绪论 1
Lesson 1 Mechanical Properties of Metals 11
Reading Materials 15
(A)Hardness and Hardness Testing 15
(B)Stress and Strain 19
Lesson 2 Hardening and Tempering 23
Reading Materials 30
(A)Annealing and Normalising 30
(B)Carburising 32
Lesson 3 Plain Carbon Steel 36
Reading Materials 42
(A)Cast Iron 42
(B)Classification System of Plain Carbon and Low Alloy Steels 46
Lesson 4 Sand Casting 49
Reading Materials 57
(A)Die Casting 57
(B)"Lost Wax" Precision Casting and Centrifugal Casting 60
Lesson 5 Forging 64
Reading Materials 73
(A)Shearing 73
(B)Cold Working 76
Lesson 6 Arc Welding 80
Reading Materials 87
(A)Oxyacetylene Welding 87
(B)Soldering and Brazing 90
Lesson 7 Gears 94
Reading Materials 101
(A)Cams 101
(B)Sliding Bearings 104
Lesson 8 Couplings 107
Reading Materials 115
(A)Shafts 115
(B)Springs 117
Lesson 9 Tolerances and Fits 120
Reading Materials 127
(A)Dimensional Measurement 127
(B)Gage Blocks 129
Lesson 10 Series and Parallel dc Networks 133
Reading Materials 139
(A)The L and C Elements 139
(B)Transistors 142
Lesson 11 Pressure and Flow Controls 146
Reading Materials 152
(A)Hydraulic Systems 152
(B)Hydraulic Pumps 154
Lesson 12 The Lathe 158
Reading Materials 163
(A)Turning to a Shoulder 163
(B)How to Cut a Right-Hand ACME Thread on a Lathe 166
Lesson 13 The Main Elements of Horizontal Milling Machines 169
Reading Materials 176
(A)Controls of Horizontal Milling Machines 176
(B)Milling Operations 179
Lesson 14 Grinding 181
Reading Materials 186
(A)Elements of a Surface-Grinding Machine 186
(B)Centerless Grinding 189
Lesson 15 Drills and Drill Presses 193
Reading Materials 198
(A)Horizontal Shapers 198
(B)Cutting Fluids 200
Lesson 16 N/C Machine Tool Elements 204
Reading Material Advantages and Disadvantages of N/C 211
Lesson 17 Electrical Discharge Machining 214
Reading Material Electro-chemical Machining 220
Lesson 18 Cutting Tool Geometry 223
Reading Materials 229
(A)Milling Cutters 229
(B)Broaching 233
Lesson 19 Drill Jigs 236
Reading Materials 243
(A)Mandrels 243
(B)Chucks 246
Lesson 20 Value Engineering 250
Reading Materials 255
(A)Quality Control and Quality Assurance 255
(B)Industrial Engineering 257
Appendix Ⅰ Prefixes and Suffixes Often Used in Scientific English 260
Appendix Ⅱ 参考译文 263
Appendix Ⅲ Vocabulary 301
Appendix Ⅳ Phrases and Expressions 339