Answer to Question #158374 in Physical Chemistry for deepak

Question

Do you think that for joining of metal energy is required? Analyze

Answer 1

Metal Joining Processes: Welding, Riveting, Bolting, Brazing, Soldering. 13. Welding is a process of permanently joining materials. Welding joins different metals/alloys with a number of processes, in which heat is supplied either electrically or by means of a torck.

Welding is a metal joining process in which two or more parts are joined or coalesced at their ... This zone consists of a thin band of base metal that was ... (i) heat energy required to change the temperature of solid metal to its melting point .

Many different energy sources can be used for welding, including a gas flame (chemical), an electric arc (electrical), a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding may be performed in many different environments, including in open air, under water, and in outer space .