ME6004 syllabus is here.This post also covers the Lecture notes (Prepared By Mr.S.Senthil kumar, AP/Mech of the Unconventional Machining processes(Elective Paper for semester VI) Unit 1 Introduction. Take for your reference and try to get more marks in university examinations.
ANNA UNIVERSITY CHENNAI
REGULATION 2013
DEPARTMENT OF MECHANICAL ENGINEERING
ME6004 UNCONVENTIONAL MACHINING PROCESSES
UNIT 1 INTRODUCTION
INTRODUCTION
Conventional machining process
Metal is removed by means of tool which is harder than work piece and they both are in contact with each other.
Demerits of conventional machining process
(i)Disposal and recycling of the chips are difficult and tedious process
(ii) Large cutting forces are involved in this process
NEED FOR UCM
Unconventional manufacturing process
Unconventional
machining process
Unconventional
forming process
Need for unconventional machining process
(i)Harder
and difficult to machine materials
(ii)Can be machined easily and precisely
CLASSIFICATION OF UCM
Classification
of UCM
(i)Based on type of energy required to shape the material
•Thermal
energy methods
•Electrical
energy methods
•Electro chemical
energy methods
•Chemical
energy methods
•Mechanical energy methods
(ii)Based on mechanisms involved
•erosion
•Ionic dissolution
•vaporization
(iii) Based on the source of energy
required for material removal
•Hydro static
pressure
•High current
density
•High voltage
•Ionized material
(iv)Based on medium of transfer of
energies
•High voltage
particles
•Electrolyte
•Electron
•Hot gases
Process Selection
Points to be
considered for correct selection of UCM are
(i)Physical
parameters
(ii)Shapes
to be machined
(iii)Process
capability or machining characteristics
(iv)Economic consideration
Advantages
of UCM
(i)Increases
productivity
(ii)Reduces
no. of rejected components
(iii)Close
tolerance is possible
(iv)Toll
material need not be harder than work piece
(v)Machined surface does not have
residual stress
Limitations
of UCM
(i)More
expensive
(ii)Manufacturing cost is slow
Here the syllabus of the subject Unconventional Machining Processes.
ME6004 UNCONVENTIONAL MACHINING PROCESSES
OBJECTIVES:
· To
learn about various unconventional machining processes, the various process
parameters
and their influence on performance and their applications
UNIT I INTRODUCTION
Unconventional machining Process – Need – classification –
Brief overview .
UNIT II MECHANICAL ENERGY BASED
PROCESSES
Abrasive Jet Machining – Water Jet Machining – Abrasive
Water Jet Machining - Ultrasonic
Machining.(AJM, WJM, AWJM and USM). Working Principles –
equipment used – Process
parameters – MRR- Applications.
UNIT III ELECTRICAL ENERGY BASED
PROCESSES
Electric Discharge Machining (EDM)- working
Principle-equipments-Process Parameters-Surface Finish and MRR- electrode /
Tool – Power and control Circuits-Tool Wear – Dielectric – Flushing – Wire cut
EDM – Applications.
UNIT IV CHEMICAL AND ELECTRO-CHEMICAL
ENERGY BASED PROCESSES
Chemical machining and Electro-Chemical machining (CHM
and ECM)-Etchants – Maskant -
techniques of applying maskants - Process Parameters –
Surface finish and MRR-Applications.
Principles of ECM- equipments-Surface Roughness and MRR
Electrical circuit-Process Parameters- ECG and ECH - Applications.
UNIT V THERMAL ENERGY BASED PROCESSES
Laser Beam machining and drilling (LBM), plasma Arc
machining (PAM) and Electron Beam
Machining (EBM). Principles – Equipment –Types - Beam
control techniques – Applications.
TOTAL: 45 PERIODS
OUTCOMES:
· Upon
completion of this course, the students can able to demonstrate different
unconventional
machining processes and know the influence of difference
process parameters on the
performance and their applications.
TEXT BOOKS:
1. Vijay.K. Jain “Advanced Machining Processes” Allied
Publishers Pvt. Ltd., New Delhi, 2007
2. Pandey P.C. and Shan H.S. “Modern Machining Processes”
Tata McGraw-Hill, New Delhi,
2007.
REFERENCES:
1. Benedict. G.F. “Nontraditional Manufacturing Processes”,
Marcel Dekker Inc., New York,
1987.
2. Mc Geough, “Advanced Methods of Machining”, Chapman
and Hall, London, 1998.
3. Paul De Garmo, J.T.Black, and Ronald.A.Kohser, “Material
and Processes in Manufacturing”
Prentice Hall of India Pvt.
Ltd., 8thEdition, New Delhi , 2001For more study materials visit annaunivstudymaterials.blogspot.com
