In the above equation, Arc Current x Arc Voltage
is the electric energy being supplied to the arc in
one second (J/sec), and when this is divided by
the distance traveled in one second (travel speed in mm or inches per minute divided by 60), one
obtains the arc energy (Joules per mm or Joules per inch; a kJ is simply equal to 1000 J).
For example, if you use the SMAW process (E4918 electrode, 4 mm diameter) for depositing a weld
pass using the following parameters:
Current = 160 A; Voltage = 22 V; Travel Speed = 8 in/min (203 mm/min)