Design and function
Shielding gas supply (shielding gas cylinder for welding machine)
099-000159-EW501
16.08.2016
33
5.10.5 Optimal and fast spherical cup formation
Tungsten balling ensures optimum ignition and welding results for AC welding.
A prerequisite for optimum tungsten balling is a sharpened electrode (approx. 15–25°).
Tungsten balling should be performed on a test component as surplus tungsten may be melted and this
may lead to impurities on the weld seam.
Ball ing
Figure 5-16
• Turn balance setting in JOB 0 to the left stop position (positive).
• Ignite arc with HF start (no contact) and form required tungsten balling for the application in question.
• The end of this process is determined by the user.