Jasic MIG 200 - OPERATION - MIG; MIG;MAG welding mode

16
OPERATION - MIG
Before starng any welding acvity ensure that you have suitable eye protecon and
protecve clothing. Also take the necessary steps to protect any persons within the welding
area.
MIG/MAG welding mode
MIG - Metal Inert Gas Welding, MAG - Metal Acve Gas Welding, GMAW - Gas Metal Arc Welding
MIG welding was developed to help meet producon demands of the
war and post war economy which is an arc welding process in which a
connuous solid wire electrode is fed through a MIG welding gun and
into the weld pool, joining the two base materials together.
A shielding gas is also sent through the MIG welding gun and
protects the weld pool from contaminaon which also enhances the
arc.
Connect the MIG torch leads as detailed on page 12.
Work return lead to ‘-’ (B) and torch trailing lead to
‘+’ (A).
Ensure that a suitable inert gas supply is connected.
Switch the power switch on the back panel to “ON”
the machine is started with the power LED on and
the fans are running.
Switch the MMA/MIG switch to MIG mode
(ensuring the standard/spool gun switch is set to
standard).
Open the gas valve of the cylinder and adjust the gas regulator to obtain the desired ow rate.
Adjust the “voltage control knob in MIG” and “wire feed speed control knob in MIG” on the front panel of
the machine to get the correct welding voltage and welding current.
Operate the torch trigger and welding can be carried out.
Where required adjust the burn-back me potenometer (above the feed unit inside the machine) to get
the proper wire sck-out. One second aer the arc stops, the gas supply will be cut o.
The MIG wire guide below can vary depending on material used, work piece thickness, welding posion
and joint form.
MIG - Gasless
The operaon method is the same as the above MIG operaon except there are no gas opons and the
output polarity is reversed (see page 12).
Wire Diameter DIP Transfer Spray Transfer
(mm)
Current (A) Voltage (V) Current (A) Voltage (V)
0.6 30 ~ 80 15 ~ 18 n/a n/a
0.8 45 ~ 180 16 ~ 21 150 ~ 250 25 ~ 33
1.0 70 ~ 180 17 ~ 22 230 ~ 300 26 ~ 35
1.2 60 ~ 200 17 ~ 22 250 ~ 400 27 ~ 35
1.6 100 ~ 280 18 ~ 22 250 ~ 500 30 ~ 40
A
B