TABLE OF CONTENT

Title page                                                                                                          i

Certification                                                                                            ii

Dedication                                                                                                         iii

Acknowledgement                                                                                   iv

Table of content                                                                                                v

Abstract                                                                                                            viii

CHAPTER ONE                                                                                                 1

1.0     Introduction                                                                                 1

1.1     Statement of problem                                                                              3

1.2     Aim and objectives of the study                                                      5

1.3     Scope of the study                                                                         5

1.4     Justification of the study                                                               5

CHAPTER TWO                                                                                                6

2.0     Literature review                                                                                     6

2.1     Background of the study                                                               6

2.1.1   Type of tricycle                                                                                        8

2.1.1.2 Recumbent delta Tricycle                                                             10

2.1.1.3 Recumbent Tadpole                                                                                11

2.1.1.4 Recumbent hand crank                                                                12

2.1.1.5 Recumbent Tandem                                                                               12

2.1.1.6 Special Purposes                                                                         13

2.1.17 Tricycle Rickshaw                                                                         13

2.1.1.8 Freight tricycle                                                                            14

2.2     Important of tricycle                                                                                15

2.3     Casting                                                                                                   15

2.4     Sand Casting                                                                                          19

2.5     Moulding sand used                                                                                20

2.5.1 Refractoriness                                                                                 21

2.5.2   Chemical inertness                                                                        22

2.5.3 Permeability                                                                                    22

2.5.4   Surface finish                                                                                          22

2.5.5 Cohesiveness                                                                                  22

2.5.6 Flow ability                                                                                     23

2.5.7 Collapsibility                                                                                   23

2.5.8 Availability                                                                                                23

2.6     Aluminium                                                                                              23

CHAPTER THREE                                                                                  28

3.0     Experimental procedure                                                                28

3.1     Pattern making                                                                                       28

3.2     Casting of the product                                                                             28

3.3.1   Crucible Pot                                                                                  29

3.3.2   Crucible Furnace                                                                          29

3.3.3   Drag and Cope                                                                                        30

3.3.4   Rammer                                                                                                  30

3.3.5   Scrapper                                                                                                 30

3.3.6   Charcoal                                                                                                 30

3.3.7   Shovel                                                                                           30

3.4     Steps involves in the casting operation                                           31

3.4.1   Sad preparation for moulding                                                        31

3.4.2   Melting of Aluminium                                                                              32

CHAPTER FOUR                                                                                     34

4.0     Experimental procedure                                                                 34

4.1     Lather machine                                                                                       34

4.2     Universal testing machine                                                             34

4.3     Results                                                                                                   35

4.4     Discussion                                                                                              35

CHAPTER FIVE                                                                                                37

5.0     Conclusion and Recommendations                                                 37

5.1     Conclusions                                                                                  37

5.2     Recommendation                                                                          37

Reference

ABSTRACT

A tricycle is a three-wheel vehicle used in conveying goods and humans from one place to another especially is the rural and farm area absorbing energy from the moving systems, drakes are generally applied to a rotating axle or wheels but may also take another form such as a moving fluid. Brake pedals are irregular in shape in at least the direction. Casting of the brake pedal is to reduce the weight, the sand casting is a process by which sand is use to prepare the mould. The pattern is made with a manna wood. Aluminiun was used to east the part. During the casting of the product to increase the strength of the aluminium, silicon was added to it during melting. Specimen were also produced which was latter machined and due for tensile test.