iv
TABLE OF CONTENTS
Abstrak i
Abstract ii
Acknowledgement iii
Table of Content iv
List of Tables viii
List of Figures ix
List of Abbreviations xi
1. CHAPTER 1: INTRODUCTION
1.1 Background Study of Sheet Metal Cutters
1 1.2
Problem Statement 3
1.3 Objectives of Study
3 1.4
Scope of Project 4
1.5 PotentialBenefit of Project.
4
2. CHAPTER 2: LITERATURE REVIEW
2.1 Introduction
5 2.2
Repetitive Motion Injuries of the Upper Limb 6
2.3 Hand Tools Ergonomics
7 2.4
Recent Studies on Hand Tool Ergonomics 8
v 2.5
Methods and Techniques Used in Evaluating Hand Tools Ergonomics 9
2.5.1 Several Considerations Regarding Hand Tool Ergonomics 10
2.5.1.1 Design of Grip 10
2.5.1.2 Effectives Weight of Tools 10
2.5.1.3 Grip span and Handle Length 11
2.5.1.4 Duration and Repetitiveness of Use 11
2.5.1.5 Users Consideration 12
2.6 Comparison of Methods and Technique
12 2.7
Evaluation Sheet Metal Cutters Tools and Technique 13
2.7.1 Questionnaire Survey 13
2.8 Literature Review Summary Journal
15
3. CHAPTER 3: METHODOLOGY
3.1 Introduction
17 3.2
Planning of Study 17
3.2.1 Final Year Project 1 FYP 1 17
3.2.2 Final Year Project 2 FYP 2 18
3.3 Types of Sheet Metal Cutters
18 3.4 Evaluation of Sheet Metal Cutters
19 3.4.1 Questionnaire Survey
19 3.4.2 Usability Survey Questionnaire
19 3.4.3 Comfort Survey Questionnaire
20 3.4.4 Actual Testing of Tools
20 3.4.5 Straight Cutting
20 3.4.6 Curved Cutting
21 3.5 Participants
21
vi 3.6
Laboratory Testing of Sheet Metal Cutting 22
3.6.1 Subjective Grip Force Assessment for Sheet Metal Cutting Tasks 23
3.6.2 Tool Specifications 24
3.6.3 Steps of Laboratory Testing 25
3.7 Data Analysis Method
27 3.8
Flow Chart of Project 27
3.8.1 Selecting Title and Approval Stage 29
3.8.2 Research Stage 29
3.8.3 Design and Development Stage 29
3.8.4 Analysis Stage 29
4. CHAPTER 4: RESULTS AND DISCUSSION
4.1 Tin Snips Data Analysis
30 4.2
Overall Score Result 32
4.2.1 Pre and Post Estimate Force Score for Tin snips 33
4.2.2 Tin Snips Grip Force Score 34
4.3 Pre Estimate and Post Estimate Results
35 4.4 Tin Snips Ergonomics Factors Survey Results
38 4.4.1 Ergonomics Factors
39 4.5
Tin Snips Usability Factor Survey Results 48
4.5.1 Usability Factors 49
4.6 Additional Hand Tools Evaluation
55 4.6.1 Hand Tools Design Consideration
55 4.6.2 Hand Grip
55 4.6.2.1 Comparison Tin Snips Hand Grip
55 4.6.3 Handle Length
56 4.6.3.1 Comparison Tin Snips Handle Length
57 4.6.4 Handle Size
58 4.6.4.1 Comparison Tin Snips Handle Size
58
vii 4.6.5 Handle Material
59 4.6.5.1 Comparison Tin snips Handle Material
59 4.6.6 Weight of the Tools
60 4.6.6.1 Comparison Tin Snips Weight of Tools
61 4.6.7 Handle Shape
62 4.6.7.1 Comparison Tin Snips Handle Shape
62 4.7
Testing Limitation 63
5. CHAPTER 5: CONCLUSION RECOMMENDATION
