In which situation would a blunter point tungsten electrode be advisable?

A blunter point tungsten electrode is advisable for higher current usages because it helps maintain a stable arc while providing deeper penetration into the base material. The larger surface area of the blunted tip allows it to handle increased heat input, making it suitable for welding applications that require a more robust arc and greater depth of fusion.

In contrast, thinner sheets of metal may benefit from a sharper point for more precise control and lower heat input to prevent burn-through. For intricate designs, a sharpened electrode allows for better maneuverability and separation of weld beads. Non-metal materials typically require a different approach altogether, often involving alternative welding processes rather than relying on tungsten electrodes in GTAW. Thus, the selection of electrode shape and point style is critical to achieving desired outcomes in specific welding scenarios.