What is exothermic welding?

Exothermic welding, also known as thermite welding, is a process that joins metals by using a chemical reaction between a powdered metal and an oxidizer, typically aluminum and metal oxides. When ignited, this reaction generates intense heat, melting the metal and allowing it to fuse with the workpieces, creating a strong, conductive bond. This technique is commonly used for making electrical connections, particularly in rail and electrical industries, due to its durability and resistance to corrosion. The process is efficient and can be performed in various environments, including outdoors.