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Pure tungsten electrodes the one without any addition of oxide. This allows the tip
to form a clean, balled end which provides good arc
stability on AC. The power of electronic transgression is as
high as 4.5ev. Requiring a high voltage for arc derivation,
it has a low current capacity and is easily burnt. It’s good
for application under the condition of AC and in the
situation of low welding requirements.
Pure tungsten electrode can form a clean, balled tip when heated and provides great arc stability for AC welding with balanced wave. Pure tungsten also provides good arc stability for AC sine wave welding, especially on aluminum and magnesium, but is not typically used for DC welding (it does not provide as strong of arc starts as thoriated or ceriated electrodes).
Pure Tungsten Electrode is generally used in the welding of aluminum and magnesium alloys (AC) and used under alternating current.
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