遼字石油化工大學⊙ Instructional objectives 1. Understand the meaning of cutting motion, cutting parameters and the type of tool 2. Understand the properties and categaries of tool materials 3. Understand the chip formation process, chip types and control. Understand the phenomenon of bue 4. Understand the cutting force, cutting power, cutting force measurement and empirical formula of it Master the influencing factors of cutting forceInstructional objectives 1.Understand the meaning of cutting motion, cutting parameters and the type of tool; 2.Understand the properties and categaries of tool materials. 3.Understand the chip formation process, chip types and control. Understand the phenomenon of BUE. 4.Understand the cutting force, cutting power, cutting force measurement and empirical formula of it. Master the influencing factors of cutting force