Souvenir Containing Abstracts - YMCA University of Science ...

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National Conference on Trends and Advances in Mechanical Engineering THEME- III PRODUCTION ENGINEERING TAME-2012 OCT 19-20, 2012 ELECTRICAL DISCHARGE MACHINING OF ALUMINIUM METAL MATRIX COMPOSITES- A REVIEW 1 2 3 Bhaskar Chandra Kandpal *, Jatinder Kumar and Hari Singh 1 Assistant Professor, Mechanical Engineering, Inderprastha Engineering College,Ghaziabad, Uttar Pradesh 2 Assistant Professor, Mechanical Engineering,National Institute of Technology, Kurukshetra, Haryana. 3 Associate Professor, Mechanical Engineering,National Institute of Technology, Kurukshetra, Haryana. * Corresponding Author : E-mail address kandpalbhaskar2000@gmail.com, Ph. No – 9717508244 Electrical discharge machining (EDM) is the process of machining electrically conductive materials by using precisely controlled sparks that occur between an electrode and a workpiece in the presence of a dielectric fluid. Aluminium metal matrix composites (AMMCs) refer to the class of light weight high performance aluminium ceramic material systems. The reinforcement in AMMCs could be in the form of continuous / discontinuous fibres, whiskers or particulates, in volume fractions ranging from a few percent to 70%. These materials are extensively used in industry. Greater hardness and reinforcement makes it difficult to machine using traditional techniques, which has impeded the development of AMMCs. These materials can be machined by many non traditional methods like water jet and laser cutting but these processes are limited to linear cutting only. This paper presents a review of research work related to electrical discharge machining process of aluminium metal matrix composites (AMMCs). Keywords- EDM (Electrical discharge machining), aluminium metal matrix composite (AMMC). *** MODELLING OF SURFACE ROUGHNESS IN WEDM FOR HSLA USING RESPONSE SURFACE METHODOLOGY 1 2 Neeraj Sharma *, Kamal Jangra 1 2 Research Scholar, Assistant Professor Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad, India, 121006 *Corresponding author: neeraj.sharma@live.com Wire electric discharge machining (WEDM) is a spark erosion machining process to cut very hard conductive materials with the help of a wire electrode. High strength low alloy steel (HSLA) is a hard alloy with high hardness and wear resisting property. The purpose of this study is to investigate the effect of parameters on total surface roughness for WEDM using HSLA as work-piece. HSLA used in cars, trucks, cranes, bridges, roller coasters and other structures that are designed to handle large amounts of stress. It is found that total surface roughness (Rz) increases with increase in pulse on time, while it decreases with decrease in pulse off time, peak current, servo voltage and wire tension. In this research paper, the Response Surface Methodology (RSM) is used to formulate a mathematical model which correlates the independent process parameters with the desired surface roughness. The central composite rotatable design has been used to conduct the experiments. Keywords: HSLA, RSM, total surface roughness, WEDM. *** 23 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 E-MANUFACTURING CONCEPT: A REVIEW 1 2 Naveen Virmani , Rajeev Saha Department of Mechanical Engineering 1 Satyug Darshan Technical Campus, Faridabad (Haryana)naveen_virmani2007@yahoo.com 2 YMCA University of Science and Technology, Faridabad (Haryana)rajeevsaha@gmail.com E-Manufacturing refers to the use of internet and web based applications to control production. Now-a-days, there is a challenge before manufacturing companies to make product on the fly that will attract new customer while retaining old customers also. Today the customer wants to get quality product and service without delay. Enterprises are integrating the e- manufacturing concept within their manufacturing facilities to harness the profits. *** INVESTIGATION OF THE EFFECT OF PROCESS PARAMETERS ON SURFACE ROUGHNESS IN WIRE ELECTRIC DISCHARGE MACHINING OF EN31 TOOL STEEL 1 2 3 Dharmender , Rajeev Kumar and Anmol Bhatia 1 Research Scholar, YMCA University of Science & Technology, Faridabad (s.dharmender@gmail.com) 2 Assistant Professor, IIMT College of Engineering, Greater Noida (lovelyrajeev@gmail.com) 3 Sr.Lecturer, Echelon Institute of Technology, Faridabad (anmolbhatia_fbd@yahoo.com) Modernization of mechanical industry has lead to the increase in demand for hard and tough materials and thus various non traditional methods have been developed in order to machine such hard and tough materials. Wire Electric discharge machine is one of the most commonly used machine which is employed in machining of conductive metals of any hardness or that are difficult or impossible to cut with traditional methods. WEDM is one of the most popular machining methods in present industry which specializes in cutting complex shapes or geometries. The literature survey has revealed that very less work has been done in order to achieve optimal levels of process parameters for Tool Steel-En31 using Brass wire electrode. This paper deals with the study the effect of different process parameters viz. peak current, pulse on time, pulse off time, Wire Tension on the response variable- Surface roughness using Brass wire electrode (0.25 mm diameter). Taguchi design methodology has been chosen for design of experiment and L9 orthogonal array has been selected for present study. In this study MINITAB software was used to find the effect of each parameter on response characteristic and to predict the setting of control parameters. ANNOVA and main effect plot have been used to find the significant process parameters and their effect on the response variables. The predicted optimal value of Surface Roughness is further verified by confirmation experiments. *** FLEXIBLE MANUFACTURING SYSTEMS: RECENT DEVELOPMENT AND TRENDS Neeraj Lamba Assistant professor, Shri Ram College of Engineering And Management Palwal nlamba33@gmail.com Implementing Flexible Manufacturing Systems (FMS) has been motivated by the desired to respond more rapidly to dynamic changes both in demand and in product mix. There have been several successful implementation and the resulting improvements to product flow have been considerable. This paper describes the present development and trends of FMS. In this work attempts for defining the FMS, motivation for pursuing FMS, examples of FMS, implementation rate of FMS is investigated. The evidence suggests that in spite of a high degree of promise from FMS, the growth rate of FMS implementations is surprising low. The major reasons for this technical, cost and justification problems – are discussed and the main research/development issues arising are described. Finally, the trend in Flexible manufacturing Systems towards a 24 Department of Mechanical Engineering, YMCA University of Science and Technology, Faridabad
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