Characteristics of Underwater Swirling Plasma Arc Cut Quality
The present work experimentally investigates the cut quality for underwater dual swirling plasma arc process at different operating gases. With a decrease in the oxygen content of the cutting operating gas, kerf shape and cut surface smoothness go well, but the adherent dross and cut hardness increase while cutting heat affected zone becomes wide. On the low-speed side of the cut, there are smaller bevel angle, more dross, and greater straightness and hardness. Compared with the dry plasma cutting, the underwater plasma process yields a cut of better shape but higher hardness.
Zhengyi Jiang and Chunliang Zhang
J. Y. Wang et al., "Characteristics of Underwater Swirling Plasma Arc Cut Quality", Advanced Materials Research, Vols. 97-101, pp. 3974-3977, 2010