This project is on the design and construction of a pedal operated hacksaw machine. Pedal Powered Hacksaw Machine is a device which is used for cutting wood, plastic and metals. The basic principle of this machine is slider crank mechanism, which is an inversion of four bar mechanism. The concept of this mechanism is that the rotary motion is converted into reciprocating motion. The mechanism has four links connected to form sliding pair. Thus when one link is moved along the circumference of the circle, the final link will generate the sliding movement for cutting process.

TABLE OF CONTENTS
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
1.0      INTRODUCTION
1.1      BACKGROUND OF THE PROJECT
1.2      AIM OF THE PROJECT
1.3      OBJECTIVE OF THE PROJECT
1.4      SCOPE OF THE PROJECT
1.5     SIGNIFICANCE OF THE PROJECT
1.6      SCOPE OF THE PROJECT
1.7      PROBLEM IDENTIFICATION
1.8      JUSTIFICATION AND RELEVANCE

CHAPTER TWO
2.0     LITERATURE REVIEW
2.1      REVIEW OF THE STUDY
2.2         REVIEW OF THE RELATED WORK
2.3      TYPES OF HACKSAWING
2.4      FEATURES OF MODERN HACKSAW
2.5      DESCRIPTION OF HACKSAW
2.6      HISTORICAL BACKGROUND OF THE STUDY

CHAPTER THREE
3.0     METHODOLOGY
3.1      PROPOSED METHODOLOGY
3.2      COMPONENTS USED AND CALCULATIONS
3.3      DESCRIPTION OF THE HACKSAW MACHINE
3.4 DESCRIPTION OF THE PROJECT SETUP
3.5      WORKING OF THE PROJECT
a.   Acquiring data from the user
b.   Sequence of operation

CHAPTER FOUR
RESULT ANALYSIS
4.0      CONSTRUCTION PROCEDURE AND TESTING
4.1      CASING AND PACKAGING
4.2      ASSEMBLING OF SECTIONS
4.3      MOUNTING PROCEDURE
4.4      TESTING OF SYSTEM OPERATION

CHAPTER FIVE     
5.0      CONCLUSION, FUTURE SCOPE, AND REFERENCES
5.1      CONCLUSION AND FUTURE SCOPE
5.2      REFERENCES

 

 

CHAPTER ONE
1.0                                                      INTRODUCTION
Pedal power is the transfer of energy from a human source through the use of a foot pedal and crank system. This technology is most commonly used for transportation and has been used to propel bicycles for over a hundred years. Less commonly pedal power is used to power agricultural and hand tools and even to generate electricity. Some applications include pedal powered laptops, pedal powered grinders and pedal powered water wells. Some third world development projects currently transform used bicycles into pedal powered tools for sustainable development. This project concentrates on pedal powered hacksaw machining. An individual can generate four times more power (1/4 HP) by pedaling than by hand- cranking. At the rate of ¼ HP, continuous pedaling can be served for only short periods, approximately 10 minutes. However, pedaling at half this power (1/8 HP) can be sustained for close to 60 minutes but power capability can depend upon age. As a consequence of the brainstorming exercise, it was apparent that the primary function of pedal power one specific product was particularly useful: the bicycle. Many devices can be run right away with mechanical energy. A saw is a tool that uses a hard blade or wire with an abrasive edge to cut through softer materials. The cutting edge of a saw is either a serrated blade or an abrasive. A saw may be worked by hand, or powered by steam, water, electric or other power. An abrasive saw uses an abrasive disc or band for cutting, rather than a serrated blade.
The principle of pedal power hacksaw is to change circulatory motion or cycling motion into translatory motion with the help of metal cutting rod. This is mainly used for cutting metals and plastics. it is manually pedal operated system. If we use dynamo then we can produce electricity which will be help to lighting the work piece area when electricity is not available in mechanical workshop. A hacksaw is a fine- tooth saw with a blade under tension in a frame, used for cutting materials such as metal or plastics. Hand-held hacksaw consist of a  metal arch with a handle, usually a pistol grip, with pins for attaching a narrow disposable blade. A screw or other mechanism is used to used to put the thin blade under tension. It is a fine tooth hand saw with a blade under tension. It is used to cut metals and PVC pipes. It would be useful in many projects discussed on this site which used plastic pipes as materials. Blades of hacksaw are measured in TPI (Tooth per Inch). Different TPI is needed for different jobs of cutting.
1.1                                       BACKGROUND OF THE PROJECT
Generally, a hacksaw is a handheld tool used to cut through materials like plastic tubing and metal pipes. Its cutting mechanism is provided by removable blades which feature sharp teeth along their outer edge. In most cases, a hacksaw consists of a metal frame that resembles a downward- facing. A handle of plastic, wood, or metal is typically affixed to one end of the frame. The frame’s ends feature adjustable pegs that can be tightened to secure a blade in place, and loosened to remove it. Hacksaw blades are long, thin strips of hardened steel that feature a row of teeth along their cutting edge. Each end of the blade is punched with a small hole that fits onto the saw frame’s pegs. Most blades range in length from ten to 12inches (25.4 to 30.48 cm), although six-inch (15.24 cm) blades can be purchased to fit smaller hacksaw models.
1.2                                                 AIM OF THE PROJECT
The main aim this project is to save man power and time in cutting metals in order to achieve high productivity. It is a cutting machine with teeth on its blade used specially for cutting metals. This machine save man power and time in cutting metals and at the same time achieve high productivity
1.3                                           OBJECTIVE OF THE PROJECT
The objective of this work is:

• To cater to the issue of competition in mechanical industry the need for automation is assess by all the industry.
• To identify the key policy avenues considered to be appropriate to meet the challenge of sustainable manufacturing and packaging industry for the future.
• To provide alternative for industries aiming toward reducing human effort and improvement in material handling system by implementing automation.
• Sustainable and practical automation solutions for the future industrial environment.

1.4                                         SIGNIFICANCE OF THE PROJECT
A device that applies force, changes the direction of a force, or changes the strength of a force, in order to perform a task, generally involving work done on a load. This machine is often designed to yield a high mechanical advantage to reduce the effort needed to do that work. A simple machines a wheel, a lever or an inclined plane. All other machines can be built using combinations of these simple machines.

• The machine can solve the problem of time consumption.
• Waste of resources in face of labor cost is reduced.
• The machine can be used in the industry where it is manufactured, at the packaging sector.
•  And it is used as hardware in large quantity like in fabrication of machine
• It provide alternative for industries aiming toward reducing human effort
•  It generates sustainable and practical automation solutions for the future industrial development.

1.5                                                 SCOPE OF THE PROJECT
1. The machine can solve the problem of time consumption.
2. Waste of resources in face of labor cost is reduced.
3. The machine can be used in the industry where it is manufactured, at the packaging sector.
4. And it is used as hardware in large quantity like in fabrication of machine
5. It provide alternative for industries aiming toward reducing human effort
6. It generates sustainable and practical automation solutions for the future industrial development.
1.6                                             PROBLEM IDENTIFICATION

• In a furniture making industry at production it is widely used
• It can perform cutting operation in various kinds of industries.
• This      machine       can      be     applied       in carpentry and plumbing works also.

1.7                                          ADVANTAGES OF THE PROJECT

• Easy To Use
• Consistent Cutting Results
• Fast Cutting

1.8                                         JUSTIFICATION & RELEVANCE
We have found a power motorized chain power hacksaw machines to be the most useful for general shop work. Modern heavy- duty hacksaw machines provide an economical and efficient means of sawing a wide range of materials and stock sizes. Motorized chain power hacksaw machines are getting rarer all the time but they do a good job within their capacity. If you can get one that takes standard hacksaw blades then you'll have a tremendous range of blades to choose from and will be able to cut most anything. Hacksaws are more tolerant to tensioning maladjustment and run off. A major advantage of power hacksawing is the relatively low capital investment required. Tooling and maintenance costs are low. Accuracy and finishes produced, range from fair to good depending on the material being sawed. Time saving as compared to simple hacksaw. Comfortable then ordinary hacksaw.

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