Daihen varstroj VARMIG 231-i LCD, Owner'S Manual, Page: 52 / 100

20
The electrode wire stick out from the MIG Torch nozzle should be between 10mm to 20.0mm. This distance
may vary depending on the type of joint that is being welded
Travel Speed
The speed at which the molten pool travels influences the width of the weld and penetration of the welding run
MIG Welding (GMAW) Variables
Most of the welding done by all processes is on carbon steel. The items below describe the welding.
variables in short-
arc welding of 24gauge (0.024”, 0.6mm) to ¼” (6.4mm) mild sheet or plate. The applied
techniques and end results in the GMAW process are controlled by these variables.
Preselected Variables
Preselected variables depend upon the type of material being welded, the thickness of the material, the welding
position, the deposition rate and the mechanical properties. These variables are:
Type of electrode wire
Size of electrode wire
Type of gas (not applicable to self-shielding wires FCAW)
Gas flow rate (not applicable to self-shielding wires FCAW)
Primary Adjustable Variables
These control the process after preselected variables have been found. They control the penetration, bead
width, bead height, arc stability, deposition rate and weld soundness. They are:
Arc Voltage