INTRODUCTION 1 LITERATURE REVIEW METHODOLOGY RESULT AND DISCUSSION

TABLE OF CONTENT Abstrak i Abstract ii Dedication iii Acknowledgement iv Table of Content v List of Tables vi List of Figure vii

CHAPTER 1: INTRODUCTION 1

1.1 Research Background

1 1.2 Problem Statement 2

1.3 Research Objective

3 1.4 Research Scope 3

1.5 Research Organization

4

CHAPTER 2: LITERATURE REVIEW

2.1 Cladding Process

5 2.1.1 Principle of Cladding Process 6 2.1.2 Heat Source for Cladding Process 7 2.1.2.1 Laser Cladding 8 2.1.2.2 Plasma Arc Welding 9 2.1.2.3 Gas Tungsten Arc Welding GTAW 10 2.1.2.4 Gas Metal Arc Welding GMAW 11 2.2 Heat Flow in Cladding Process 11 2.2.1 Rosenthal Three Dimensional 3D Heat Flow 12 2.2.2 Heat Input 13 2.2.2.1 Measure the Heat Input 13 2.2.2.2 Main Factor of Heat Input 14 2.2.2.3 Arc Voltage 15 2.2.2.4 Current 15 2.2.2.5 Travel Speed 16 2.2.2.7 Shielding Gas 16 2.2.3 Effect of Cladding to Heat Input 17 2.2.3.1 Weld Pool Geometry 17 2.2.3.2 Protection of the Weld Pool 18 2.2.3.3 Penetration 18 2.2.3.4 Welded Zone Width 18 2.2.3.5 Melting Efficiency 19 2.3 Cast Iron Substrate 20 2.3.1 Types of Cast Iron 21 2.3.1.1 White Cast Iron 21 2.3.1.2 Grey Cast Iron 21 2.3.2 The Clad of Gray Cast Iron 22 2.4 Cladding Consumables 23 2.4.1 Types of Filler Material for Cladding Cast Iron 23 2.4.1.1 Nickel Based Alloy 23 2.4.1.2 Copper Based Alloy 24 2.4.2 Type of Nickel Based Alloy 25 2.4.2.1 Inconel Alloy 625 25 2.4.2.2 Hastelloy C22 26 2.4.2.3 Tungsten Carbide Reinforced NiCrBSi Alloy 27 2.5 Cladding Metallurgy 30 2.6 Heat and Temperature 30

CHAPTER 3: METHODOLOGY

3.1 Introduction 31 3.2 Statistical Analysis Full Factorial 33 3.3 Variable Machining Parameter 33 3.4 Response Variable 34 3.5 Design of Experiment Matrix 34 3.6 Simulation Smart Weld Software Model 36 3.6.1 Step of Simulation 36 3.6.2 Type of Filler Material in Smart Weld Software 40 3.7 Validation Model 42 3.7.1 Workpiece Preparation 44 3.7.2 Experimental setup 47

CHAPTER 4: RESULT AND DISCUSSION

4.1 Introduction 49 4.2 Design factor 49 4.3 Results for Analysis of Variance ANOVA for Bead Clad Geometry 55 4.4 Pareto Chart and Normal Plot for Bead Clad Geometry 59 4.5 Main effect for bead clad geometry 63 4.6 Interaction plot for bead clad geometry 66 4.7 Optimization of Response Variable 69 4.8 Discussion 71 4.9 Effect Parameter on Geometry Size 72

CHAPTER 5: CONCLUSION AND FUTURE WORKS RECOMMENDATION