A welding machine is a device used to join materials, typically metals, by applying heat and pressure. It works by melting the edges of the materials to be joined, allowing them to fuse together as they cool. There are various types of welding machines, including MIG (Metal Inert Gas), TIG (Tungsten Inert Gas), and stick welding machines, each suited for different applications and materials. Welding machines can be found in various settings, from industrial manufacturing to home workshops. They are essential tools for creating strong, durable connections in construction, automotive repair, and metal fabrication. Proper safety measures, such as wearing protective gear, are crucial when using a welding machine to prevent injuries.