Journal of Experimental & Applied Mechanics (JoEAM) ISSN: 2321-516X
Jan - April 2014
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Journal of Experimental & Applied Mechanics (ISSN: 2321–516X) Focus and Scope Covers † Fluid Mechanics † Analytical Mechanics † Computational Mechanics † Solid Mechanics † Continuum Mechanics †
Thermomechanics
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Director's Desk
STM JOURNALS
I take the privilege to present the hard copy compilation for the [Volume 5 Issue (1)] of Journal of Experimental & Applied Mechanics. The intension of JoEAM is to create an atmosphere that stimulates creativeness, research and growth in the area of Experimental & Applied Mechanics. The development and growth of the mankind is the consequence of brilliant Research done by eminent Scientists and Engineers in every field. JoEAM provides an outlet for Research findings and reviews in areas of Experimental & Applied Mechanics found to be relevant for National and International recent developments & research initiative. The aim and scope of the Journal is to provide an academic medium and an important reference for the advancement and dissemination of Research results that support high level learning, teaching and research in the domain of Experimental & Applied Mechanics. Finally, I express my sincere gratitude and thanks to our Editorial/ Reviewer board and Authors for their continued support and invaluable contributions and suggestions in the form of authoring writeups/ reviewing and providing constructive comments for the advancement of the journals. With regards to their due continuous support and co-operation, we have been able to publish quality Research/Reviews findings for our customers base. I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.
Dr. Archana Mehrotra Director STM Journals
Journal of Experimental & Applied Mechanics
Contents
1. A Portable Induction Hardening System with New Dynamic Response based Characterization of Hardened Samples Mohan K. Misra, B Bhattacharya, Onkar Singh, A Chatterjee
1
2. Experimental Study and Simulation on Microwave Drilling of Metals and Glasses Titto John George, Apurbba Kumar Sharma, Pradeep Kumar
10
Journal of Experimental & Applied Mechanics ISSN: 2321-516X Volume 5, Issue 1 www.stmjournals.com
A Portable Induction Hardening System with New Dynamic Response based Characterization of Hardened Samples Mohan K. Misra1, B Bhattacharya2*, Onkar Singh3, A Chatterjee2 1
PhD Scholar, U P Technical University Lucknow, India Mechanical Engineering Department, Indian Institute of Technology, Kanpur, India 3 Mechanical Engineering Department, Harcourt Butler Technological Institute, Kanpur, India 2
Abstract In this paper we have first discussed about the requirement of a portable induction hardening system which can be easily tailored for variable job-work applications. Such a system is first developed in the laboratory and successfully utilised for hardening steel pins made of various alloys. Later, it is shown that the dynamic response of such a system can be used for hardness estimation as these are sensitive towards the change of the depth of case hardening of a sample. A simple numerical model is also developed to compare the results with experimental observations. The new process is envisaged to successfully substitute the process of destructive testing of steel samples and save material wastage in industrial applications.
Keywords: Induction hardening, NDE, Dynamic Response, Laser Doppler vibrometer, Modal Analysis *Author for Correspondence E-mail: bishakh@iitk.ac.in, emkay@iitk.ac.in
JoEAM (2014)Š STM Journals 2014. All Rights Reserved
Journal of Experimental & Applied Mechanics ISSN: 2321-516X Volume 5, Issue 1 www.stmjournals.com
Experimental Study and Simulation on Microwave Drilling of Metals and Glasses Titto John George1*, Apurbba Kumar Sharma2, Pradeep Kumar2 1
Department of Mechanical Engineering, Viswajyothi College of Engineering and Technology, Muvattupuzha, Kerala, India 2 Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, India
Abstract Microwave heating is being developed to apply for a variety of engineering applications in the last few years due to some special advantages of using microwave. This paper presents a study on attempting microwave drilling of materials especially metals, as metal processing with microwave was a difficult task due to reflection of microwaves by metals at room temperature. A special fixture was developed to study the microwave drilling on metals and non metals and tests were conducted on Aluminium, Copper, Mild steel and Borosilicate glass inside a domestic microwave oven. Metals were drilled with microwave hybrid heating and glass was drilled with plasma generated through microwave. The specimens were characterised through SEM and simulations were done on microwave heating of metals and glass in a similar environment to drilling.
Keywords: Microwaves, material processing, drilling, plasma, simulation
JoEAM (2014)Š STM Journals 2014. All Rights Reserved