The original Arcon design is the ONLY Constant Power machine on the market.
This is most evident when TIG welding, but this feature is present in all modes. To put this simply, as the arc length fluctuates, the current adjusts up or down to provide Constant Power, or HEAT, to the puddle. This allows the operator to weld on very thin material without burn through, and to weld smoothly even with a shaky hand.
In response to customer requests, Arcon released our newest model welder
the Workhorse 300SMT in the spring of 2016, to meet the specific requirements
for Constant Current (CC) & Constant Voltage (CV) welding
The new, Presettable Workhorse Model 300-SMT provides four process modes:
CC Stick (SMAW)
CC TIG (GTAW)
CV MIG (GMAW)
CV Flux Core (FCAW)
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The type of welding process you will be using, and its associated level of automation, is the primary determining factor in which type of welding output is most stable and thus preferred.
The Shielded Metal Arc Welding (SMAW) process (also called MMAW or stick) and the Gas Tungsten Arc Welding (GTAW) process (also called TIG) are both generally considered manual processes. This means you control all welding variables by hand. You hold the electrode holder or TIG torch in your hand and control travel angle, work angle, travel speed, arc length and the rate in which the electrode is fed into the joint all by hand. With the SMAW and GTAW processes CC is the preferred type of output from the power source.
Conversely, the Gas Metal Arc Welding (GMAW) process (MIG) and the Flux Cored Arc Welding (FCAW) process (flux core) are both generally considered semi-automatic processes. This means that you still hold the welding gun in your hand and control travel angle, work angle, travel speed and contact tip to work distance by hand. However, the rate in which the electrode is fed into the joint (known as wire feed speed) is controlled automatically with a constant speed wire feeder. With the GMAW and FCAW processes CV is the preferred output.