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WELD CHECKERS
WHY IS A WELDING AMMMETER IS NECESSARY?
The necessity of welding quality control for micro resistance welding
Micro resistance welding quality is determined by the following four elements.
  1. Current
  2. Weld time
  3. Force applied
  4. Electrode tip diameter
In order to maintain stable welding quality at all times, it is necessary to check each of these four elements periodically. However, except for the electrode tip diameter, it is not possible to check the three elements visually. Therefore, it is necessary to measure and monitor them with a weld checker and manage them correctly.
Can measure large current in a short period of time.
Because large welding current flows in a short period of time and there are various waveforms, it is necessary to measure with a welding ammeter that is specially designed for measuring the welding current waveform and current value.

Can measure and monitor restricted to the necessary range.
In resistance welding in general, the start and end part of the applied current does not have so much effect on the weld strength. By monitoring the weld current in a specific range where nugget is formed, the more effective management of the weld current is possible ignoring the less important part of the current applied to the work piece.
Weld Checkers Datasheetpdf
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