epro Combi Machine, Руководство пользователя

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As an example, when welding galvanized high-strength sheets, the electrodes are heavily
stressed. Frequent electrode milling with minimized material removal increases the constant
electrode shape which leads to less 17 welding splatters. Updated welding currents (steppes)
can be omitted and it makes it possible to lower energy costs.
Milling format:
The milling pattern of a new electrode can result in a possible offset depending on the
programming of the welding robot. An inaccurate program can severely affect the milling
result, weld quality and the electrode life. In the case of an offset-milled electrode, the milling
tool can quickly reach the electrodes cooling channel, resulting in an electrode failure. Possible
form of offset are shown in Figure 16.
Position the welding gun and electrodes so that

The active surface of both electrodes is center. Replace distorted electrodes during the
trial process so that adjustments are not affected by prior milling operations.

While milling a circular electrode (Form F according to ISO) no radius is recognizable
between the electrode active surface and flank.
Figure 16 Milling position for offset