Tomsic, M.J.; Jackson, C.E. Energy distribution in keyhole mode plasma arc welds. Weld. J. 1974, 3, 109–116. [Google Scholar] Nguyen, A.V.; Tashiro, S.; Bui, H.V.; Tanaka, M. Influence of plasma gas on the behavior of convention flow on weld pool surface. Q. J. Jpn. ...