Souvenir Containing Abstracts - YMCA University of Science ...

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National Conference on Trends and Advances in Mechanical Engineering EVALUATION OF ELECTRO DISCHARGE SAWING, A MODIFIED ELECTRO DISCHARGE MACHINING PROCESS 1 2 3 4 Kalley Harinarayana , T.Raghavender Reddy , Dr.N.Nagabhushana Ramesh , Dr.B.Balu Naik 1 Research Scholar, Jawaharlal Nehru Technological University, Hyderabad, A.P., ( harinarayana.k62@gmail.com) 2 Asst. Secretary, State Board of Technical Education and Training, Andhra Pradesh ( asee1sbtet@gmail.com) 3,4 Professor , CMR Engineering College, Hyderabad, A.P., ( nunna.nb@gmail.com banothbn@rediff.com) Electro Discharge Sawing is a hybrid process combining the features of EDM and ECM. Its major characteristic is extremely fast erosion rate compared to either of the above processes. This paper brings out its relative features associated with erosion mechanism, erosion rate and surface finish and the controlling process parameters. Keywords: Electrodischarge sawing, erosion rate, surface finish *** ANALYSIS ON THE STUDY OF CHANGES IN MECHANICAL PROPERTIES OF Al6063-SiC 1 2 3 *Mandeep Singh , Jaspreet Singh , Dipak Narang *1 B.Tech Student, *1 Maharishi Markandeshwar University, Mullana, (Ambala)India,man_deepgill29@yahoo.com , 2 M. Tech Student P.C.E.T. Lalru, jaspreet.deep123@gmail.com, 3 A.P, PCET Lalru Email :deepaknarang01@gmail.com TAME-2012 OCT 19-20, 2012 The unique tolerability of the composite materials for the specific requirements make these materials more popular in a variety of applications such as aerospace, automotive (pistons, cylinder liners, and bearings), and structural components, resulting in savings of money, material, and energy. In this paper; fabrication of aluminium metal matrix composite (MMC) is prepared by liquid metallurgy route (stir casting technique). The objective of this experimental investigation is to produce two different metal matrix composite (MMC) specimens using Al6063 as a base material which reinforced with a ceramic additive (silicon carbide SiC, with grain size 1000 mesh) with same volume fraction of 10% by wt. By the addition of SiCp particulates into the alloy of base metal Al6063; it was found increased value of the ultimate tensile strength, and hardness and decrease elongation of the composites. It was also investigated that the composite poured from lower layer (lower half) of melted matrix from crucible were with less values of tensile strength and hardness as compared to the composite poured from upper layer (upper half). Keywords: Composite materials; Liquid state mixing; Mechanical properties; *** FRICTION STIR WELDING OF ALUMINIUM ALLOY AND ITS TENSILE PROPERTIES 1 2 Sandhya Dixit , M.L.Aggarwal 1 2 Assistant Professor, Professor Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad Aluminium alloys have gathered wide acceptance in the fabrication of light weight structures requiring a high strength-toweight ratio. Compared to many fusion welding processes that are routinely used for joining structural aluminium alloys, friction stir welding (FSW) process is an emerging solid state joining process in which the material that is being welded does not melt and recast. The welding parameters and the tool pin profile play a major role in deciding the weld quality. In this paper an attempt has been made to understand the influences of rotational speed, welding speed and pin shoulder diameter of the tool on friction stir processed (FSP) zone formation in AA1200 aluminium alloy. Two different tool shoulder diameters ( 31 Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad
National Conference on Trends and Advances in Mechanical Engineering TAME-2012 OCT 19-20, 2012 20 mm and 10 mm ) have been used to fabricate the joints at two different tool rotational speeds (2000 rpm and 1400 rpm) and two different welding speeds ( 20 mm/minute and 10 mm/minute). Tensile properties of the joints have been evaluated to find the ultimate tensile strength of the welded specimen. Keywords: Friction stir welding *** INVESTIGATION AND ANALYSIS FOR THE WRINKLING BEHAVIOUR OF DEEP DRAWN DIE SHEET METAL COMPONENT BY USING FAST FORM 1 2 Surya Prakash , Dinesh Kumar 1, 2 Mechanical Engineering Deptt, ITM University, Gurgaon, Haryana Email: suryaprakash@itmindia.edu, +91-9718238577 The manual design of any type of drawing die is complicated and tedious procedure, In spite of all precautionary measures there are several chances of denting, cracking and wrinkling which needs to be rectified. As the design and development of sheet metal deep drawn die is a comprehensive technique which needs accuracy in the apprehension of working for high order and its rectification in forming process. The appearance of dimensional deviations of shape and position, of the defects in the metal sheets that have been subjected to a cold plastic deformation process, represents a critical problem for the specific industry, especially for the mass production, like the machine manufacturing industry. Thus, there arises the need for development of a system for manufacturing wrinkle free surface of deep drawn components. The complex forces act on the sheet metal blank during drawing are so unpredictable that they are difficult to determine manually and mathematically. These forces cause wrinkles and other defects on the surface of the wall of component. The aim of this publication is to present the principal aspects and investigation that effect wrinkling. Firstly component 3D-modeled in CATIA for analyzing for detecting wrinkle prone area by using fast form software. The input to software comprises of initial graphics exchange system .Cold rolled extra deep drawing quality material of sheet metal component has been utilize. The out put in form of results received regarding wrinkle prone area are found in closed agreement matching with the practical results. One can therefore easily predict and detect the tendency of expected wrinkle formation and stress distribution in any drawn component. Some methods for preventing wrinkling in deep drawn part are also suggested. Keywords: Wrinkles, Forming, Sheet Metal, Deep Drawing, *** MODELING OF Al-20 wt.% SiCp METAL MATRIX COMPOSITE USING SURFACE- ELECTRICAL DISCHARGE DIAMOND GRINDING PROCESS 1* 2 Shyam Sunder , Vinod Yadava 1 Associate Professor, Department of Mechanical Engineering, B.S.A. College of Engineering and Technology, Mathura - 281004, Uttar Pradesh, India, E mail: mtr_shyam@yahoo.co.in 2 Professor, Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad - 211004, Uttar Pradesh, India This paper reports the development of an artificial neural network (ANN) model for surface-electro-discharge diamond grinding (EDDSG) process to correlate the input process parameters namely current, pulse on-time, wheel speed, and duty factor, on output process parameters namely material removal rate (MRR) and average surface roughness (Ra). Experiments were carried out on newly self developed surface grinding setup for electro-discharge diamond grinding (EDDG) process. The experimentations are planned as per L9 orthogonal array with three levels defined for each of the factors in order to develop the data base for artificial neural network (ANN) training using error back-propagation training algorithm (EBPTA). The details of experimentation, ANN training and validation are also presented in this paper. The ANN back propagation algorithm with four inputs two outputs and one hidden layer with 26 neurons have been proposed to establish the process model. The model after proper training is capable of predicting the response parameter. Keywords: EDDG, ANN, Hybrid processes, Metal matrix composite. *** 32 Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad
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