Oxy-Fuel Welding is a process that uses a flame produced by burning a mixture of oxygen and fuel gas, typically acetylene, to melt and join metals. This technique is widely used in metal fabrication and repair work due to its versatility and effectiveness. The welder controls the flame's temperature and size by adjusting the gas flow, allowing for precise welding on various materials. The equipment for oxy-fuel welding includes a welding torch, gas cylinders, and hoses. Safety precautions are essential, as the process involves high temperatures and flammable gases. Proper training and protective gear help ensure safe operation while achieving strong welds.