Unit 1 Getting to Know Numerical Control 1
Unit 2 Types of NC Machine Tools 11
Unit 3 What Is an NC Machine Tool Composed of? 21
Unit 4 The Use of the Coordinate System 31
Unit 5 What Is a Machine Control Unit? 41
Unit 6 How to Operate NC Machine Tools 51
Unit 7 Can You Write an NC Program? 61
Unit 8 Tools for NC Machines 73
Unit 9 Working in Workshop 83
Unit 10 Getting to Know Turning Center 93
Unit 11 Operating Milling Machine 103
Unit 12 Getting to Know Machining Center 113
Unit 13 The Future of NC Technology 123
Words and Phrases 133