METHODOLOGY RESULTS AND DISCUSSIONS

vi 2.6.2 Bulid House of Quality HOQ From the Data 21 2.6.3 Design Product Based on HOQ 21 2.6.4 Use Screening and Scoring Method to Choose Best Design 22 2.7 Summarization of Literature Review 23 2.7.1 Basic Welding Fixture Design 23 2.7.2 Design Method to be Used 26

CHAPTER 3: METHODOLOGY

27 3.1 Process Flowchart 27 3.2 Literature Review 30 3.3 Develop Survey Questionnaire 31 3.4 Execution of Questionnaire 31 3.5 Bulid House of Quality HOQ 32 3.6 Conceptual Design 32 3.7 Concept Selection 33 3.8 Final Design Parts 33 3.9 Fabricate 33 3.10 Conducting Survey 34 3.11 Gantt Chart 34

CHAPTER 4: RESULTS AND DISCUSSIONS

37 4.1 Market Study 37 4.1.1 Experience in Conducting Welding Process 38 4.1.2 Conformity to Develop a New Tool Welding Fixture 39 4.1.3 Type of Welding that Usually Performed in Lab 40 vii 4.1.4 Welding Length that Usually Used 41 4.1.5 Need of Circular Welding 42 4.1.6 Method to Load, Unload and as Holding Mechanism 43 4.1.7 Preferable Condition of Tool Welding Fixture 44 4.1.8 Position of Welding Fixture During Welding Process 45 4.1.9 Suitable Welding Process for the Welding Fixture 46 4.2 Summary of Result of Market Study 47 4.3 Product Specifications 48 4.3.1 House of Quality 48 4.4 Conceptual Designs . 49 4.4.1 Concept A 50 4.4.2 Concept B 51 4.4.3 Concept C 52 4.4.4 Concept D 53 4.4.5 Market Existing Product 54 4.5 Concept Selections 55 4.5.1 Concept Screening 55 4.5.2 Summary of Concept Screening Phase 57 4.5.3 Concept Scoring 57 4.5.4 Summary of Concept Scoring Phase 60 4.6 Final Design 60 4.6.1 Refining Final Design 63 4.6.2 Fabrication Planning 65 4.6.3 Estimated Budget 67 4.6.4 Bill of Materials 68 4.6.5 Gantt Chart for Fabrication Planning 69 viii 4.7 Fabricated Product 70 4.7.1 Welding Fixture Test Run Results 71 4.7.2 Discussion About Welding Fixture Product 72 4.7.3 Welding Fixture Can Improve Learning Process 74 4.7.4 Tool Can Reduce Heat Distortions and Time Consumption 75 4.7.5 Welding Fixture Used During Lab Session 76 4.7.6 Welding Fixture Can Improve Weld Quality 77 4.7.7 Summary of Results Questionnaire 77 4.8 Summary of Results and Discussions 78

CHAPTER 5: CONCLUSIONS AND RECOMMENDATIONS