What is the term for a professional who joins metals using high heat and pressure?

The term for a professional who joins metals using high heat and pressure is welder. A welder is specifically trained to employ various techniques and equipment to fuse metal components together, typically through processes like arc welding, MIG welding, TIG welding, or oxy-fuel welding. This occupation requires skilled hands and an understanding of how different metals react to heat and pressure, ensuring strong and durable joints are created for structural integrity.

The other roles listed have distinct functions within construction and manufacturing. A pipefitter is specialized in installing and repairing piping systems, while an electrician focuses on electrical systems and wiring. A structural engineer is involved in the design and analysis of structures to ensure safety and stability, but does not perform metal joining tasks directly. Understanding these distinctions helps clarify the specific responsibilities associated with each trade and highlights the unique skills required of a welder.