Unit 1 Mechanical Engineering Drawing 1
Section 1 Reading 1
1．Detail Drawings 1
2．Assembly Drawings 5
Section 2 Have a Try 6
Section 3 Speaking Activity 8
Section 4 Learn More:Views and Sections 9
Unit 2 Electrical Control Drawing 13
Section 1 Reading 13
1．The Electrical Elements,Circuit Components and the Symbols 13
2．Electric Control Wiring 15
3．Typical Electric Control Circuits of the Machine Tools 16
Section 2 Have a Try 18
Section 3 Speaking Activity 19
Section 4 Learn More:Relay Device Components 19
Unit3 Engine Machine Tools and Operation 23
Section 1 Reading 23
1．The Types and Main Purposes of the Engine Machine Tools 23
2．Lathe 23
3．Milling Machine 24
4．Drilling Machine 26
5．Shaper 27
6．Grinding Machine 28
Section 2 Have a Try 28
Section 3 Speaking Activity 30
Section 4 Learn More:Introduction of the Surface Grinders 31
Unit 4 NC Machine and NC Programming 35
Section 1 Reading 35
1．Application,Basic Components and Types of NC 35
2．Main Switches on the Operator's Panel 36
3．Control Panel and its Main Functions 37
4．The Commonly Used Codes and Control Functions 39
Section 2 Have a Try 40
Section 3 Speaking Activity 41
Section 4 Learn More:The Machining Center 42
Unit 5 Mould Technique 45
Section 1 Reading 45
1．Kinds of Mould 45
2．Functions of the Sprue,Runner,and Gate 45
3．Characteristics of Restrictive Gate and Nonrestrictive Gate 46
Section 2 Have a Try 47
Section 3 Speaking Activity 49
Section 4 Learn More:Function of Major Parts for an Ejection System 49
Unit 6 Metal Cutting 53
Section 1 Reading 53
1．Turning Process,Cutting Tools and the Cutting Material 53
2．Milling 55
3．Drilling 57
4．Grinding 58
5．Shaping and Planing 61
6．Boring 61
7．Properties and Materials of Cutting Tools 62
Section 2 Have a Try 63
Section 3 Speaking Activity 64
Section 4 Learn More:Casting,EDM 65
Unit 7 Programmable Logic Controller(PLC) 67
Section 1 Reading 67
1．Types of Control Devices 67
2．Applications of PLC 67
3．Advantages and Architecture of PLC 68
4．PLC Programming Languages 69
5．PLC Programming Functions 70
Section 2 Have a Try 70
Section 3 Speaking Activity 72
Section 4 Learn More:PLC Operation 73
Unit 8 Electrical Instrument Measurement 77
Section 1 Reading 77
1．Electrical Measurement 77
2．Multimeters 77
3．Ohmmeters and Mega-Ohmmeters 79
4．Oscilloscopes 80
5．Transformers 81
6．How to Measure the Voltage 82
Section 2 Have a Try 83
Section 3 Speaking Activity 84
Section 4 Learn More:Introduction of Manual Signal Generator 85
Unit 9 Troubleshooting and Maintenance(CNC Machine) 87
Section 1 Reading 87
1．Safety Notes for CNC Machine Operations 87
2．Fault Diagnosis and Action 88
3．Maintenance 90
4．Example Maintenance for a Horizontal MC 91
Section 2 Have a Try 93
Section 3 Speaking Activity 95
Section 4 Learn More:Troubleshooting for Surface Grinders 95
Unit 10 Electronic Technique 99
Section 1 Reading 99
1．Resistors 99
2．Capacitors 100
3．Inductors 100
4．Semiconductor Diode 101
5．Transistor 102
6．Operational Amplifier 103
Section 2 Have a Try 103
Section 3 Speaking Activity 104
Section 4 Learn More:Integrated Circuit 105
Key to"Have a Try" 107
Reference Translation for Reading 110
AppendixAppendix 1 Common Terminology in Engineering Drawing 139
Appendix 2 Common Vocabulary for Heat-Treatment and Engineering Materials 146
Appendix 3 Terminology in Electronic Information 149