Mild Steel Revealing Time 35

CHAPTER CONTENT PAGE CHAPTER III METHODOLOGY 9 3.1 Selection of Penetrant System 12 3.2 Identifying Flaw Entrapment Efficiency Parameter 13 3.3 Design Test Sample and Experiment 14 CHAPTER IV RESULT AND ANALYSIS 35

4.1 Mild Steel Revealing Time 35

4.2 Aluminium Revealing Time 38 4.3 Ultrasonic Testing 40 CHAPTER V DISCUSSION 42 5.1 Artificial Defect 1 43 5.2 Artificial Defect 2 48 5.3 Artificial Defect 3 53 5.4 Artificial Defect 4 58 5.5 Artificial Defect 5 63 5.6 Artificial Defect 6 68 CHAPTER VI CONCLUSION 73 6.1 Conclusion 73 6.2 Recommendation 74 REFERENCES 76 BIBLIOGRAPHY 78 APPENDICES A 79 APPENDICES B 80 APPENDICES C 81 LIST OF TABLES NO TITLE PAGE 4.1 Indication Rate for Mild Steel 36 4.2 Indication Rate for Aluminium 38 5.1 Mild Steel and Aluminium Artificial Defect 1 43 5.2 Mild Steel and Aluminium Artificial Defect 2 48 5.3 Mild Steel and Aluminium Artificial Defect 3 53 5.4 Mild Steel and Aluminium Artificial Defect 4 58 5.5 Mild Steel and Aluminium Artificial Defect 5 63 5.6 Mild Steel and Aluminium Artificial Defect 6 68 viii LIST OF FIGURE NO TITLE PAGE 3.1 Flow Chart for Flaw Entrapment Efficiency Research 11 3.2 Isometric View 15 3.3 Test Specimen Length, Width and Thickness 16 3.4 Artificial Defect 16 3.5 Width between Artificial Defects 17 3.6 Wire-cut EDM Machine 18 3.7 The Coordinate System 20 3.8 CNC Code for Artificial Defect 1 21 3.9 CNC Code for Artificial Defect 2 21 3.10 CNC Code for Artificial Defect 3 21 3.11 CNC Code for Artificial Defect 4 22 3.12 CNC Code for Artificial Defect 5 23 3.13 CNC Code for Artificial Defect 5 23 3.14 Test Specimen – a Mild Steel b Aluminium 24 3.15 Basic PT experimental procedure 25 3.16 Visible Dye Penetrant Sprays - Solvent Cleaner, Dye Penetrant and Developer 30 3.17 Applying Solvent Cleaner 31 3.18 Applying Dye Penetrant 32 3.19 The Penetrant Covered the Test Specimen 32 3.20 Wiping the Excess Penetrant 33 3.21 Applying the Developer 33 ix NO TITLE PAGE 3.22 Examination 34 3.23 Post Cleaning 34 4.1 Graph of Mild Steel Indication Rate versus Time 37 4.2 Graph of Aluminium Indication Rate versus Time 39 4.3 The UT result of the artificial defect 5 40 4.4 The UT result of the artificial defect 6 41 LIST OF SYMBOL PT = Penetrant Testing UT = Ultrasonic Testing NDT = Non-Destructive Testing NDE = Non-Destructive Evaluation RD = Research and Development 3D = 3-Dimension PSM I = Projek Sarjana Muda I mm = Millimetre s = Seconds = Percentage CNC = Computer-Numerical-Control °F = Degree Fahrenheit ASTM = American Standard Testing and Material xi LIST OF APPENDICES NO TITLE PAGE A Gantt Chart for PSM I 79 B Gantt Chart for PSM II 80 C Standard Test Method for Visible Penetrant Examination using the Solvent-Removable Process 81 CHAPTER I INTRODUCTION

1.1 Background