👉 Welding involves the use of high-energy light particles, primarily photons, to melt and fuse two or more metals at their joint. These photons, which are essentially packets of electromagnetic energy, transfer their energy to the metal surfaces upon impact, causing localized heating. This intense heat melts the metal, creating a molten pool that can flow and solidify into a strong, unified structure. The process relies on the principle of thermal fusion, where the heat generated by the light particles overcomes the metal's surface tension and interatomic forces, allowing the atoms to rearrange and form a new, continuous metallic bond. This method is widely used in industries for joining various metals, from structural steel to aluminum, due to its precision, speed, and ability to produce high-quality welds with minimal distortion or contamination.
