A butt weld is a type of joint used in welding 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, continuous connections. The edges of the metal pieces are aligned and melted together using heat, often from an electric arc or gas flame. Butt welds can be made with different welding techniques, such as MIG welding, TIG welding, or stick welding. The quality of a butt weld depends on factors like the skill of the welder, the type of materials used, and the welding process. Proper preparation and technique are essential for achieving a strong and durable weld.