遼字石油化工大學⊙ This chapter is an introduction to the fundamentals of the machining proces-ses and presents the basic concepts relevant to all machining operations The chapter opens with a discussion of the cutting tools, mechanics of chip formation in machining and the calculation of force and power in the machining Temperature rise in chip cutting tool are then dicussed Mechanisms of tool tear and failure follow. with flank wear characterized by th-e Taylor tool-life equation Crater wear nose wearand other forms of wear are also described The chapter ends with a discssion of surface finish, the integrity of parts produced by machining, and the factors involved in the machinability of various metallic materialsThis chapter is an introduction to the fundamentals of the machining proces-ses and presents the basic concepts relevant to all machining operations. The chapter opens with a discussion of the cutting tools,mechanics of chip formation in machining and the calculation of force and power in the machining. Temperature rise in chip cutting tool are then dicussed. Mechanisms of tool tear and failure follow,with flank wear characterized by th-e Taylor tool-life equation. Crater wear,nose wear,and other forms of wear are also described. The chapter ends with a discssion of surface finish,the integrity of parts produced by machining,and the factors onvolved in the machinability of various metallic materials