TABLE OF CONTENTS
Abstract II
Sommario III
Acknowledgment IV
Table of contents V
1. Introduction pp. 1 1.1 - Current situation in Abrasive Water Jet machining
1.2 - Definition of the problem 1.3 – Organization of the thesis
2. Background of Abrasive Water Jet Cutting pp.4 2.1 - Water jet cutting and Abrasive Water jet Cutting
2.2 - Applications of the technology 2.3 - Components of an AWJC system
2.4 - Comparison with other cutting techniques 2.5 - Cutting principle of Abrasive Water jet
2.6 - Process parameters of Abrasive Water Jet Cutting 2.7 - Abrasives for Abrasive Water Jet Cutting
2.8 - GMA garnet abrasive
3. State of the art in Abrasive Recycling pp.31 3.1 - Introduction
3.2 - Research on particle fragmentation 3.3 - Research on abrasive recycling 3.4 - Recycling systems from Wardjet®
3.5 - Recycling systems from Jet Edge®
4. Cost Analysis pp.49 4.1 - Introduction
4.2 - Cost analysis for abrasive recycling 4.2.1 Recycling Machine hourly cost 4.2.2 Wages hourly cost
4.2.3 Variable hourly costs 4.2.4 Abrasive Recharging 4.2.5 Cost of recycled abrasive 4.2.6 Cost of recharged abrasive
4.3 - Cost analysis for Abrasive Water Jet Cutting 4.3.1 Cost Model
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4.3.2 Specific cutting cost 4.3.3 Recycling comparison 4.3.4 Results and discussion
4.3.4.1 AWJC specific cost
4.3.4.2 Influence of abrasive cost on AWJC cost 4.3.4.3 Influence of set-up costs
5. Project definition pp.69 5.1 - Definition of objectives
5.2 - Abrasive Water Jet Cutting set-up at TU Delft
6. Reusability of GMA garnet abrasive pp.77 6.1 - Introduction to particle size analysis
6.1.1 Particle Shape 6.1.2 Particle Size
6.1.3 Methods of measurement 6.1.4 Sieving Analysis
6.1.4.1 Basic principles of sieve analysis 6.1.4.2 Evaluation of sieve analysis results 6.2 - Experiment Set-Up
6.2.1 Introduction 6.2.2 Cutting parameters 6.2.3 Abrasive catcher 6.2.4 Cutting path 6.2.5 Microscope
6.3 - Abrasive recycling process 6.3.1 Introduction
6.3.2 Abrasive collection 6.3.3 Abrasive Washing 6.3.4 Abrasive Drying 6.3.5 Metal Separation 6.3.6 Sieving Analysis 6.4 - Reusability after I cut
6.5 - Multiple recycling investigation 6.5.1 Recharged abrasive 6.5.2 Recycled abrasive
6.6 - Fragmentation of abrasive after cutting 6.6.1 Recharged abrasive
6.6.2 Recycled abrasive
7. Cutting Performance of abrasive samples pp.118 7.1 - Experiment set-up
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7.2 - Performance of recharged samples 7.3 - Performance of recycled samples 7.4 - Multiple recycling performance
7.4.1 Recharged Samples 7.4.2 Recycled Samples
8. Cutting Quality of abrasive samples pp.126 8.1 - Introduction
8.2 - Experiment set-up
8.3 - Roughness of recharged samples 8.4 - Roughness of recycled samples
9. Cost calculation for GMA garnet recycling pp.136 9.1 - Comparison of abrasive samples
9.2 - Results achievable in industrial application
10. Conclusions and Suggestions pp.143
References pp.146
Appendix
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