Sharpening Tungsten Electrode For Stainless Steel/Aluminum Welding

For welding stainless steel, 2% thoriated tungsten electrodes are widely used for stainless steel welding. They offer good arc stability, excellent electron emission, and high resistance to contamination. However, due to concerns about the radioactivity of thorium, some users prefer alternatives. 2% ceriated tungsten electrodes are also suitable for stainless steel welding. They provide good arc starting and stability and offer an environment-friendly alternative to thoriated tungsten.

Welding aluminum requires tungsten electrodes with specific characteristics due to the metal's thermal conductivity and oxide layer.         Pure Tungsten (Green Tip): Pure tungsten electrodes are primarily used for AC (alternating current) welding of aluminum. They are suitable for thinner aluminum sheets but may not provide the best arc stability at higher amperages.1.5% lanthanated tungsten electrodes are also suitable for AC welding of aluminum. They offer better arc stability and improved performance at higher amperages compared to pure tungsten. Zirconiated tungsten electrodes are an alternative option for AC aluminum welding. They provide good arc stability and have a lower risk of tungsten contamination compared to pure tungsten.