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PATON
®
ADI 200 STANDARD TIG/MMA MIG/MAG
5.2. OPERATIONAL CYCLE OF THE SEMIAUTOMATIC ARC WELDING
PROCESS
The procedure for changing the values of the operational parameters of the welding unit is described
in Section 6.1. The instant of time t1 for starting the preweld gas purging and the instant of time t2 for
the post weld gas purging of the weld area should be set at the electrode wire feeding unit.
5.3. LINEAR REDUCTION OF WELDING VOLTAGE AT THE END OF
THE WELDING PROCESS
This function is designed for the smooth welding of a welding crater, which can be formed in the
welding pool due to electromagnetic blow forces generated by the welding arc. The crater so
formed can be a source of future welding defects. This function should be activated by releasing the
control button on the welding torch at the end of the welding process. After this, the movement of
the welding torch should be terminated, and the welding crater should be welded in the linear
welding voltage reduction mode. By default, the linear welding voltage reduction period
[TIME
DOWN VOLTAGE
]
is 1.0 s and can be varied by the operator at his option
(see Section 6 .1).
t (s)
t (s)
t (s)
