STAMOS PROXUS 200D Manual De Instrucciones página 35

10.1. Setting the MIG/MAG welding parameters
Gas Metal Arc Welding (GMAW) is an arc welding process in which the welding wire is fed through motorized feed
rolls to the welding gun. The welding arc is between the workpiece and the end of the wire that fuses into the weld
pool. The arc and weld pool are shielded by the gas flow from the torch or, in the case of "self-shielded" wires, by
gases generated by the wire core. This process is very versatile, because thanks to the selection of the appropriate
wire and shielding gas, it can be used to weld materials of various thicknesses (from thin sheet metal to thicker
plates) and various metals (from carbon steel to aluminum alloys).
Depending on the type of shielding gas used, there are two basic methods:
MIG ("Metal Inert Gas") - arc welding with a consumable electrode in the form of a solid wire in a shield of inert gases
(argon, helium).
MAG ("Metal Active Gas") - arc welding with a consumable electrode in the form of a solid wire in the shield of active
chemical gases or gas mixtures (carbon dioxide, gas mixtures - CO2 + Ar, CO2 + Ar + O2 and others).
Selection of the sheet thickness ("Thickness")
Turn the knob to adjust the thickness of the plate to
be welded.
Selecting the wire diameter ("Wire Ø")
Select the appropriate wire diameter. The device
will recommend the correct voltage and welding
current.
Selecting the operating mode of the welding torch
("2T/4T")
2T mode: when the torch button is pressed, welding
starts. The button must be pressed to continue.
Then the button is released, welding will be stopped.
4T mode: When the torch is pressed and released,
welding begins. When pressed again and released,
welding will stop. The 4T mode is recommended for
longer welding.