Development and evaluation of ultra high pressure waterjet cutting:
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2008
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XX, 151 S. Ill., graph. Darst. |
| ISBN: | 9789090230757 |
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| adam_text | DEVELOPMENT AND EVALUATION OF ULTRA HIGH PRESSURE WATERJET CUTTING
PROEFSCHRIFT TER VERKRIJGING VAN DE GRAAD VAN DOCTOR AAN DE TECHNISCHE
UNIVERSITEIT DELFT, OP GEZAG VAN DE RECTOR MAGNIFICUS PROF. DR. IR. J.T.
FOKKEMA, VOORZITTER VAN HET COLLEGE VOOR PROMOTIES, IN HET OPENBAAR TE
VERDEDIGEN OP MAANDAG 19 MEI 2008 OM 12.30 UUR DOOR TOLGA SUSUZLU
MECHANICAL ENGINEERING, MIDDLE EAST TECHNICAL UNIVERSITY, TURKIJE
GEBOREN TE ANKARA, TURKIJE. CONTENTS ACKNOWLEDGEMENTS I SUMMARY V
SAMENVATTING VII CONTENTS XI NOMENCLATURES XV 1. INTRODUCTION 1 2. STATE
OF THE ART ABRASIVE WATERJET CUTTING 5 2.1. HISTORY OF WATERJET CUTTING
. 5 2.2. THE COMPONENTS OF ABRASIVE WATERJET SYSTEM 7 2.2.1. PRESSURE
GENERATION SYSTEM 7 2.2.2. JET FORMER 8 2.3. PROPERTIES OF WATER AT HIGH
PRESSURES 10 2.3.1. COMPRESSIBILITY OF WATER 10 2.3.2. VISCOSITY OF
WATER 11 2.3.3. PHASE DIAGRAM OF WATER 11 2.3.4. ADIABATIC HEATING 14
2.4. STRUCTURE OF THE WATERJET 15 2.5. EROSION OF THE MATERIALS 16 2.6.
MODELLING OF THE CUTTING PROCESS 18 2.7. CUTTING TESTS ABOVE 400 MPA 19
3. PROJECT DEFINITION 23 3.1. AIM OF THE INVESTIGATIONS 24 3.2.
STRUCTURE OF THE THESIS 22 4. EXPERIMENTS: METHODS AND EQUIPMENTS 27
4.1. ABRASIVE WATERJET CUTTING SET-UP 27 4.2. ABRASIVE PARTICLES 29 XI
4.3. MEASUREMENT OF WATER PRESSURE 31 4.4. INDIRECT PARTICLE VELOCITY
MEASUREMENT 31 4.5. PLAIN AND ABRASIVE WATERJET CUTTING EXPERIMENTS 33
4.5.1. MATERIALS 33 4.5.2. CUTTING EXPERIMENTS 34 4.6. OTHER MEASUREMENT
EQUIPMENT 35 5. DEVELOPMENTS OF AN ULTRA HIGH PRESSURE AWJ CUTTING
SYSTEM 37 5.1. DESIGN OF HIGH PRESSURE COMPONENTS 37 5.1.1. INTRODUCTION
37 5.1.2. ELASTIC STATE 39 5.1.3. PLASTIC ANALYSIS 43 5.1.4. RESIDUAL
STRESSES 48 5.1.5. SHAKEDOWN, ALTERNATING PLASTICITY AND RATCHETING 50
5.1.6. PRESSURE ENHANCING METHODS 51 5.1.7. FATIGUE 55- 5.2. MODELLING
OF PRESSURE FLUCTUATIONS 56 5.2.1. INTRODUCTION 56 5.2.2. A MATHEMATICAL
METHOD FOR PRESSURE FLUCTUATIONS 57 5.2.3. HIGH PRESSURE CYLINDER AND
ATTENUATOR DESIGN FOR HIGH PRESSURE 60 APPLICATIONS 5.2.4. VERIFICATION
OF THE MATHEMATICAL MODEL 63 5.3. CONCLUSIONS 65 6. ENERGY EFFICIENCY OF
AWJ PROCESS 67 6.1. WATERJET FORMATION 67 6.2. ENERGY DENSITY OF THE
PLAIN WATERJET 70 6.3. MIXING PROCESS 71 6.4. ENERGY DENSITY OF THE
ABRASIVE WATERJET 76 6.5. CONCLUSIONS 78 7. PLAIN WATERJET CUTTING 79
7.1. JET STRUCTURE 79 XII 7.1.1. INTRODUCTION 79 7.1.2. EFFECTS OF
UPSTREAM TUBE 79 7.1.3. EFFECTS OF ORIFICE AND WATER PRESSURE 83 7.2.
COEFFICIENT OF DISCHARGE 90 7.3. VELOCITY AND POWER OF PLAIN WATERJET 91
7.4. EVALUATION OF CUTTING PERFORMANCE 93 7.4.1. CUTTING PERFORMANCE
CRITERIA 93 7.4.2. CUTTING PERFORMANCE IN TERMS OF MAXIMUM CUTTING SPEED
95 7.4.3. CUTTING PERFORMANCE IN TERMS OF DEPTH OF CUT 97 7.5. MODELLING
OF PLAIN WATERJET BASED ON ENERGY DENSITY 99 7.6. COMPARISON OF THE
MODELS 100 7.7. QUALITY OF THE CUT 101 7.8. CONCLUSIONS 104 8. ABRASIVE
WATERJET CUTTING 107 8.1. PLAIN WATERJET VELOCITY AFTER JET FORMER 107
-8.2. ABRASIVE PARTICLE VELOCITY 109 8.3. MOMENTUM AND POWER TRANSFER
EFFICIENCIES 110 8.4. BENEFITS OF THE MINIATURIZATION OF AWJ PROCESS 116
8.5. OPTIMUM CUTTING CONDITIONS FOR AWJ CUTTING AT ULTRA HIGH PRESSURES
117 8.5.1. OPTIMUM JET FORMER CONFIGURATION 117 8.5.2. OPTIMUM ABRASIVE
LOAD RATIO 119 8.5.3. MAXIMUM DEPTH OF CUT 121 8.6. RELATION BETWEEN THE
ENERGY DENSITY OF THE JET AND DEPTH OF CUT 121 8.7. ECONOMICAL ASPECTS
OF ULTRA HIGH PRESSURE ABRASIVE WATERJET CUTTING 122 8.8. SURFACE
QUALITY 128 8.9. CONCLUSIONS 130 9. FINAL CONCLUSIONS AND
RECOMMENDATIONS 133 REFERENCES 135 ABOUT THE AUTHOR 151 XIII
|
| adam_txt |
DEVELOPMENT AND EVALUATION OF ULTRA HIGH PRESSURE WATERJET CUTTING
PROEFSCHRIFT TER VERKRIJGING VAN DE GRAAD VAN DOCTOR AAN DE TECHNISCHE
UNIVERSITEIT DELFT, OP GEZAG VAN DE RECTOR MAGNIFICUS PROF. DR. IR. J.T.
FOKKEMA, VOORZITTER VAN HET COLLEGE VOOR PROMOTIES, IN HET OPENBAAR TE
VERDEDIGEN OP MAANDAG 19 MEI 2008 OM 12.30 UUR DOOR TOLGA SUSUZLU
MECHANICAL ENGINEERING, MIDDLE EAST TECHNICAL UNIVERSITY, TURKIJE
GEBOREN TE ANKARA, TURKIJE. CONTENTS ACKNOWLEDGEMENTS I SUMMARY V
SAMENVATTING VII CONTENTS XI NOMENCLATURES XV 1. INTRODUCTION 1 2. STATE
OF THE ART ABRASIVE WATERJET CUTTING 5 2.1. HISTORY OF WATERJET CUTTING
. 5 2.2. THE COMPONENTS OF ABRASIVE WATERJET SYSTEM 7 2.2.1. PRESSURE
GENERATION SYSTEM 7 2.2.2. JET FORMER 8 2.3. PROPERTIES OF WATER AT HIGH
PRESSURES 10 2.3.1. COMPRESSIBILITY OF WATER 10 2.3.2. VISCOSITY OF
WATER 11 2.3.3. PHASE DIAGRAM OF WATER 11 2.3.4. ADIABATIC HEATING 14
2.4. STRUCTURE OF THE WATERJET 15 2.5. EROSION OF THE MATERIALS 16 2.6.
MODELLING OF THE CUTTING PROCESS 18 2.7. CUTTING TESTS ABOVE 400 MPA 19
3. PROJECT DEFINITION 23 3.1. AIM OF THE INVESTIGATIONS 24 3.2.
STRUCTURE OF THE THESIS 22 4. EXPERIMENTS: METHODS AND EQUIPMENTS 27
4.1. ABRASIVE WATERJET CUTTING SET-UP 27 4.2. ABRASIVE PARTICLES 29 XI
4.3. MEASUREMENT OF WATER PRESSURE 31 4.4. INDIRECT PARTICLE VELOCITY
MEASUREMENT 31 4.5. PLAIN AND ABRASIVE WATERJET CUTTING EXPERIMENTS 33
4.5.1. MATERIALS 33 4.5.2. CUTTING EXPERIMENTS 34 4.6. OTHER MEASUREMENT
EQUIPMENT 35 5. DEVELOPMENTS OF AN ULTRA HIGH PRESSURE AWJ CUTTING
SYSTEM 37 5.1. DESIGN OF HIGH PRESSURE COMPONENTS 37 5.1.1. INTRODUCTION
37 5.1.2. ELASTIC STATE 39 5.1.3. PLASTIC ANALYSIS 43 5.1.4. RESIDUAL
STRESSES 48 5.1.5. SHAKEDOWN, ALTERNATING PLASTICITY AND RATCHETING 50
5.1.6. PRESSURE ENHANCING METHODS 51 5.1.7. FATIGUE 55- 5.2. MODELLING
OF PRESSURE FLUCTUATIONS 56 5.2.1. INTRODUCTION 56 5.2.2. A MATHEMATICAL
METHOD FOR PRESSURE FLUCTUATIONS 57 5.2.3. HIGH PRESSURE CYLINDER AND
ATTENUATOR DESIGN FOR HIGH PRESSURE 60 APPLICATIONS 5.2.4. VERIFICATION
OF THE MATHEMATICAL MODEL 63 5.3. CONCLUSIONS 65 6. ENERGY EFFICIENCY OF
AWJ PROCESS 67 6.1. WATERJET FORMATION 67 6.2. ENERGY DENSITY OF THE
PLAIN WATERJET 70 6.3. MIXING PROCESS 71 6.4. ENERGY DENSITY OF THE
ABRASIVE WATERJET 76 6.5. CONCLUSIONS 78 7. PLAIN WATERJET CUTTING 79
7.1. JET STRUCTURE 79 XII 7.1.1. INTRODUCTION 79 7.1.2. EFFECTS OF
UPSTREAM TUBE 79 7.1.3. EFFECTS OF ORIFICE AND WATER PRESSURE 83 7.2.
COEFFICIENT OF DISCHARGE 90 7.3. VELOCITY AND POWER OF PLAIN WATERJET 91
7.4. EVALUATION OF CUTTING PERFORMANCE 93 7.4.1. CUTTING PERFORMANCE
CRITERIA 93 7.4.2. CUTTING PERFORMANCE IN TERMS OF MAXIMUM CUTTING SPEED
95 7.4.3. CUTTING PERFORMANCE IN TERMS OF DEPTH OF CUT 97 7.5. MODELLING
OF PLAIN WATERJET BASED ON ENERGY DENSITY 99 7.6. COMPARISON OF THE
MODELS 100 7.7. QUALITY OF THE CUT 101 7.8. CONCLUSIONS 104 8. ABRASIVE
WATERJET CUTTING 107 8.1. PLAIN WATERJET VELOCITY AFTER JET FORMER 107
-8.2. ABRASIVE PARTICLE VELOCITY 109 8.3. MOMENTUM AND POWER TRANSFER
EFFICIENCIES 110 8.4. BENEFITS OF THE MINIATURIZATION OF AWJ PROCESS 116
8.5. OPTIMUM CUTTING CONDITIONS FOR AWJ CUTTING AT ULTRA HIGH PRESSURES
117 8.5.1. OPTIMUM JET FORMER CONFIGURATION 117 8.5.2. OPTIMUM ABRASIVE
LOAD RATIO 119 8.5.3. MAXIMUM DEPTH OF CUT 121 8.6. RELATION BETWEEN THE
ENERGY DENSITY OF THE JET AND DEPTH OF CUT 121 8.7. ECONOMICAL ASPECTS
OF ULTRA HIGH PRESSURE ABRASIVE WATERJET CUTTING 122 8.8. SURFACE
QUALITY 128 8.9. CONCLUSIONS 130 9. FINAL CONCLUSIONS AND
RECOMMENDATIONS 133 REFERENCES 135 ABOUT THE AUTHOR 151 XIII |
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| spelling | Susuzlu, Tolga Verfasser aut Development and evaluation of ultra high pressure waterjet cutting Tolga Susuzlu 2008 XX, 151 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Delft, Techn. Univ., Diss., 2008 Hochdruck-Abrasivstrahlen (DE-588)4245877-8 gnd rswk-swf Weiterentwicklung (DE-588)4461767-7 gnd rswk-swf Evaluation (DE-588)4071034-8 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Hochdruck-Abrasivstrahlen (DE-588)4245877-8 s Weiterentwicklung (DE-588)4461767-7 s DE-604 Evaluation (DE-588)4071034-8 s HEBIS Datenaustausch Darmstadt application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016765702&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Susuzlu, Tolga Development and evaluation of ultra high pressure waterjet cutting Hochdruck-Abrasivstrahlen (DE-588)4245877-8 gnd Weiterentwicklung (DE-588)4461767-7 gnd Evaluation (DE-588)4071034-8 gnd |
| subject_GND | (DE-588)4245877-8 (DE-588)4461767-7 (DE-588)4071034-8 (DE-588)4113937-9 |
| title | Development and evaluation of ultra high pressure waterjet cutting |
| title_auth | Development and evaluation of ultra high pressure waterjet cutting |
| title_exact_search | Development and evaluation of ultra high pressure waterjet cutting |
| title_exact_search_txtP | Development and evaluation of ultra high pressure waterjet cutting |
| title_full | Development and evaluation of ultra high pressure waterjet cutting Tolga Susuzlu |
| title_fullStr | Development and evaluation of ultra high pressure waterjet cutting Tolga Susuzlu |
| title_full_unstemmed | Development and evaluation of ultra high pressure waterjet cutting Tolga Susuzlu |
| title_short | Development and evaluation of ultra high pressure waterjet cutting |
| title_sort | development and evaluation of ultra high pressure waterjet cutting |
| topic | Hochdruck-Abrasivstrahlen (DE-588)4245877-8 gnd Weiterentwicklung (DE-588)4461767-7 gnd Evaluation (DE-588)4071034-8 gnd |
| topic_facet | Hochdruck-Abrasivstrahlen Weiterentwicklung Evaluation Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016765702&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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