Socket Pin
Function
1
Spool gun motor
2
Not connected
3
Not connected
4
Spool gun motor
5
10k ohm (maximum) connection to 10k ohm remote control potentiometer.
6
Zero ohm (minimum) connection to 10k ohm remote control potentiometer.
7
Wiper arm connection to 10k ohm remote control potentiometer.
8
Not connected
9
Not connected
3.1.11 MIG Welding
Definition of MIG Welding
MIG (metal inert gas) welding also known as GMAW (gas metal arc welding) or MAG (metal
active gas welding), is a semi-automatic or automatic arc welding process in which a continuous
and consumable wire electrode and a shielding gas are fed through a welding gun. A constant
voltage, direct current power source is most commonly used with MIG welding. There are four
primary methods of metal transfer in MIG welding, called short circuit (also known as dip transfer)
globular transfer, spray transfer and pulsed-spray, each of which has distinct properties and
corresponding advantages and limitations. To perform MIG welding, the basic necessary
equipment is a welding gun, a wire feed unit, a welding power supply, an electrode wire, and a
shielding gas supply. Short circuit transfer is the most common used method whereby the wire
electrode is fed continuously down the welding torch through to and exiting the contact tip. The
wire touches the work piece and causes a short circuit the wire heats up and begins to form a
molten bead, the bead separates from the end of the wire and forms a droplet that is transferred
into the weld pool. This process is repeated about 100 times per second, making the arc appear
constant to the human eye.
Remote Control Socket
32
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ADVANCEMIG 255C
