01053015 MANUFACTURING; Department of Mechanical Engineering, KMITL
©2010 John Wiley & Sons, Inc. M P Groover, Principles of Modern Manufacturing
Physics of Welding
Fusion is most common means of achieving coalescence in welding
To accomplish fusion, a source of high density heat energy must be supplied to the faying surfaces
Resulting temperatures cause localized melting of base metals (and filler metal, if used)
For metallurgical reasons, it is desirable to melt the metal with minimum energy but high heat densities