INTRODUCTION 1 LITERATURE REVIEW 5 RESEARCH METHODOLOGY 2 4 RESULTS AND DISCUSSION 4 3

v TABLE OF CONTENT Abstract i Abstrak i i Dedication iii Acknowledgement i v Table of Content v List of Tables i x List of Figures x List Abbreviations xii

1. INTRODUCTION 1

1.1 Introduction

1 1.2 Problem statement 3

1.3 Objective

3 1.4 Scope 3

1.5 Importance of study

4 1.6 Result expected 4

2. LITERATURE REVIEW 5

2.1 Turning Process

5 2.2 Parameters 6 2.2.1 Cutting Speed 7 2.2.2 Feed Rate 8 2.2.3 Depth of Cut 8 2.3 Aluminum alloy 6063 9 2.4 Cutting Tool Material 9 2.5 Responses of Turning Process 1 1 2.5.1 Surface Roughness 1 2 2.5.2 Surface Texture 1 3 vi 2.5.3 Vickers Hardness Test 1 4 2.6 Design of Experiment 1 6 2.6.1 Response Surface Methodology 1 6 2.6.1.1 Central Composite Design CCD 1 7 2.6.1.1.1 Factorial Points 1 7 2.6.1.1.2 Star or Axial Points 1 8 2.6.1.1.3 Center Points 1 8 2.7 Summary of Journal 1 9 2.8 Conclusion 2 3

3. RESEARCH METHODOLOGY 2 4

3.1 Flow chart of study 2 5 3.2 Stage 1: Define the objective of the experiment 2 6 3.3 Stage 2: Determine the parameters speed at low level and high level 2 6 3.4 Stage 3: Identify the appropriate responds variable 2 7 3.5 Stage 4: Design of experiment matrix 2 7 3.6 Stage 5: Preparation of the experiment 2 8 3.6.1 OKUMA LCS-15 horizontal machines 2 8 3.6.2 Abrasive cutting machine 2 9 3.6.3 Workpiece preparation 3 0 3.6.3.1 Material properties 3 1 3.6.4 Cutting inserts 3 2 3.6.5 Tool Holder 3 3 3.7 Stage 6: Run the experiment 3 3 3.7.1 Surface Roughness Testing 3 5 3.7.2 Cutting Process Cross Section 3 6 3.7.3 Mounting Process 3 7 3.7.4 Hardness Test 3 9 3.8 Stage 7: Analysis the Results 4 0 3.9 Stage 8: Conclusion 4 0 3.10 Gantt chart for PSM 1 4 1 vii 3.11 Gantt chart for PSM 2 4 2

4. RESULTS AND DISCUSSION 4 3

4.1 Results 4 3 4.2 Analysis of Surface Roughness 4 5 4.2.1 Transformation 4 5 4.2.2 Fit Summary 4 6 4.2.2.1 Sequential Model Sum of Squares [Type I] 4 6 4.2.2.2 Lack of Fit Tests 4 8 4.2.2.3 Model Summary Statistics 4 8 4.2.3 ANOVA 4 9 4.2.3.1 Backward Elimination 5 1 4.2.3.2 Regression Statistics 5 2 4.2.4 Model Diagnostics Plots 5 3 4.2.5 Model Graph 5 5 4.2.5.1 Effect of Feed Rate on Surface Roughness 5 5 4.2.5.2 Effect of Cutting Speed on Surface Roughness 5 7 4.2.5.3 Effect of Depth of Cut on Surface Roughness 6 0 4.2.5.4 Perturbation Graph 6 1 4.2.5.5 Effect of Interaction between Cutting Speed and Feed Rate on Surface Roughness 6 2 4.2.5.6 Effect of Interaction between Depth of Cut and Feed Rate on Surface Roughness 6 3 4.2.5.7 Cube Plot 6 4 4.3 Optimization 6 5 4.4 Confirmation Run 6 8 4.4.1 Average Deviation Percentage Value 7 0 4.5 Hardness Test 7 1

5. CONCLUSION AND RECOMMENDATIONS 7 3