This project work deals with the design and fabrication of a pedal powered hacksaw cutting machine. The aim of this work is to develop a modernized and less stressful operation for cutting wood, metals and plastic materials. It is very useful for cutting PVC materials (pipes) and can be used widely in lather and in furniture making industries. This work can also serve as an exercising machine for fitness while cutting, it uses the principle of a slider crank mechanism which converts the rotary motion of the flywheel to the reciprocating motion of the hacksaw during pedaling. The machine was tested and continued to be very efficient with an ideal mechanical Advantage of 0.5 (less than 1), velocity ratio of 0.65 (less than 1), a power output of 5.72KW and an efficiency of 76.9%, which makes it very adequate and capable for cutting.
See Full PDF See Full PDFThis project work deals with the design and fabrication of a pedal powered hacksaw cutting machine. The aim of this work is to develop a modernized and less stressful operation for cutting wood, metals and plastic materials. It is very useful for cutting PVC materials (pipes) and can be used widely in lather and in furniture making industries. This work can also serve as an exercising machine for fitness while cutting, it uses the principle of a slider crank mechanism which converts the rotary motion of the flywheel to the reciprocating motion of the hacksaw during pedaling. The machine was tested and continued to be very efficient with an ideal mechanical Advantage of 0.5 (less than 1), velocity ratio of 0.65 (less than 1), a power output of 5.72KW and an efficiency of 76.9%, which makes it very adequate and capable for cutting.
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European Journal of Advances in Engineering and Technology
This project work deals with the design and fabrication of a mechanical pedal powered hacksaw cutting machine. The aim of this work is to develop a modernized and less stressful operation for cutting wood, metals and plastic materials. It is very useful for cutting PVC materials (pipes) and can be used widely in lather and in furniture making industries. This work can also serve as an exercising machine for fitness while cutting; it uses the principle of a slider crank mechanism which converts the rotary motion of the flywheel to the reciprocating motion of the hacksaw during pedaling. The machine was tested and found to be very efficient with an ideal mechanical advantage.
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International Journal of Research Publication and Reviews
The design and force analysis of a mechanical pedal powered hacksaw developed to modernized and less stressful operation for cutting of engineering materials. The machine was tested and found to be very efficient with an ideal mechanical advantage of 1.22, velocity ratio of 1.64m/s, a power output of 0.395kw and an efficiency of 74.4%, which makes it very adequate and capable for cutting. Furthermore, the rotational speed of the flywheel was fond to be 10.3 rad/s. It is very useful for cutting PVC materials (pipes) and can be used widely in lather and in furniture making industries. This work can also serve as an exercising machine for fitness while cutting; it uses the principle of a slider crank mechanism which converts the rotary motion of the flywheel to the reciprocating motion of the hacksaw during pedaling.
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Ife Journal of Technology
Hacksaw is a simple machine used to cut engineering materials like metal pipes and plastic tubing. The hand-held hacksaw is commonly used during fabrication process because it is easy to handle and does not require electricity. However, this hacksaw requires too much effort to use and operator is prone to accident. There is sparse literature on use of pedal powered hacksaw as an alternative. Therefore, this study was planned to design, model, fabricate and evaluate a pedal powered hacksaw using recycled bicycle. Standard design procedures were used to design and fabricate scrap bicycle, base, vice, hacksaw and link mechanism for the pedal powered hacksaw. Autodesk Inventor Professional software was used to model the fabricated machine to carry out its stress analysis. Performance evaluation of the pedal powered hacksaw was carried out on various engineering materials and the results were compared to hand-held hacksaw. It was established that the pedal powered hacksaw saved significant time in cutting and less tedious with fewer cutting strokes. The pedal powered hacksaw, a technological innovation, will save the environment from dumping of scrap bicycles and give the operator on-the-job benefit of a cycling exercise for physical and mental fitnesses.
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
As we know that in large manufacturing industries, the cutting operation is very required for raw material, for this purpose they use manually operated conventional hacksaw machine for cutting operation. In that type of machine single piece can cut at a time by using an electric motor. Also,one labour utilizes for same. This project is on the design and construction of an electric supply hacksaw machine for cutting of metal to different size and length with the help of hacksaw. The objective of 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. The power to hacksaw is provided by the motor. Here, the step down transformer is used for converting the 220-230V AC power to 12V DC power to run the machine smoothly , then the current is supplied to the motor then with the help of single slider crank mechanism. These machines can be used in remote places where electricity is regular. It is designed as a portable one which can be used for cutting in various places. It can be used for cutting in various places. It can be used for operating on materials like thin metals ,woods etc. I.
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As we know that in large manufacturing industries, the cutting operation is very required for raw material, for this purpose they use conventional hacksaw machine for cutting operation. In that type of machine single piece can cut at a time by using an electric motor. Also, one labor utilizes for same. So it is time-consuming and comparatively costly. Therefore we have manufactured a four-way hack-saw machine which is used for cutting job simultaneously, this four-way hack-saw machine uses single motor four cutting job at the same time while in conventional hack-saw machine single motor is used for cutting one job only. Conversion of rotary motion of dc motor into reciprocating motion is obtained by using the eccentric cam. By making such type of machine, cutting operation time as well as labor working time can be reduced. Since such a hack-saw machine gives more productivity than a conventional cutting hack-saw machine, it can be used in manufacturing industries where automation is required. It can be also used in industries where labor availability is less. In this present work, we manufactured a model of four-way hacksaw machine, so we use light duty of structural parts and crank mechanism, the capacity of the electric motor is also very low. But in future, if we want to use such type of machine in industry, we can manufacture it by using heavy duty of body structure and all other required parts.
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International Journal of Scientific & Technology Research
This paper addresses the development and performance of a Human Powered Flywheel Motor (HPFM) operated forge cutter. This set-up is used to cut crop residues like maize stovers, sorghum stovers in dry condition. This cut stovers can be fed to cattle directly. The current practice by small livestock farmers is to cut stover manually by axe or machetes. The mechanized cutters also available which are hand operated as well as electric motor driven. But today there is severe power shortage in country like India, particularly in rural and remote area. It is convergent to the fact that the hand muscles are weaker than leg muscles. The concept of human powered flywheel motor is used to develop the pedal operated forge cutter. In this set-up flywheel is used as a motor or a store for energy. The operator pumps the energy into flywheel by pedaling bicycle- drive mechanism with a speed rising gear pair. After a one minute pedaling is stopped, and then flywheel shaft is connected to cutter sha.
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In this project work and effort has been made to develop a modernized four way hacksaw machine and less stress full operation for cutting wood, metal and plastic materials. The aim o f this work is to develop a hacksaw machine that will use a less effort to produce uniform cutting of PVC pipes ,metals ,wood. It is also done to show the performance difference between hand driven, pedal drive and four way hacksaw machine. This model implies a conversion of rotary motion of crank to reciprocating motion of hacksaw blades, which is done by using Scotch Yoke Mechanism. This motion is used for hacksaw machine, in this model we can operate four hacksaws at same time. This model will overcome the traditional hacksaw machine which done material cutting of single piece at particular times interval and also fulfills the need o f more material cutting accounts to mass production. This machine works significantly with minimum vibrations and jerks. This machine will also done cutting of different materials, hence the purposed model of hacksaw machines will be welcomed by many industries due to compactness and efficiency. To achieve this goal the four way hacksaw machine is developed.
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