Tig Rct "Running Cold Tack" Process - CEA MATRIX X220 AC/DC Operator's Manual

TIG RCT "RUNNING COLD TACK" Process

New welding process that makes it possible to form very cold welding beads. This welding process makes it possible to benefit from all
the advantages of "coldTACK" welding, repeating a single spot in continuous mode, to achieve a perfect, cold welding bead. When "TIG
RCT" is used, the welding bead is much colder than can be achieved using "Pulse TIG", which makes it the ideal solution for welding
thin materials with very low heat transfer.
In addition, it makes it possible to stay at the initial and final current for an arbitrary length of time.
During the initial and final current phases, the power supply is constant and not intermittent, making it possible to heat the workpiece
up sufficiently before beginning to weld.
Another difference from spot welding, is the option to configure slope-up and slope-down ramps. During these ramps, the current is as
applied in the settings.
Via the welding process configuration menu, set:
• RCT Running ColdTACK welding process.
• TYPE OF IGNITION:
1. "HF" for welding with high frequency ignition.
2."HF PERFECT POINT" for welding with high frequency ignition.
With this type of ignition you can begin welding by igniting the arc at a "distance" or by touching the piece to be welded with the
tungsten tip, thereby automatically activating "HF PERFECT POINT" ignition.
The "HF Perfect POINT" type of ignition ensures perfect centring of the welding point. "Perfect-Point" mode comes about by touching
the workpiece to be welded with the tungsten tip at the exact point at which you wish to do the spot weld, then push the button and lift
the TIG torch. This will cause the Perfect-Point function to be activated automatically, ensuring a cold spot at the exact position required.
• Welding mode.
The possible parameter combinations are as follows:
WELDING PROCESS
RCT Running Cold TACK
(*) Advance welding mode can be activated as follows:
• CONFIGURATION menu
• WELDING section
• 2T-4T AUTO ADV line
• Choose ACTIVE
For the TIG RCT "RUNNING COLD TACK" process, besides the parameters described in the previous "TIG DC Welding" chapter, you
can set:
Number of consecutive impulses in the sequence at the individual points "n" (1 - 10) generated at a duty cycle
of 50%.
Time within which the impulses are generated.
Switch-off time.
TYPE OF IGNITION
HF
HF PERFECT POINT
19
WELDING MODE
DEFAULT ADVANCE
2T 2T ADVANCE (*)
4T
4T AUTO
4T AUTO
ADVANCE (*)
CYCLE
SPOT
COLD TACK