What is the effect of using excessive heat during the welding process?

Using excessive heat during the welding process can indeed lead to warping or burn-through. When the heat input is too high, it raises the temperature of the base material significantly, which can cause the metal to distort or warp. This is particularly problematic in materials that have low melting points or are thin, as they are more susceptible to changes in shape due to thermal expansion.

Additionally, excessive heat can lead to burn-through, where the weld pool penetrates too deeply into the base material, creating holes or thin spots. This compromises the integrity of the weld and can result in weaker joints or even complete failure of the weld. Maintaining appropriate heat levels is crucial to ensure effective fusion without damaging the workpieces. In contrast, while high heat might seem beneficial for achieving thorough penetration or clarity in some cases, the risks associated with warping and burn-through make it imperative to control heat input carefully during the welding process.