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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    MODELING AND SIMULATION OF CUTTING FORCES IN SURFACE GRINDING PROCESS AT MICRO LEVEL USING MATLAB
    (G. B. Pant University of Agriculture & Technology, Pantnagar-263145, 2023-02) Singh, Yogendra Kumar; Pankaj
    Grinding is a major manufacturing process that accounts for approximately 20– 25% of total machining expenditures in industrialized countries. Everything used todayhas been machined by grinding at some point in its manufacturing process or has been produced by machines that owe their functionality to grinding operations. Grinding forces play a key role in the grinding process by influencing the specific power consumption, heat generation at the interface of abrasive cutting grains and the workpiece, quality of the ground workpiece surface and various other performance parameters. So, a mathematical model to estimate the grinding forces would help to achieve the target. Previously developed models were usually based on the assumption which might contradict with the reality as they didn’t consider the grain-workpiece interaction at the micro level (i.e., rubbing, ploughing and cutting). Also, most previous studies could only be used to predict average values on wheel basis of grinding forces because the most models were built based on average grain cutting depth or average chip thickness, and none of the grinding force details at the micro level. A new model to predict the grinding forces at micro levelof grain-workpiece interaction have been developed in the present study and validated with help of MATLAB and data available in the previous studies. The effects of grinding parameters such as depth of cut, workpiece speed, wheel speed and size of abrasive grains was studied. The predicted grinding forces were almost identical to the grinding forces experimentally estimated by the previous researchers, with an average percentage error of 6.09%. It was found that the Size of the abrasive grains (abrasive grit number) have the largest impact on rubbing, ploughing and cutting contributions. Depths of cut have the second largest effects and the dominant force component could probably be changed from rubbing to cutting by using different cut depths. The effects of wheel speeds can also be seen: fast wheel speeds lead to less rubbing forces and more cutting forces, while the effects of workpiece feed rates seem to be limited. Therefore, high wheel speeds and large workpiece feed rates are recommended to achieve high material removal rates. (
  • ThesisItemOpen Access
    Automation of farming equipments based on G/M code for Agriculture 4.0
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-08) Rajwar, Sumit; Rajiv Suman
    Farming is not only an occupation in India but in some cases as the prime source of only livelihood. Any marginal changes in it can cause effects that are positive or negative. Presently India has been able to increase its productivity compared to the Post Independence level. Presently, India is facing many challenges in agriculture from decreasing agriculture land, to increasing population that require increased production, loss of fertility and climate change. All this can cause food insecurity in India as well as push millions back to poverty and malnutrition. This study presents into an insight into the present agriculture in India, and how it is integrated with the economy of the country and how it will affect the people that are directly dependent on agriculture. It gives us the information about the production and productivity of farms. Thus in sync with the agriculture evolution and to facilitate the agriculture 4.0 in India and professes a CNC based mechanism, on G and M code to increase the productivity of agriculture without human interference. So that the people employed in agriculture can be substitute into other occupations, thus reducing the workforce of the agriculture Sector and diversifying them into other sectors. The CNC based machine consists of Machine Control unit, which is connected with the drivers and assembled so that the differential and steering system are run with the help of motors. The Agriculture unit would work on G and M code, which will run the machine along the agriculture field in order to complete agricultural operations. This will reduce farm load as the machine can be used in different agriculture operations such as Sprinkling, Ridging, Transport, weeding, cultivating. Thus it presents a mechanism as well as CNC programme to facilitate agricultural operations. The whole study is to support the Government of India initiative of doubling Farmers Income.
  • ThesisItemOpen Access
    Parametric investigation and optimization of resistance spot welding of HR E34 SS4012A low alloy steel by using Taguchi methodology
    (G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-08) Rai, Himanshu Krishna; Tewari, Maneesh
    In the present experimental work, HR E34 low alloy steel (SS 4012A) are selected for research work. They are high-quality steels with a combination of alluring qualities that are not possible in common mild steel. SS 4012A material finds application in the construction of ships, railway wagons and carriages, pressure vessels, pipes, heavy duty transport vehicles, etc. Many researchers have worked on RSW to improve the quality of weld joints through modifications to the process and optimization of process parameters. But there was not any work reported on the parametric optimization of the RSW process with low alloy steel, which is slightly different from mild steel. Therefore, in this study, parametric optimization of the RSW process with different process parameters has been undertaken. Welding current, welding time and electrode force were selected as process parameters while tear strength of the weld joint was selected as a response. Experiments were carried out according to Taguchi's L9 orthogonal array (OA) and Taguchi analysis was used in optimization. Analysis of variance (ANOVA) was used to determine the effects of each factor on the quality of the weld joint. The experimental results revealed that the welding current of 15 kA, welding time of 17 cycles, and electrode pressure of 9 bar provided the maximum possible tear strengths of the spot weld joint. The maximum variation in the tear strength of the welded joint was observed by the variation in the welding current.
  • ThesisItemOpen Access
    Fabrication and investigation of MoS2 reinforced Aluminium based metal matrix composite
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-11) Dhyani, Ruchika; Chauhan, Sakshi
    Materials R&D has recently evolved from monolithic to composite materials. modifying structural materials to meet the global demand for lightweight, low-cost, high quality, and high-performance materials. Conventional metal alloys are unable to meet these unusual property combinations. Hence every effort aims to develop a material that can be appropriate for various industry and machinery purposes having better strength to weight ratio and high-temperature performance. Composites are replacing alloys in almost every engineering field having many such properties. When talking about continuous sliding and high-temperature applications lubrication becomes a necessity, but it is often difficult to keep a liquid lubricant from decomposing at high temperatures or in vacuum environments. Self-lubrication is the solution that is replacing liquid lubrication for such applications. In the present study, a modest attempt has been made to develop cast aluminium-based MoS2 reinforced metal matrix composite and worked upon to enhance mechanical and tribological properties of the Aluminium. The objective is to fabricate a self-lubricating composite via the stir casting method and analyse the properties of the composite after performing various tests. Despite the abundance of reinforcements accessible, only a few particles such as molybdenum disulfide have the property of lubrication as well as better load-carrying capacity than graphite and Polytetrafluoroethylene (PTFE), which are both extensively used lubricants. MoS2 is a prominent solid lubricant that has a low coefficient of friction in both normal and vacuum environments and does not demand adsorbed vapors or moisture. The composite containing Al and MoS2 seems to have a synergic effect on tribological properties while giving good mechanical properties up to a certain limit of MoS2 content.
  • ThesisItemOpen Access
    Experimental investigation of fabricated SiC reinforced aluminium based metal matrix composite
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-11) Rawat, Rohit; Singh, V.K.
    Aluminium has been widely used in engineering applications because it is light in weight. A vast number of experimental studies have been performed on addition of hard ceramic particles to aluminium matrix to enhance its strength, hardness and wear resistance. Every efforts aims to develop a material which can be appropriate for various industry and machinery purpose. In the present study, a modest attempt has been made to develop cast aluminium based silicon carbide particulate metal matrix composite. Here work objective is to develop a conventional low cost method of producing MMCs and to obtain homogeneous dispersion of ceramic particles. To achieve these objectives stir casting technique has been adopted. Adding Magnesium has improved wettability between aluminium and SiC particles by reducing the silicon di oxide layer on the surface of the SiC. In this work, we examine the influence of reinforcement on different mechanical and tribological properties. Density, porosity, microhardness, yield strength, ultimate tensile strength, percent elongation, and young modulus have been used to evaluate the mechanical properties. Pin on disc and dry sand abrasion tests were used to determine tribological characteristics. Microscopy tests, SEM show the dispersion of reinforcing phase in the matrix phase. In the case of SiC, mechanical and tribological properties are optimum at 21 wt. % of SiC.
  • ThesisItemOpen Access
    Comparative investigation of effect of surface modification techniques on Aluminium based metal matrix composites
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-11) Pathak, Ambuj; Singh, V.K.
    In today's world of engineering materials, every material should have a set of characteristics. It is the driving force behind the creation of several alloys, polymers, composites, and other materials. Metal matrix composites have a wide range of characteristics. The characteristics of metal matrix composites are sometimes determined by the matrix, which is a metallic element. Metal matrix composites' characteristics are influenced by the reinforcement, which can be metallic or non-metallic. In this work, we examine the influence of reinforcement on different characteristics of metal matrix composites such as self-lubrication. In this investigation, there are two focused areas. Effect of different reinforcement and Laser grooving on Mechanical and Tribological Characterization of MMCs. Comparative Investigation of the influence of reinforcement material and laser micro grooving on the morphological properties of MMCs. Mechanical characterization was performed with help of density, porosity, microhardness, macro hardness, yield strength, ultimate tensile strength, % elongation and young modulus. Tribological characterization was performed with the help of pin on disc test and dry sand abrasion test. Influence of reinforcement and laser micro grooving on the morphological properties and microstructure of MMCs analyzed with the help of SEM. In the case of SiC, physical, mechanical and wear characteristics are optimum at 21 wt. % of SiC. For MoS2 reinforcement, the 5.5 wt. % of MoS2 all characteristics found optimized.
  • ThesisItemOpen Access
    Optimization of cutting parameters during turning of 16MnCr5 steel using Taguchi technique
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-03) Agarwal, Swapnil; Rajiv Suman
    The present work concerned an experimental study of turning on 16MnCr5 Steel with the help of two different types of coated carbide insert (TNMG160404 and CNMG120404). The objective was to find the optimum machining parameters viz. cutting speed, feed, and depth of cut so as to minimize the surface roughness of the machined material and maximise material removal rate. Experimental work is carried out with the help of computer numeric control (CNC) lathe machine. Machining is done on a 28mm dia and 150 mm long 16MnCr5 steel rod. After machining material removal rate and surface roughness is measured. CNC turning operation are performed using L9 orthogonal array has been developed between dependent and independent variables with the help of Taguchi Technique. The data was compiled into MINITAB 17 software for analysis. The relationship between the machining parameters and the response variables (surface roughness and material removal rate) were modelled and analysed using Taguchi technique and optimization is done with the help of S/N ratio and by applying ANOVA approach. To get optimised parameters for surface roughness and material removal rate we applied lower-the-better condition for surface roughness and higher-the-better condition for material removal rate in signal-to-noise ration. Analysis of Variance (ANOVA) was used to investigate the significance of these parameters on the response variables. Results showed that feed is the most significant factor affecting the surface roughness for TNMG160404 Insert closely followed by cutting speed and depth of cut, Cutting Speed is the most significant factor affecting the surface roughness for CNMG120404 Insert closely followed by depth of cut and feed and depth of cut is the most significant factor affecting the material removal rate for TNMG160404 and CNMG120404 Insert closely followed by feed and cutting speed The optimum combination of parameters for carrying out the machining were obtained from Taguchi Technique are shown in the results section.
  • ThesisItemOpen Access
    Parametric investigation and optimization of submerged Arc welding process for IS-2062 and MS-10748 Weld
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-07) Pant, Shikha; Tewari, Maneesh
    Submerged Arc Welding is a method of fusion welding in which heat is produced by an arc between the work piece and a continuously fed filler metal electrode. A dense blanket of molten flux and slag formed from the granular fluxing material pre-placed on the work protects the molten weld pool from the surrounding atmosphere. Due to heat generation there are thermal and residual effects which reduce the quality of weld joint. Also in the welding of dissimilar metals, the difference between the melting point of both metals impact the joint quality. As per researches, much work has been cited on the optimization of process parameters using Aluminium and Ferritic metals but no work was found on the parametric optimization of Submerged Arc Welding (SAW) process with different mild steel metals. Therefore, in this study process parameters optimization of SAW process using IS2062 and MS10748 metals of mild steel is done. Welding current, welding speed and wire feed rate are taken as input parameters while tensile strength and hardness were selected as responses. Experiments were performed according to Box Behnken Design and ANOVA (Analysis of Variance) was used to determine the effects of each factor on weld quality. The welding current was found to affect the quality of weld joint the most. Microstructure analysis was done with the Optical Microscope with Interfaced Computer and it was found that coarse structure is formed in fusion zone.
  • ThesisItemOpen Access
    Parametric optimization and microstructural study of IS 2062 mild steel weld joints by submerged arc welding with Application of TiO2 nanoparticle inclusions
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-03) Semwal, Saurav; Tewari, Maneesh
    Submerged arc welding process is an arc welding process in which arc generates under the blanket of granular flux by which molten metal is isolated from the surrounding so that it is not react with the surrounding as result of that the quality of weld bead improve. In this welding, high heat generates during the process by which the rate of melting of electrode increase as the result of that high liquid metal deposited at the weld joint. With these advantages, some disadvantages associated with high heat generation such as thermal cycle and residual stress, it reduces the quality of weld bead. Many researchers have worked on SAW to improve the quality of weld joint such as modification of process and optimization of process parameters. But there was not any work reported on the parametric optimization of SAW process with TiO2 nanoparticles. Therefore in this study, parametric optimization of SAW process with TiO2 nanoparticles are done. Welding current, arc voltage, welding speed and height of TiO2 nanopowder in the groove were process parameters while ultimate tensile strength, impact toughness and depth of penetration were selected as responses. Experiments were carried out according to Taguchi's L9 orthogonal array (OA) and Taguchi analysis was used in optimization. Analysis of variance (ANOVA) was used to determine the effects of each factor on quality of weld joint. It was found that welding current affects the quality of weld joint at most. SEM (scanning electron microscope) and metallographic microscope were used to observe the effect of TiO2 nanoparticles on the microstructure of the weld joint and it was found with the use of TiO2 nanoparticles, the acicular ferrites structure was formed in the weld zone which increases the impact toughness.