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LABOR & OVERHEAD
Welder hourly rate & Overhead ($/hr.)
Arc travel speed in/min (cm/min) x 60
min/hr x operating duty cycle
12 in/ft (100 cm/m)
The operating duty cycle is the percentage
of time, usually of one hour, that welding is actually done. The
typical operating duty cycle for the
manual mig process is 60%. Because of chipping, slag cleaning and
changing electrodes, shielded metal
arc is typically 30%. Of course, automatic mig has a much higher duty
cycle.
