plasma arc welding forces - help needed

[COLOR=#1C1C1C][FONT=&quot]Hey people,[/FONT][/COLOR]
[COLOR=#1C1C1C][FONT=&quot]I am currently in the process of writing my master's thesis concerning additive manufacturing by making use of a wire-based plasma welding process. I am having trouble finding proper literature on the forces acting in the arc, on the wire, and on the weld pool. [/FONT][/COLOR]
[COLOR=#1C1C1C][FONT=&quot]I would be very thankful for every literature tip or comments, THX.[/FONT][/COLOR]

In general, I would suggest that the forces at the point of automated fusing the metal is identical to hand plasma welding.