What is torch head used to weld metals?

A torch head, also known as a welding torch, is the part of a welding system that creates the heat necessary for welding metals together. It typically consists of a nozzle and a handle, and it is connected to a fuel source such as propane or acetylene. The nozzle directs the heat and flame onto the metal, while the handle allows the welder to control the flow of fuel and adjust the flame intensity. Torch heads are available in a variety of sizes and shapes to accommodate different welding applications and materials, and they can be used for both oxy-fuel and plasma cutting. Proper use and maintenance of a torch head are important for achieving quality welds and ensuring safety while working with hot flames and gases.