ABSTRACT
In a wide variety of manufacturing processes, heat transfer and fluid flow considerations play a very important role. These include processes such as casting, crystal growing, hot rolling, optical fiber drawing, solder ing, welding, gas cutting, plastic injection molding and extrusion, metal forming, and heat treatment. Table 7.1 presents different types of materials processing operations along with a few important examples. Such manufac-
turing processes, in which the heat transfer and fluid flow aspects are of crucial importance in determining the properties of the final product, are also often categorized as thermal-based manufacturing or materials pro cessing. A few typical thermal manufacturing processes are sketched in Fig. 7.1, including optical glass fiber drawing, continuous casting, mold casting, and plastic screw extrusion. A fairly wide range of important manufacturing techniques involve thermal processing of materials. Consequently, a tremen dous research effort has been directed at the thermal transport that is of interest in such processes.
