Butt welds are a type of welding joint where two pieces of metal are joined end-to-end. This method is commonly used in various industries, including construction and manufacturing, to create strong, permanent connections. The edges of the metal pieces are aligned and melted together using heat, often from an electric arc or gas flame. The strength of a butt weld depends on factors like the materials used, the welding technique, and the skill of the welder. Proper preparation and cleaning of the metal surfaces are essential for achieving a high-quality weld that can withstand stress and pressure in applications such as pipelines and structural frameworks.