (GMAW). Pulsed current transfer allows for precise control of the welding arc and heat input, which can produce high-quality welds with less distortion and spatter. Unlike other transfer modes, pulsed current uses a power source capable of rapidly switching between a high peak current and a low background current, providing better control over the metal transfer from the electrode to the weld pool.