Unit 1 Introduction to Computer Numerical Control Manufacturing 1.1 Introduction 1.2 The History of Numercal Control 1.3 Numerical Control Defintion,Its Concepts and Advantages 1.4 Defintion of Computer Numerical Control and Ist Components 1.5 NC Compared with CNC 1.6 Types of CNC Equipment Exercises …… Unit 2 The Axis System Unit 3 Points and Coodrdinates Unit 4 Machine movements and control Unit 5 Part Programming Calculations Unit 6 Tooling for Computer Numerical Control Unit 7 Program Planing Unit 8 Word Address Programming Unit 9 Basic Programming Unit 10 Program Flow Unit 11 Tool Length Offsets and Zero Persets Unit 12 Tool Radius Compensation Unit 13 CAD/CAM Unit 14 Beyond CNC machining 附录 参考文献