Abstract: The objective of this paper is to identify and understand the various forging processes and to investigate the various forging defects. Initially, some important forging terms that are widely used in this field are discussed. A brief description about classification of forging process on the basis of temperature of work piece (hot, cold, and warm forging) and on the basis of arrangement of dies (open, impression and closed-die forging) is given. Die design parameters, die material requirements and selection of proper die materials are briefly discussed.