Unit 1 Introduction of CNC machine tool 1
Tuning-in 1
Text 1
Words study 3
Language study 4
Speaking practice 5
Technical reading 6
Unit 2 Automatic tool changer 8
Tuning-in 8
Text 8
Words study 11
Language study 12
Speaking practice 12
Technical reading 13
Unit 3 The coordinate systems 16
Tuning-in 16
Text 16
Words study 18
Language study 19
Speaking practice 20
Technical reading 20
Unit 4 Mathematics for NC programming 25
Tuning-in 25
Text 25
Words study 28
Language study 29
Speaking practice 30
Technical reading 31
Unit 5 Word addressing programming 35
Tuning-in 35
Text 35
Words study 36
Language study 38
Speaking practice 39
Technical reading 40
Unit 6 Speeds and feeds 45
Tuning-in 45
Text 45
Words study 46
Language study 48
Speaking practice 49
Technical reading 49
Unit 7 Preparation for programming 53
Tuning-in 53
Text 53
Words study 55
Language study 55
Speaking practice 57
Technical reading 57
Unit 8 Programming with subprogram 60
Tuning-in 60
Text 60
Words study 62
Language study 63
Speaking practice 63
Technical reading 64
Unit 9 Compensation 69
Tuning-in 69
Text 69
Words study 71
Language study 72
Speaking practice 73
Technical reading 73
Unit 10 Drives and motors 79
Tuning-in 79
Text 79
Words study 81
Language study 83
Speaking practice 83
Technical reading 85
Unit 11 Setup and maintain 87
Tuning-in 87
Text 87
Words study 89
Language study 89
Speaking practice 90
Technical reading 90
Unit 12 Modes of operation 96
Tuning-in 96
Text 96
Words study 98
Language study 99
Speaking practice 99
Technical reading 100
Unit 13 Program verification techniques 104
Tuning-in 104
Text 104
Words study 106
Language study 106
Speaking practice 107
Technical reading 108
Unit 14 CAD/CAM 111
Tuning-in 111
Text 111
Words study 112
Language study 114
Speaking practice 115
Technical reading 115
Appendix A G＆M code reference 121
Appendix B The sample of CNC machine specification 125
Appendix C Vocabulary 130
References 143