There are many influencial factors for tungsten electrodes life time. Both tip shapes and welding current can influence the use time of W electrodes and the quality of welding effect.
Besides the tip shapes, the suitable
current can also influence the lifetime of electrodes. In argon tungsten arc
welding, tungsten of a certain diameter has a certain range of welding current.
Excessive current will cause the tungsten electrode to burn too quickly, and
cause problems such as arc instability and tungsten in the weld. If the current
is too small, the arc will be unstable, and defects such as incomplete
penetration and lack of fusion will easily occur. The current carrying capacity
of tungsten electrode is not only related to their chemical composition, but
also affected by many other factors, such as welding torch type, electrode
chuck polarity, electrode diameter, power source type, electrode length from
the welding torch, welding position , Protect other properties, etc. The
commonly used current can refer to the following table:
If you have any inquiry of W electrode, please
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