7/28/2019 Ucm Anna Coimbatore

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UNCONVENTIONAL MACHINING PROCESSES 3 0 0 100 3

UNIT I INTRODUCTION 9

Need for non-traditional machining methods-Classification of modern machining processes considerations in process selection. Materials. Applications. Ultrasonic machining Elementsof the process, mechanics of metal removal process parameters, economic considerations,

applications and limitations, recent development

UNIT II MECHANICAL PROCESSES 9

Abrasive jet machining, Water jet machining and abrasive water jet machining Basic principles,equipments, process variables, mechanics of metal removal, MRR, application and limitations.Ultrasonic Machining. (AJ M, WJ M and USM). Working Principles equipment used Processparameters MRR-Variation in techniques used Applications

UNIT III ELECTRO CHEMICAL PROCESSES 9

Fundamentals of electro chemical machining, electrochemical grinding, electro chemicalhoning and deburring process, metal removal rate in ECM, Tool design, Surface finish andaccuracy economic aspects of ECM Simple problems for estimation of metal removal rate.Fundamentals of chemical, machining, advantages and applications.

UNIT IV THERMAL METAL REMOVAL PROCESSES -I 9

General Principle and applications of Electric Discharge Machining, Electric DischargeGrinding and electric discharge wire cutting processes Power circuits for EDM, Mechanics of metal removal in EDM, P rocess parameters, selection of tool electrode and dielectric fluids,methods surface finish and machining accuracy, characteristics of spark eroded surface andmachine tool selection. Wire EDM, principle, applications.

UNIT V THERMAL METAL REMOVAL PROCESSES -II 9

Generation and control of electron beam for machining, theory of electron beam machining,comparison of thermal and non-thermal processes General Principle and application of laserbeam machining thermal features, cutting speed and accuracy of cut. Application of plasmafor machining, metal removal mechanism, process parameters, accuracy and surface finishand other applications of plasma in manufacturing industries. Chemical machining-principle-maskants etchants- applications. Magnetic abrasive finishing, Abrasive flow finishing.

LECTURE : 45

TUTORIAL : -

TOTAL : 45

REFERENCES:

1. Vijay.K. J ain Advanced Machining Processes Allied Publishers Pvt. Ltd., New Delhi(2002) ISBN 81-7764-294-4.

2. Benedict. G.F. Nontraditional Manufacturing Processes Marcel Dekker Inc., New York(1987)

3. Pandey P.C. and Shan H.S. Modern Machining Processes Tata McGraw-Hill, New Delhi(1980).

4. Mc Geough, Advanced Methods of Machining Chapman and Hall, London (1998)