1.1 Introduction
Door is a movable structure that is used as a means of closing off entrances for security purpose and also for the beautification of the area. In the ancient time, doors were not used and the people of then live comfortably in peace since there is trustworthiness among them, but as time goes on, some people gang up to become an enemy of progress, they started stealing another people’s properties and also terminate their live. This brings the people of those days to sit down and discover what is now known as door. During that time, doors were made of grasses or wood as a means of locking to secure their life and properties.
As a prelude to other parts of this study, this chapter will discuss the background upon which this study was initiated, the statement of problems that led to this study, the Aim and Objectives of the study. Others are Significance of the study, Scope of work, Limitations of the Study and Definition of technical terms.
1.2 Background of Study
Wood as a material has a long history; it is the major component in the construction of doors. Doors made from wood is easy to construct and very cheap, but it can easily be destroyed when termites and other pests penetrate through it and it is not friendly with water and fire. The same thing happens to doors made from grasses, even worsen than that of the wooden door. As a result of these properties, wooden or grass door is not effective for security purpose as it can be easily breakthrough. It was due to these problems that made engineers to develop and design more strong and effective door which is the metal door. Metal doors are in various design, these are: metal flush doors, flat sheet metal door etc.
The doors mentioned above give maximum protection to life and properties and meet people’s want. But for more advancement, double panel door was employed by modern engineer into the family of existing doors to give maximum satisfaction. So the construction of this project is based on this double panel metal door. This door is divided into two (2) halves; the big door and the small door. It consists of the frame, the panel which is made of metal sheet, the stopper, the locking device, the hinges and the handle. There are forces acting on door, these are:-
- Contact Force: - This is a force which exists between surfaces in contact. It includes pushing and pulling forces, frictional forces and tension force in strings and wires.
- Force Field: - Typical examples of force field include gravitational force, electrostatic force and magnetic force.
A gravitational force is the force which the earth exerts on every object on its surface.
Therefore, in Nigeria where the research was carried out, the activities that was conducted is to fabricate of Twin Panel Metal Door.
1.3 Aim and Objectives of Study
The aim of the study is to design and fabricate the of twin panel metal door. In achieving this aim, the following specific objectives were laid out as follows:
- To allow large objects to pass through the door at the same time by opening the two (2) panels.
- To prepare students for future task as an engineer or technologist.
- To provide maximum security for life and properties.
- To ensure better life span for door with the use of quality materials.
- To promote and improve the method of door designs to a modern design.
- To expose the students to various machines used in the construction of twin panel metal door and to be technically involved.
1.4 Significance of Study
Metal door is a very strong type of door with a good life span and possesses high resistance to corrosion Metal door is more advantageous when compared to other types of doors due to its mechanical properties especially when a good material is selected for the construction of the door. It is more appreciated when coated properly with quality paint.
Metal door is therefore preferred to other types of doors due to the following reasons.
- It provides adequate security to life and properties
- It offers high resistance to strain.
- It has a good life span
- It beautify houses, offices etc
- It offers a very high resistance to rusting when coated properly.
This study will be of immense benefit to other researchers who intend to know more on this study and can also be used by non-researchers to build more on their research work. This study contributes to knowledge and could serve as a guide for other study.
1.5 Scope of Study
The scope of the research is focused on the Design and Fabrication of Twin Panel Metal Door.
1.6 Limitations of the Study
During the course of this study, many things militated against its completion, some of which are:
- Time Constraint: The time frame given to accomplish this project was very short due to school academic calendar and it was carried out under pressure which made the researcher not to implement some necessary features.
- Research material: availability of research material is a major setback to the scope of the study.
- Frequent power failure: This made the researcher append more money on fuel to ensure sustainable power.
- Financial Constraint: Insufficient fund tends to impede the efficiency of the researcher in sourcing for the relevant materials, literature or information and in the process of data collection (internet).
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