The sharpening angle of the tungsten electrode directly affects the shape and heat distribution of the arc, which in turn determines the quality and effect of welding. Generally, the sharper the sharpening angle, the more concentrated the arc, and the heat is focused on a smaller area, making it suitable for welding thin plates or workpieces with high detail requirements. This sharp angle helps achieve narrow and deep welds, reducing the heat-affected zone and thus reducing the risk of deformation and welding defects.
On the contrary, when the sharpening angle is dull, the arc will be more dispersed, and the heat coverage area will increase, which is suitable for thick plate welding or high current conditions. This blunt sharp angle increases the durability of the electrode head and reduces ablation, but the weld width is relatively large and the heat-affected zone is enlarged.
Therefore, according to the thickness of the welding material and the welding process requirements, it is very important to choose the sharpening angle reasonably. Generally, a sharp angle (15°~30°) is recommended for thin plates, and a blunt angle (45°~90°) is recommended for thick plates to achieve the best welding quality and electrode service life.
More details of tungsten electrodes, please visit website: http://tungsten.com.cn/tungsten-electrodes.html
Please contact CHINATUNGSTEN for inquiry and order of tungsten needles:
Email: sales@chinatungsten.com
Tel.: +86 592 5129595
