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9 Welding Process
– Heat is generated and melts the tip of the welding element together with an area
of the workpiece of approx. the same size (see figure,
position 3
).
– As soon as the welding element touches the workpiece, the arc extinguishes (see
figure,
position 4
).
With high plunging speed, the gap closes faster after evaporation of
the ignition tip and welding time (arc burn time) is reduced.
–
Now capacitors are short-circuited and remaining energy is flowing off.
– The pressure spring continues to press the welding element into the weld pool.
–
The weld pool solidifies and the welding element is firmly fixed to the workpiece.
–
Time between ignition of the arc and solidification of the weld pool is about 3 ms.
Summary of Contents for 92-10-1504B
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