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 |  موضوع: كتاب Engineering Fundamentals - Roger Timings الخميس 30 نوفمبر 2017, 11:02 pm | |
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Engineering Fundamentals
Roger Timings
ويتناول الموضوعات الأتية :
Contents
Preface xi
Acknowledgements xii
1 General health
and safety (engineering)
1.1 Health, safety and the law 1
1.2 Employers’ responsibilities 3
1.3 Employees’ responsibilities 5
1.4 Electrical hazards 6
1.5 Fire fighting 7
1.6 Fire precautions and prevention 10
1.7 Accidents 11
1.8 First aid 14
1.9 Personal protection 16
1.10 Hazards in the workplace 20
1.11 Manual lifting 25
1.12 Mechanical lifting equipment 27
1.13 Use of lifting equipment 27
1.14 Accessories for lifting gear 28
1.15 Useful knots for fibre ropes 31
1.16 Transporting loads (trucks) 32
1.17 Inspection (lifting equipment) 33
Exercises 34
2 Establishing effective working relationships
2.1 Basic relationships 38
2.2 Relationships with managers, supervisors
and instructors 40
2.3 Attitude and behaviour 42
2.4 Implementing company policy 43
2.5 Creating and maintaining effective working
relationships with other people 46
Exercises 47
3 Handling engineering information
3.1 Selection of information sources 50
3.2 Interpretation of information (graphical) 51
3.3 Interpretation of information (tables,
charts and schedules) 54
3.4 Evaluating engineering information 57
3.5 Recording and processing engineering information 58
3.6 Methods of record keeping 59
3.7 Communications (miscellaneous) 60
Exercises 63vi Contents
4 Engineering materials and
heat treatment
4.1 States of matter 65
4.2 Properties of materials 66
4.3 Classification of materials 73
4.4 Ferrous metals (plain carbon steels) 73
4.5 Ferrous metals (alloy steels) 76
4.6 Ferrous metals (cast irons) 79
4.7 Abbreviations 79
4.8 British standards for wrought steels 80
4.9 Non-ferrous metals and alloys 81
4.10 Workshop tests for the identification of metals 87
4.11 Non-metals (natural) 87
4.12 Non-metals (synthetic) 89
4.13 Forms of supply 92
4.14 Heat treatment processes (introduction) 94
4.15 Heat treatment processes (safety) 94
4.16 The heat treatment of plain carbon steels 97
4.17 The heat treatment of non-ferrous metals and alloys 109
4.18 Heat treatment furnaces 110
4.19 Temperature measurement 115
4.20 Atmosphere control 118
Exercises 119
5 Engineering drawing 5.1 Engineering drawing (introduction) 123
5.2 First angle orthographic drawing 124
5.3 Third angle orthographic drawing 127
5.4 Conventions 129
5.5 Redundant views 133
5.6 Dimensioning 134
5.7 Toleranced dimensions 137
5.8 Sectioning 138
5.9 Machining symbols 140
5.10 Types of engineering drawings 141
5.11 Pictorial views 144
5.12 Sketching 147
Exercises 149
6 Measuring 6.1 Introduction 155
6.2 Linear measurement 155
6.3 Measuring angles 170
6.4 Miscellaneous measurements 175
6.5 Limits and fits 177
6.6 Classes of fit 179
6.7 Accuracy 180
6.8 Terminology of measurement 183
Exercises 184
Answers 186Contents vii
7 Marking out 7.1 Marking-out equipment (tools for making lines) 188
7.2 Marking-out equipment (tools for providing guidance) 194
7.3 Marking-out equipment (tools for providing support) 196
7.4 The purposes, advantages and disadvantages
of manual marking out 200
7.5 Types of datum 201
7.6 Techniques for marking out 203
Exercises 215
8 Basic bench fitting 8.1 Relative merits and disadvantages of using hand tools 218
8.2 The fitter’s bench 219
8.3 The metal cutting wedge 220
8.4 The angles of a wedge-shaped cutting tool
and their terminology 221
8.5 The application of the basic cutting angles
to hand tools 223
8.6 Chipping 224
8.7 Hammers 226
8.8 Filing 227
8.9 The hacksaw 231
8.10 Screw thread applications 233
8.11 Cutting internal screw threads (use of taps) 236
8.12 Cutting external screw threads (use of dies) 239
8.13 Hand reamers and reaming 241
8.14 Tools used in assembly and dismantling 242
8.15 Preparation of hand tools 248
8.16 Making a link 249
8.17 Checking the link 252
Exercises 253
9 Drilling techniques
and drilling machines
9.1 The twist drill 257
9.2 Twist drill cutting angles 259
9.3 Twist drill cutting speeds and feeds 260
9.4 Twist drill failures and faults 263
9.5 Blind hole drilling 265
9.6 Reamers and reaming 266
9.7 Miscellaneous operations 268
9.8 Toolholding 270
9.9 Workholding 272
9.10 The basic alignments of drilling machines 275
9.11 The bench (sensitive) drilling machine 276
9.12 The pillar drilling machine 277
Exercises 278
10 Centre lathe and turning
techniques
10.1 The safe use of machine tools 281
10.2 Constructional features of the centre lathe 285viii Contents
10.3 Main movements and alignments 289
10.4 Types of spindle nose 292
10.5 Starting up and closing down the machine 294
10.6 Workholding devices (centres) 295
10.7 Workholding devices (taper mandrel) 298
10.8 Workholding devices (self-centring chuck) 300
10.9 Workholding devices (collets) 302
10.10 Workholding devices (four-jaw, independent chuck) 303
10.11 Workholding devices (faceplate) 306
10.12 Use of steadies 307
10.13 Lathe tool profiles 309
10.14 Concentricity 309
10.15 Taper turning 310
10.16 Hole production 312
10.17 Parting off 315
10.18 Cutting screw threads 316
10.19 Knurling 318
10.20 Chip formation and the geometry of lathe tools 318
10.21 Cutting lubricants and coolants 322
10.22 Tool height 323
10.23 Relationship between depth of cut and feed rates
as applied to turning operations 325
10.24 Cutting speeds as applied to turning operations 328
10.25 The production of some typical turned components 330
Exercises 335
11 Milling machines
and milling techniques
11.1 Safety 342
11.2 The milling process 343
11.3 The horizontal spindle milling machine 346
11.4 The vertical spindle milling machine 347
11.5 Types of milling cutters and their applications 350
11.6 Cutter mounting (horizontal milling machine) 352
11.7 Cutter mounting (vertical milling machine) 355
11.8 Workholding 357
11.9 Cutting speeds and feeds 362
11.10 Squaring up a blank on a horizontal milling machine 365
11.11 Milling a step (horizontal milling machine) 367
11.12 Milling a step (vertical milling machine) 368
11.13 Milling a slot (horizontal milling machine) 368
11.14 Milling an angular surface 369
Exercises 371
12 Grinding machines
and processes
12.1 Safety when grinding 376
12.2 Fundamental principles of grinding 379
12.3 Grinding wheel specification 380
12.4 Grinding wheel selection 384
12.5 Grinding wheel defects 385Contents ix
12.6 Grinding wheel dressing and truing 386
12.7 Grinding wheel balancing 387
12.8 The double-ended off-hand grinding machine 389
12.9 Resharpening hand tools and single point cutting tools 392
12.10 Surface grinding machine 393
12.11 Workholding 395
12.12 Mounting a magnetic chuck on the worktable 398
12.13 Grinding a flat surface 400
Exercises 402
Index 405
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