Design and function
TIG welding
099-000120-EW501
26.07.2011
35
5.6.9
Optimal and fast spherical cup formation
NOTE
A conically ground tungsten electrode (approx. 35°) is generally required to form an
ideal spherical cup.
Spherical cup formation preset
Operating
element
Action Result
Set
spotArc operating mode
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
Square current output wave form
Trapezoidal current output wave form
Sinusoidal current output wave form
Balance setting in JOB "0"
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)
NOTE
• 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.
