Description
ABSTRACT
This project was on design and fabrication of a manual tile cutter with boring saw whose operational principle centers on the process of scoring and breaking. In the light of purpose of this project, the design was drafted in accordance with the specifications and principles guiding the operation of manual tile cutters. Materials were carefully selected and tested in accordance with the standard in order to meet the expectations of the device in terms of its functionality and durability; such materials are mild steel, aluminum, among others. Following appropriate drafting of the working drawings, the project was constructed in strict adherence to Engineering and Technology design processes. Thus guided by the operational guidelines and principles, due attention paid to manufacturing specifications that agree with those principles stipulated by Chapman 1972 and Ghand 2008. Use was also made of appropriate engineering analysis and applications to determine the effect of compression forces which occur in different dimensions using in the machine: such as bending stress, torque, shearing stress, working stress, section modulus as well as the maximum compression stress of the cutter which equals 0.34Mpa. The calculated maximum force required of the cutter for high efficiency is 72N after assembly. Perpendicular, transverse and circular cuts were made on several tiles without breakage. The cutter was tested and its efficiency was rated 72.5 indicating an appreciable degree of efficiency. This result evidently acknowledged that the cutter has the ability to make series of consecutive clean cuts on tiles without fracture. The impact of the project in relation to contributions to knowledge was highlighted while some recommendations were made.
TABLE OF CONTENTS
Content Page
TITLE PAGE i
CERTIFICATION ii
DEDICATION iii
ACKNOWLEDGEMENTS iv
TABLE OF CONTENTS v
ABSTRACT vii
CHAPTER ONE: INTRODUCTION 1
Background to the Study 1
Statement of the Problem 2
Purpose of the Project 4
Significance of the Project 5
Assessment Research Questions 7
CHAPTER TWO: REVIEW OF RELATED LITERATURE 8
Conceptual Framework 8
Theoretical Framework 12
Principles of Operation of Tile Cutter with Boring Saw 12
Classification 16
Review of Related Empirical Studies 23
Summary of Review of Related Literature 28
CHAPTER THREE: PROJECT DESIGN AND CONSTRUCTION 31
Performance Specifications/Calculation 31
Young Modulus of Elasticity 32
Torque required to rotate the Handle 36
Design/Schematic Diagrams 38
Efficiency of the Machine 39
Construction Procedure 43
Working Material and Specifications 48
Required Tools and Equipment 49
Assembly Drawing 51
CHAPTER FOUR: DATA PRESENTATION 52
Project Testing 52
Test Results 52
Finding Employing Structured Interview 53
Assessment Research Question 58
Major Findings of the Study 64
Limitations to the Project Design 67
Contributions to Knowledge 68
CHAPTER FIVE: DISCUSSION, CONCLUSION AND RECOMMENDATION 70
Discussion Structured Interview 71 Discussion Assessment Result 72
Adaptation of the Project 74
Conclusion 75
Recommendations 76
REFERENCES 78
APPENDICES Appendix A: Material Selection 82
Appendix B: Cost of Materials 83
Appendix C:Transmittal Letter 84
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