Optimal And Fast Spherical Cup Formation - EWM TETRIX 351 AC/DC COMFORT activArc Operating Instructions Manual

5.2.4

Optimal and fast spherical cup formation

A conically ground tungsten electrode (approx. 35°) is generally required to form an ideal
spherical cup.
Spherical cup formation preset
Operating
element
Balance setting in JOB "0"
0 0
+10 +10 -10 -10
+20 +20 -20 -20
+30 +30 -30 -30
% %
• Use a sample workpiece.
• Ignite arc with HF ignition (non-contact) and form required spherical cup for the application in
question.
• Set parameter values back to the original values.
Item No.: 099-000108-EWM01
Action Result
Set
Switch off pulse welding
Set spotArc time in line with the electrode diameter in use
(refer to the table of guideline values for spherical cup
formation depending on welding current)
Select AC type
Turn rotary dial to the left as far as it will go (positive)
Form spherical cups on the tungsten electrode
Turn rotary dial back to its original position (positive)
Functional characteristics
NOTE
spotArc operating mode
Square current output wave form
Trapezoidal current output wave form
Sinusoidal current output wave form
NOTE
TIG welding
Display
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