This chapter provides classification of metal forming processes based on types of forces applied onto metals. • Mechanics of metal forming will be outlined to understand stress criterion for plastic deformation. • Differences between hot and cold working will be highlighted and advantages-disadvantages of hot and cold working will be given. • Effects of deformation speed and friction on metal working process will be included. | Fundamentals of metalworking Chapter 1 Subjects of interest Introduction objectives Classification of metal processes Mechanics of metalworking Flow curves Effects of temperature on metalworking - Hot working - Cold working Effects of metallurgical structure on forming processes Effects of speed of deformation on forming processes Effects of friction and lubricant Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 Objectives This chapter provides classification of metal forming processes based on types of forces applied onto metals. Mechanics of metal forming will be outlined to understand stress criterion for plastic deformation. Differences between hot and cold working will be highlighted and advantages-disadvantages of hot and cold working will be given. Effects of deformation speed and friction on metal working process will be included. Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 Classification of metal forming processes based on the type of force applied on to the work piece as it is formed into shape . Direct-compression-type processes Indirect-compression processes Tension type processes Bending processes Shearing processes Suranaree University of Technology Tapany Udomphol Jan-Mar .
