Yes, tungsten needles can be used for microscale welding of metals. Tungsten has a very high melting point of 3422°C, which makes it an excellent material for welding applications where high temperatures are required. In microscale welding, tungsten needles can be used to create high-precision welds between two small pieces of metal, such as in the manufacturing of microelectronic devices or microsensors. The small diameter and high stiffness of tungsten needles also make them suitable for welding in tight spaces or hard-to-reach areas.
