Unit1 Engineering Drawing 1
1.1 Coordinate System 1
1.2 Types of Views 1
1.3 Fits 3
Words and Expressions 5
Notes 6
Exercises 7
课文参考译文 8
第1单元 工程制图 8
Technical Reading 11
Unit2 Mechanical Components 13
2.1 Shafts 13
2.2 Shaft Attachments 13
2.3 Clutches 14
2.4 Screws 15
2.5 Springs 15
2.6 Gears 16
2.7 Couplings 17
2.8 Seals 18
2.9 Rolling Contact Bearings 19
Words and Expressions 20
Notes 21
Exercises 23
课文参考译文 25
第2单元 机械零件 25
Technical Reading 31
Unit3 Engineering Materials and Their Properties 32
3.1 Engineering Materials 32
3.2 Properties of Materials 33
Words and Expressions 33
Notes 34
Exercises 35
课文参考译文 37
第3单元 工程材料及其性能 37
Technical Reading 39
Unit4 The Design and Selection of Mechanism Systems 40
4.1 Design of Mechanism Systems 40
4.2 Selection of Mechanisms 42
Words and Expressions 45
Notes 46
Exercises 47
课文参考译文 48
第4单元 机构系统的设计与选用 48
Technical Reading 53
Unit5 Numerical Control 55
5.1 Introduction 55
5.2 Principles of NC Machines 56
5.3 Types of Control Systems 57
5.4 Computer Numerical Control 57
5.5 Advantages and Disadvantages of NC 58
Words and Expressions 59
Notes 59
Exercises 61
课文参考译文 62
第5单元 数字控制 62
Technical Reading 65
Unit6 NC Operation 67
6.1 Describing the Operation Panel 67
6.2 Screen Reading 72
Words and Expressions 74
Notes 75
Exercises 76
课文参考译文 77
第6单元 数控操作 77
Technical Reading 84
Program Input and Output 84
Unit7 MachineTools 86
7.1 Lathes and Lathe Operations 86
7.2 Milling Machine and Milling 88
7.3 Machining Center 90
Words and Expressions 91
Notes 91
Exercises 92
课文参考译文 94
第7单元机床 94
Technical Reading 98
Unit 8 Computer Aided Design 100
8.1 CAD System’s Work 100
8.2 Exchange Specifications 100
8.3 Elements of CAD System 101
Words and Expressions 102
Notes 103
Exercises 103
课文参考译文 104
第8单元 计算机辅助设计 104
Technical Reading 106
Unit9 Computer Aided Manufacturing and Flexible Manufacturing System 109
9.1 Computer Aided Manufacturing 109
9.2 Flexible Manufacturing System 110
Words and Expressions 112
Notes 112
Exercises 113
课文参考译文 115
第9单元 计算机辅助制造与柔性制造系统 115
Technical Reading 117
Unit10 Computer-integrated Manufacturing Systems 119
10.1 Introduction 119
10.2 Subsystems of CIM 119
10.3 Database 121
10.4 The CIM Wheel 122
Words and Expressions 123
Notes 123
Exercises 124
课文参考译文 126
第10单元 计算机集成制造系统 126
Technical Reading 129
Unit11 Nontraditional Machining Processes 132
11.1 Electrical Discharge Machining 132
11.2 Electrochemical Machining 133
11.3 Ultrasonic Machining 133
11.4 Laser Beam Machining 133
11.5 Development Trends in the Field of Machining by Cutting and by Erosion 134
Words and Expressions 134
Notes 135
Exercises 136
课文参考译文 138
第11单元 非传统加工工艺 138
Technical Reading 140
Unit12 Dialogue Practice 141
12.1 Outside the Exhibition Hall 141
12.2 Inside the Exhibition Hall 141
12.3 In the Negotiation Booth 142
Words and Expressions 142
Notes 143
Exercises 144
课文参考译文 145
第12单元 对话练习 145
Technical Reading 147
参考文献 149