A flux cored welding power supply is also a MIG welding power supply, they are the same machine. That is a “Constant Voltage Power Supply”.
Constant voltage power supplies keep the voltage near, or at the same level. Unlike a TIG, or Stick welder, that keeps the amperage consistent.
In the flux cored welder the amperage is changed with the wire feed speed. The faster the wire feeds, the more contact the electrode has, producing more amperage, and heat.
The voltage type used is D/C direct current like the type current produced by a battery. The polarity used in industrial flux core arc welding is
typically D/C electrode (+) positive. This means that the handle is the positive side of the circuit, or the electricity flows from the metal to the
welding handle. This is typical when larger electrodes are used. When welding with smaller electrodes and sheet metals,
the polarity is changed to D/C electrode (-) negative.
The main difference between FCAW, and a MIG welder’s are, flux cored arc welding power supplies are available with, much, more, power! Basically they are an extremely powerful MIG welder!
Some flux core arc welders come with the capabilities of running over an extremely hot, 1000 plus amps! That is where they leave MIG welding in the dust for production.
Date: 2023-04-10 hits: 418 Return
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