Usage Precautions of Tungsten Needle
Usage precautions of tungsten needle are essential to ensure stable performance in demanding applications. Tungsten needle is a precision functional component made of high-purity tungsten or tungsten alloy, featuring a high melting point (~3410°C), excellent high-temperature strength, stable electron emission, and strong resistance to arc erosion. These properties enable stable performance under extreme conditions such as high temperature, high electric field, and high vacuum. CTIA tungsten needle is widely used in semiconductor manufacturing, Electrical Discharge Machining (EDM), probing systems, and Tungsten Inert Gas Welding (TIG).
The performance of tungsten needle depends not only on material purity and processing quality, but also on tip geometry, surface roughness, current density, and operating environment. Improper operation under high temperature or arc conditions may cause recrystallization, oxidation, contamination, or tip deformation, affecting discharge stability and service life. Therefore, key factors such as current control, grinding method, surface cleanliness, and protective atmosphere should be systematically managed.
As a tungsten needle manufacturer, CTIA recommends establishing Standard Operating Procedures (SOP) to control current range, operation time, and grinding processes. Regular inspection of tip geometry, symmetry, and surface condition is essential to ensure stable arc performance and consistency. For applications such as EDM and TIG welding, parameters including current density, tip angle, and operating environment should be optimized to avoid overload and extend service life. CTIA provides application-based selection and technical support according to customer requirements.
If there is any interest in tungsten products, please feel free to contact us through the following methods.
Email: sales@chinatungsten.com
Tel.: +86 592 512 9696/+86 592 512 9595
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