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GUIDE TO MIG/MAG WELDING
Before starng any welding acvity ensure that you have suitable eye protecon and
protecve clothing. Also take the necessary steps to protect any persons within the welding
area.
Wire inch switch
The wire inch buon when pressed and held allows the operang to acvate the feed motor which in turn
feeds the welding wire through the MIG torch cable, torch head and p.
Burn back control dial:
In the event that the welder was to stop welding and all funcons of the machine stopped simultaneously
then the consumable ller wire would in all likelihood freeze in the weld pool. In order to avoid this
happening the burn back feature is present on this machine.
The burnback control is used to adjust and set the amount of ‘sck out’ MIG wire that protrudes from the
MIG torch p aer the torch trigger has been released and welding has stopped.
To decrease burnback me (or lengthen the amount of wire scking out from the MIG torch p at the end
of welding), turn the burnback control knob an clockwise.
To increase burnback me (or shorten the amount of wire scking out from the p at the end of weld),
turn the Burnback Control knob clockwise.
The burn back control dial is located on the inside panel next to the wire feed motor.
Inductance control (MIG 352C only)
Variable inductance control (see page 13 for reference) allows you to tune the welding arc to suit your
welding applicaon, this is used to minimise spaer and to control the arc from crisp through to so.
Lowering the inductance is ideal when welding with smaller diameter wires for a crisp stable arc with
maximum deposion & minimum heat into the work piece.
Increasing inductance soens the arc giving more penetraon, reduces spaer & increases heang of
the work piece
Some quick reference handy ps for the MIG/MAG welding process are:
When welding, try to use an electrode sck out (the distance between the weld and the contact p)
of around 6-8mm.
When welding thin materials try and use smaller MIG wire diameters and for thicker materials use
thicker wires.
Make sure you select the correct MIG wire type for the material to be welded.
Ensure the MIG welding gun has the correct sized contact p and type of liner.
Always ensure you have the correct size drive rolls and torch liner for the wire size selected.
Select the correct gas to achieve the correct weld characteriscs and nish.
For opmum control of the weld keep the wire at the leading edge of the weld pool.
Before commencing welding, ensure a comfortable and stable posion.
Try to keep the welding torch as straight as possible when welding to ensure the best feed.
Carry out daily housekeeping on the condion of the welding torch and drive rolls.
Keep any consumables clean and dry to avoid contaminaon such as oxidaon and damp.