Thesis Abstract

Abstract
The project aims to design, construct, and evaluate a bench shearing machine for mechanical engineering applications. The bench shearing machine is a mechanical device utilized for cutting sheet metal, plates, and other materials in various manufacturing and industrial processes. The project involves the conceptualization, design, and fabrication of the machine using standard mechanical engineering principles and practices. The key components of the machine include the shear blade, guide system, frame structure, and cutting mechanism. The design process begins with the selection of appropriate materials and components based on the intended application and operating conditions. Parameters such as cutting capacity, blade material, and shear force are considered in the design phase to ensure optimal performance and efficiency. The machine is designed to be compact, durable, and easy to operate, catering to the needs of small-scale workshops and manufacturing units. The fabrication process involves the assembly of the individual components according to the design specifications. Precision machining techniques are employed to ensure accurate alignment and smooth operation of the machine. The shear blade is sharpened and adjusted to achieve clean and precise cuts on different materials. Safety features such as blade guards and emergency stop mechanisms are incorporated to prevent accidents and ensure operator safety. The performance evaluation of the bench shearing machine is carried out through experimental testing and analysis. The machine is tested for its cutting accuracy, speed, and reliability under various load conditions. The results are compared against theoretical calculations and industry standards to validate the design and functionality of the machine. Any discrepancies or issues are identified and addressed through modifications and adjustments to improve the overall performance. Overall, the project aims to provide a cost-effective and efficient solution for sheet metal cutting applications in mechanical engineering industries. The bench shearing machine offers a versatile and reliable cutting solution for small-scale workshops and manufacturing units, enhancing productivity and quality in metal fabrication processes. The project contributes to the advancement of mechanical engineering technology by introducing innovative designs and solutions for industrial applications.

Thesis Overview

INTRODUCTION

Later in the years Nigeria as a country failed to react to the rapid advancement in technology until 1986, she realized that in both economy and technology she was under developed, she was dependent on the developed countries for survival, because many thing are being important from those countries. Attempt made to solve these problem include, introduction of the structural adjustment programme (SAP) and the war against indiscipline and corruption (WACI). These bodies prohibited the importation of some goods, there by building the inspiration on our people to embrace indigenous technology. This led to significant achievement in the field of technology of this country.Since this great achievement has made engineer, scientist and technologist in this country were able to join efforts both mentally and manually into production and research programmes. One of the fruits of their contributed effort was the invention of the bench shearing machine.

The bench shearing machine is manually operated, it can be useful in work shops or factories.In fact this product is aimed at providing a close substitute to the famous Japan made bench shearing machine.It is worthy to note that this bench shearing machine is designed and fabricated using our locally available materials to show the important of copy technology.

PURPOSE OF THE PROJECT

The fabrication of bench shearing machine is to reduce, alleviate and to eliminate suffering, time, money, energy, and waste of material and more especially the need for technological break through and self reliance which has been major concern of the federal government.Right from time immemorial metal shearing has been a very great problem in the society.To help eradicate this problem this project write up has delved into simplicities and construction of bench shearing machine that can be use to cut up to 4mm sheet of mild steel plate with a treated blade made up of high carbon steel.The machine is manually operated with handle known as the effort, the longer length of handle helps it to increase its output towards the work piece the material example mild steel, dead mild steel or aluminum alloys.

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