Metal forming: mechanics and metallurgy
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Cambridge [u.a.]
Cambridge Univ. Press
2011
|
| Ausgabe: | 4. ed., 1. publ. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Includes bibliographical references and index Includes bibliographical references and index |
| Beschreibung: | XII, 331 S. Ill., graph. Darst. |
| ISBN: | 9781107004528 |
Internformat
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| 100 | 1 | |a Hosford, William F. |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Metal forming |b mechanics and metallurgy |c William F. Hosford ; Robert M. Caddell |
| 250 | |a 4. ed., 1. publ. | ||
| 264 | 1 | |a Cambridge [u.a.] |b Cambridge Univ. Press |c 2011 | |
| 300 | |a XII, 331 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 500 | |a Includes bibliographical references and index | ||
| 500 | |a Includes bibliographical references and index | ||
| 650 | 4 | |a Metal-work | |
| 650 | 4 | |a Deformations (Mechanics) | |
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Datensatz im Suchindex
| _version_ | 1804148921504628736 |
|---|---|
| adam_text | Titel: Metal forming
Autor: Hosford, William F
Jahr: 2011
Contents
Preface to the Fourth Edition page xii
1 Stress and Strain......................................................................1
1.1 Stress 1
1.2 Stress transformation 2
1.3 Principal stresses 4
1.4 Mohr s circle equations 5
1.5 Strain 7
1.6 Small strains 9
1.7 The strain tensor 10
1.8 Isotropic elasticity 10
1.9 Strain energy 11
1.10 Force and moment balances 12
1.11 Boundary conditions 13
NOTES OF INTEREST............................................................................................14
REFERENCES........................................................................................................15
APPENDIX-EQUILIBRIUM EQUATIONS..............................................................15
PROBLEMS..........................................................................................................15
2 Plasticity..........................................................................................17
2.1 Yield criteria 17
2.2 Tresca criterion 18
2.3 Von Mises criterion 20
2.4 Effective stress 21
2.5 Effective strain 22
2.6 Flow rules 23
2.7 Normality principle 24
2.8 Derivation of the von Mises effective strain 26
NOTES OF INTEREST..............................................27
V
Vi CONTENTS
REFERENCES........................................................................................................28
PROBLEMS..........................................................................................................28
3 Strain Hardening.......................................30
3.1 The tension test 30
3.2 Elastic-plastic transition 32
3.3 Engineering vs. true stress and strain 32
3.4 Power-law expression 34
3.5 Other strain-hardening approximations 36
3.6 Behavior during necking 36
3.7 Compression testing 38
3.8 Bulge testing 38
3.9 Plane-strain compression 39
3.10 Torsion testing 40
NOTE OF INTEREST............................................................................................40
REFERENCES....................................................41
PROBLEMS..........................................................................................................41
4 Plastic Instability..............................................................................43
4.1 Uniaxial tension 43
4.2 Effect of inhomogeneities 44
4.3 Balanced biaxial tension 45
4.4 Pressurized thin-wall sphere 47
4.5 Significance of instability 48
NOTE OF INTEREST............................................................................................49
REFERENCES....................................................49
PROBLEMS..........................................................................................................49
5 Temperature and Strain-Rate Dependence..........................................52
5.1 Strain rate 52
5.2 Superplasticity 55
5.3 Effect of inhomogeneities 58
5.4 Combined strain and strain-rate effects 62
5.5 Alternative description of strain-rate dependence 63
5.6 Temperature dependence of flow stress 65
5.7 Deformation mechanism maps 69
5.8 Hot working 69
5.9 Temperature rise during deformation 71
NOTES OF INTEREST..............................................72
REFERENCES....................................................73
PROBLEMS..........................................................................................................73
6 Work Balance..................................................................................76
6.1 Ideal work 76
CONTENTS
vii
6.2 Extrusion and drawing 77
6.3 Deformation efficiency 78
6.4 Maximum drawing reduction 79
6.5 Effects of die angle and reduction 80
6.6 Swaging 81
REFERENCES....................................................82
PROBLEMS..................................................... 82
7 Slab Analysis..........................................85
7.1 Sheet drawing 85
7.2 Wire and rod drawing 87
7.3 Friction in plane-strain compression 88
7.4 Sticking friction 90
7.5 Mixed sticking-sliding conditions 90
7.6 Constant shear stress interface 91
7.7 Axially symmetric compression 92
7.8 Sand-pile analogy 93
7.9 Flat rolling 93
7.10 Roll flattening 95
7.11 Roll bending 99
7.12 Coining 101
7.13 Reducing the area of contact 101
NOTES OF INTEREST..............................................102
REFERENCES....................................................102
PROBLEMS.....................................................102
8 Friction and Lubrication..................................106
8.1 General 106
8.2 Experimental findings 109
8.3 Ring friction test 110
8.4 Galling 111
8.5 Ultrasonics 111
NOTE OF INTEREST..............................................Ill
REFERENCES....................................................112
PROBLEMS.....................................................112
9 Upper-Bound Analysis...................................113
9.1 Upper bounds 113
9.2 Energy dissipation on plane of shear 114
9.3 Plane-strain frictionless extrusion 115
9.4 Plane-strain frictionless indentation 119
9.5 Plane-strain compression 119
9.6 Another approach to upper bounds 122
9.7 A combined upper-bound analysis 123
9.8 Plane-strain drawing 124
viii
CONTENTS
9.9 Axisymmetric drawing 124
REFERENCES....................................................126
PROBLEMS.....................................................126
10 Slip-Line Field Analysis..................................132
10.1 Introduction 132
10.2 Governing stress equations 132
10.3 Boundary conditions 136
10.4 Plane-strain indentation 137
10.5 Hodographs for slip-line fields 138
10.6 Plane-strain extrusion 139
10.7 Energy dissipation in a slip-line field 141
10.8 Metal distortion 141
10.9 Indentation of thick slabs 142
10.10 Plane-strain drawing 146
10.11 Constant shear stress interfaces 150
10.12 Pipe formation 151
NOTES OF INTEREST..............................................152
REFERENCES....................................................154
APPENDIX......................................................154
PROBLEMS.....................................................157
11 Deformation-Zone Geometry...............................167
11.1 The A parameter 167
11.2 Friction 168
11.3 Redundant deformation 168
11.4 Inhomogeneity 170
11.5 Internal damage 175
11.6 Residual stresses 179
11.7 Comparison of plane-strain and axisymmetric deformation 182
NOTE OF INTEREST..............................................184
REFERENCES....................................................184
PROBLEMS.....................................................184
12 Formability...........................................186
12.1 Ductility 186
12.2 Metallurgy 186
12.3 Ductile fracture 190
12.4 Hydrostatic stress 191
12.5 Bulk formability tests 195
12.6 Formability in hot working 196
NOTE OF INTEREST..............................................197
REFERENCES....................................................197
PROBLEMS.....................................................197
CONTENTS
ix
13 Bending.............................................199
13.1 Sheet bending 199
13.2 Bending with super-imposed tension 202
13.3 Young s modulus on unloading 204
13.4 Reducing springback 204
13.5 Neutral axis shift 204
13.6 Bendability 206
13.7 Shape bending 207
13.8 Forming limits in bending 208
NOTE OF INTEREST..............................................209
REFERENCES....................................................209
PROBLEMS.....................................................209
14 Plastic Anisotropy......................................212
14.1 Crystallographic basis 212
14.2 Measurement of R 214
14.3 Hill s anisotropic plasticity theory 214
14.4 Special cases of Hill s yield criterion 216
14.5 Nonquadratic yield criteria 217
14.6 Calculation of anisotropy from crystallographic considerations 220
NOTE OF INTEREST..............................................221
REFERENCES....................................................221
PROBLEMS.....................................................221
15 Cupping, Redrawing, and Ironing...........................225
15.1 Cup drawing 225
15.2 Anisotropy effects in drawing 228
15.3 Effects of strain hardening in drawing 229
15.4 Analysis of assumptions 230
15.5 Effects of tooling on cup drawing 232
15.6 Earing 233
15.7 Redrawing 235
15.8 Ironing 236
15.9 Progressive forming 238
15.10 Tapered dies 238
15.11 Drawing boxes 240
15.12 Residual stresses 241
NOTES OF INTEREST..............................................242
REFERENCES....................................................242
PROBLEMS.....................................................242
16 Forming Limit Diagrams..................................245
16.1 Localized necking 245
16.2 Forming limit diagrams 249
X CONTENTS
16.3 Experimental determination of FLDs 250
16.4 Calculation of forming limit diagrams 252
16.5 Factors affecting forming limits 255
16.6 Changing strain paths 258
16.7 Stress-based forming limits 260
NOTE OF INTEREST..............................................260
REFERENCES....................................................261
PROBLEMS.....................................................261
17 Stamping............................................263
17.1 Stamping 263
17.2 Draw beads 263
17.3 Strain distribution 265
17.4 Loose metal and wrinkling 266
17.5 Springback 268
17.6 Strain signatures 269
17.7 Die design 270
17.8 Toughness and sheet tearing 272
17.9 General observations 274
NOTES OF INTEREST..............................................275
REFERENCES....................................................275
PROBLEMS.....................................................275
18 Hydroforming.........................................277
18.1 General 277
18.2 Free expansion of tubes 277
18.3 Hydroforming into square cross sections 279
18.4 Bent sections 281
NOTE OF INTEREST..............................................283
REFERENCES....................................................283
PROBLEMS.....................................................283
19 Other Sheet Forming Operations............................285
19.1 Roll forming 285
19.2 Spinning 286
19.3 Foldable shapes 288
19.4 Incremental sheet forming 288
19.5 Shearing 290
19.6 Flanging, hole expansion, and beading 291
19.7 Hemming 292
NOTE OF INTEREST..............................................293
REFERENCES....................................................293
PROBLEMS.....................................................293
CONTENTS Xi
20 Formability Tests.......................................294
20.1 Cupping tests 294
20.2 LDH test 294
20.3 Post-uniform elongation 297
20.4 OSU formability test 297
20.5 Hole expansion 298
20.6 Hydraulic bulge test 299
20.7 Duncan friction test 300
REFERENCES....................................................301
PROBLEMS.....................................................301
21 Sheet Metal Properties...................................304
21.1 Introduction 304
21.2 Surface appearance 305
21.3 Strain aging 305
21.4 Roller leveling and temper rolling 308
21.5 Properties of steels 309
21.6 Grades of low-carbon steel 309
21.7 Tailor-welded blanks 314
21.8 Special sheet steels 315
21.9 Surface treatment 315
21.10 Stainless steels 316
21.11 Aluminum alloys 317
21.12 Copper and brass 321
21.13 Hexagonal close-packed metals 322
21.14 Tooling 323
21.15 Product uniformity 323
21.16 Scrap 324
NOTES OF INTEREST..............................................324
REFERENCES....................................................325
PROBLEMS.....................................................325
Index
327
|
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| dewey-sort | 3671.3 |
| dewey-tens | 670 - Manufacturing |
| discipline | Werkstoffwissenschaften / Fertigungstechnik |
| edition | 4. ed., 1. publ. |
| format | Book |
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| spelling | Hosford, William F. Verfasser aut Metal forming mechanics and metallurgy William F. Hosford ; Robert M. Caddell 4. ed., 1. publ. Cambridge [u.a.] Cambridge Univ. Press 2011 XII, 331 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Includes bibliographical references and index Metal-work Deformations (Mechanics) Umformen (DE-588)4061585-6 gnd rswk-swf 1\p (DE-588)4151278-9 Einführung gnd-content Umformen (DE-588)4061585-6 s DE-604 Caddell, Robert M. Sonstige oth HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024808618&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
| spellingShingle | Hosford, William F. Metal forming mechanics and metallurgy Metal-work Deformations (Mechanics) Umformen (DE-588)4061585-6 gnd |
| subject_GND | (DE-588)4061585-6 (DE-588)4151278-9 |
| title | Metal forming mechanics and metallurgy |
| title_auth | Metal forming mechanics and metallurgy |
| title_exact_search | Metal forming mechanics and metallurgy |
| title_full | Metal forming mechanics and metallurgy William F. Hosford ; Robert M. Caddell |
| title_fullStr | Metal forming mechanics and metallurgy William F. Hosford ; Robert M. Caddell |
| title_full_unstemmed | Metal forming mechanics and metallurgy William F. Hosford ; Robert M. Caddell |
| title_short | Metal forming |
| title_sort | metal forming mechanics and metallurgy |
| title_sub | mechanics and metallurgy |
| topic | Metal-work Deformations (Mechanics) Umformen (DE-588)4061585-6 gnd |
| topic_facet | Metal-work Deformations (Mechanics) Umformen Einführung |
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