STM JOURNALSScientific Technical Medical

Jan - April 2014

Journal of Experimental

& Applied Mechanics

ISSN: 2321-516X

(JoEAM)

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Journal of Experimental & Applied Mechanics

(ISSN: 2321–516X)

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Industrial Tribology Machine Dynamics & Maintenance

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Indian Institute of Technology Delhi, India

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Alternative Energy Technology Laboratory,

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Birla Institute of Technology & Science, Pilani Rajasthan, India.

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Pune, India.

Dr. Hardev Singh VirkProfessor Emeritus, Eternal

University, Baru Sahib, India.

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Engineering department, PEC University of Technology,

Chandigarh, India.

STM Journal (s) Advisory Board & Editorial Board

Dr. Yuwaraj Marotrao GhugalDepartment of Applied Mechanics,

Govt. College of Engineering, Vidya Nagar, Karad, District Satara -

415124, Maharashtra, India.

Dr. Raghu Vasu PrakashIndian Institute of Technology, Madras

Chennai - 600 036, India, India.

Dr. Abdul A. KhanAmerican Society of Civil Engineers Member,International Association of

Hydro-Environmental Research, United States.

Dr. Arun Kumar GuptaAssociate Professor,Mathematics

Department, MS College, Saharanpur, U.P., INDIA.

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.

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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

Director's Desk

STM JOURNALS

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

ContentsJournal of Experimental & Applied Mechanics

JoEAM (2014)© STM Journals 2014. All Rights Reserved

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 Bhattacharya

2*, Onkar Singh3, A Chatterjee

2

1PhD Scholar, U P Technical University Lucknow, India

2Mechanical Engineering Department, Indian Institute of Technology, Kanpur, India

3Mechanical Engineering Department, Harcourt Butler Technological Institute, Kanpur, India

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)© 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 Sharma

2, Pradeep Kumar

2

1Department of Mechanical Engineering, Viswajyothi College of Engineering and Technology,

Muvattupuzha, Kerala, India 2Department 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