Braze welding is the process of joining two pieces of metal using a filler metal that melts at a higher temperature than soldering. There are several synonyms for braze welding, including Silver brazing, hard soldering, and fusion welding. Silver brazing involves using an alloy that has a melting point of 840-900°C and is commonly used in the aerospace industry. Hard soldering refers to using a filler metal that melts at a higher temperature than soft solders but lower than brazing. Fusion welding is the process of melting and combining two or more metal pieces to form a joint. Regardless of the term used, braze welding is a critical technique used in metalworking, plumbing, and other industries where strong, durable joints are required.