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Experimental Field Performance Analysis of Small Weed Remover in Sugarcane Grassland

B S Abdur Rahman Crescent University-Jeyakumar P D, M Thirumurugan
VIT University-Prabu K
Published 2018-07-09 by SAE International in United States
Agriculture is a backbone of country’s economy. To increase the crop production efficiency weeds are to be removed. The present weeding machines are different in dimension which may not be suited to small and medium field farmers, due cost effectiveness and dimensions. This work presents the development of sugarcane weed remover (SWR) and its performance investigation to improve the weed removal rate. The SWR is an application specific machine, it consists of single cylinder air cooled gasoline engine, blade assembly and transmission system. In order to improve SWR efficiency different blade profiles are theoretically analysed. The optimised blade profile is employed in the weed remover which offers fuel consumption of 0.11 g/(KW.h). The SWR on-field experience confirmed that the field capacity and efficiency in weeding is 0.0025 ha/hr and 60% respectively.
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Ni-P Composite Plating on Piston Ring for Improved Wear Performance

B S Abdur Rahman Crescent University-J Herbert Mabel, R. Rajendran
IP Rings Ltd-M Malathi
Published 2017-07-10 by SAE International in United States
Piston rings are used to seal the cavity formed between the piston and the cylinder in order to allow the engine to operate efficiently. The piston rings wear out due to constant rubbing action with cylinder wall and also have to withstand high temperature. This has lead to the development of new piston ring coatings with good wear properties under increasingly challenging running conditions. To improve the wear resistance of the piston rings several coating techniques are employed. One such technique is Ni-P composite coating which is widely used in the automotive industry. Reinforcement of ceramic particles enhances the tribological and mechanical properties of the coating. The base material of the piston ring used in this study is hardened carbon steel. The main objective is to develop an optimum Ni-P composite coating on piston ring to improve wear and friction resistance. The work involves development of Ni-P Metal Matrix with SiC particles by electroplating method to a coating thickness of 30 microns min. Microstructure, micro hardness, wear and friction properties of the coated piston ring…
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Solid Lubricant Assisted Machining -An Environmental Friendly Clean Technology to Improve the Surface Quality

B S Abdur Rahman Crescent University-R. Rajendran
Salalah College of Technology-T. Venkatesan
Published 2017-07-10 by SAE International in United States
Machining of materials has received significant consideration due to the increasing use of machining processes in various industrial applications. In machining, the heat generated in the cutting zone during machining is critical in deciding the work piece quality. Lubricants are widely used to reduce the heat generation. Their usage poses threat to environment and health hazards. Hence, there is a need to identify eco-friendly and user-friendly alternatives to conventional cutting fluids. Modern tribology has facilitated the use of solid lubricants such as graphite, calcium fluoride, molybdenum disulphide, and boric acid as an alternative to cutting fluids in machining. Solid lubricant assisted machining is an environmental friendly clean technology for improving the surface quality of the machined work piece.The present work investigates the role of solid lubricant assisted machining with graphite lubricants on surface quality while machining EN 8 steel .The performance of solid lubricant assisted machining has been studied in comparison with that of wet machining. The results indicate that there is a considerable improvement in the process performance with solid lubricant assisted machining as…
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Construction of a Low Cost Cutting Tool Dynamometer and Static Calibration of Measuring Cutting Force in a CNC Milling Machine

B S Abdur Rahman Crescent University-Shaul Hameed Syed
Amrita School of Engineering-K Rameshkumar
Published 2017-07-10 by SAE International in United States
In this work an attempt is made to design and fabricate a low cost dynamometer for measuring cutting forces in three directions in a CNC vertical milling machine. The dynamometer is designed and fabricated to withstand load up to 5000 N along ‘X’, ‘Y’ and ‘Z’ axis. Milling dynamometer developed in this work, consists of four octagonal rings as an elastic member on which strain gauges are mounted for measuring the cutting forces. Suitable materials for the fixture and for the octagonal rings are chosen for constructing the dynamometer. Structural analysis has been carried out to check the safe design of the dynamometer assembly consisting of fixture and the octagonal rings for the maximum loading conditions. Static calibration of the dynamometer is carried out using slotted weight method by simulating the actual conditions. Calibration chart was prepared for three directions by relating load and corresponding strain. The proposed arrangement has been interfaced using NI data acquisition system for measuring the cutting forces. The dynamometer developed in this work is validated by conducting experimental trials. This…
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Study of Wear Behaviour of POM/Graphite and POM/MoS2 Composites

B S Abdur Rahman Crescent University-G Ramanjaneyulu, R Rajendran
Published 2017-07-10 by SAE International in United States
POM/Graphite and POM/MoS2 composites were prepared using twin screw extruder for 2 and 6% compositions of fillers. The samples for impact test were prepared by injection moulding machine. The samples were studied for impact strength and wear loss. The wear test of the samples was carried out using pin on disc wear testing machine at various loads. Impact test of the samples was carried out by impact testing machine. The wear of the POM/MoS2 composites decreased compared to POM/Graphite composites. The impact results revealed that significant improvement in the impact strength for graphite and MoS2 fillers compared to pure POM. The microstructural study was conducted for wear samples to know the wear behavior of POM composites.
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Influence of Nano TiO2 Particles on the Properties and Behaviour of A356 Aluminium Metal Matrix Composites

B S Abdur Rahman Crescent University-Dinesh Paulraj, S.S.M Abdul Majeed, R Rajendran
Published 2017-07-10 by SAE International in United States
In this study, the TiO2 nano particles are incorporated with A356 aluminium to form a Metal Matrix Composite (MMC) to be utilized in aerospace, marine, military and automotive applications. Stir casting method was used for producing the metal matrix composites. A356 aluminium was reinforced with various weight percentage (wt%) of TiO2 under 10 minutes holding time and 450 rpm stirring speed. Mechanical properties such as tensile strength and hardness of the Metal Matrix Composite were tested. Using Scanning electron microscope the surface morphology and composition of the manufactured specimens were studied. Energy dispersive spectroscopic analysis was carried out to study the elemental composition of the MMC. The mechanical tests reveal that there is a significant enhancement in the properties of the composites with 1.5 wt% of TiO2.
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