Buttweld is a term that is commonly used in industrial and manufacturing settings. It refers to a specific type of welding process that involves joining two pieces of metal together by heating them to the point where they melt and then pressing them together. Buttweld is a common technique for welding pipes, fittings, and other metal components in a variety of applications. Synonyms for Buttweld include butt joint, butt fusion, butt welding, and fusion welding. These terms are often used interchangeably to describe the same process, but they can sometimes have slightly different connotations or implications depending on the specific context in which they are used.