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Courses » Mechanics of Machining

Mechanics of Machining

ABOUT THE COURSE:

Machining is a metal removal process, which can be accomplished by applying force on raw material by means of a cutting tool. This course aims at explaining the physics of the cutting process. The course will contain discussion of statics, kinematics and kinetics of the cutting process. Experimental findings relevant to mechanics of the process will also be discussed. The course will also include introductory discussion on non-traditional machining processes.

Important For Certification/Credit Transfer:

Weekly Assignments and Discussion Forum can be accessed ONLY by enrolling here

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Note: Content is Free!

All content including discussion forum and assignments, is free


Final Exam (in-person, invigilated, currently conducted in India) is mandatory for Certification and has INR Rs. 1100 as exam fee.


INTENDED AUDIENCE: UG and PG students of Mechanical/Production/Manufacturing

CORE/ELECTIVE: Can be core as well as elective.

UG/PG: UG: Third year, final year, PG: First year ME,Ph.D. can also take it.

PREREQUISITES: Strength/Mechanics of Material and Materials Science at UG level

INDUSTRY SUPPORT: Bharat Heavy Electricals Limited (BHEL), Hindustan Aeronautics Limited (HAL), Defense Research and Development Organization (DRDO), Die manufacturing industries, Automobile Industries, Machine Tool Industries, Precision medical equipment manufacturing industries.

3059 students have enrolled already!!

ABOUT THE INSTRUCTOR:

 

Dr. Uday Shanker Dixit received B.E. degree in Mechanical Engineering from erstwhile University of Roorkee (now Indian Institute of Technology Roorkee) in 1987,  M.Tech. degree in Mechanical Engineering from Indian Institute of Technology Kanpur in 1993, and  Ph.D. in Mechanical Engineering from IIT Kanpur in 1998. He has worked in two industries— HMT, Pinjore and INDOMAG Steel Technology, New Delhi, where his main responsibility was designing various machines. Dr. Dixit joined the Department of Mechanical Engineering, Indian Institute of Technology Guwahati, in 1998, where he is currently a Professor. He was also the Officiating Director of Central Institute of Technology, Kokrajhar from February 2014 to May 2015. Dr. Dixit is actively engaged in research in various areas of design and manufacturing since last 30 years. Most of his research work is focused on Modelling of Manufacturing Processes and involves finite element analysis of elastoplastic problems. He has authored/co-authored 100 journal papers, 99 conference papers, 20 book chapters and 6 books in mechanical engineering. He has also co-edited 3 books related to manufacturing. He has guest-edited 10 special issues of journals. Presently he is an Associate Editor of the Journal of Institution of Engineers (India), Series C and Regional Editor Asia of International Journal of Mechatronics and Manufacturing Systems. He has guided 9 doctoral and 43 masters’ students. Dr. Dixit has investigated a number of sponsored projects and developed several courses including a NPTEL course on Engineering Mechanics.

COURSE LAYOUT:

Week 1  :  Deformation of metals,Mechanism of plastic deformation,Machining processes: Single edge tool,types of chips
Week 2  :  Tool geometry: single point cutting tool specifications
                 Tool specifications, conversion of tool angles, Multi-point cutting tools
                 Mechanics of orthogonal cutting, force relationships
Week 3  : Determination of stress, strain, and strain rate
 Measurement of shear angle
 Other analysis for force relationships
Week 4  :  Mechanics of oblique cutting
 Measurement of cutting forces
Week 5  : Thermal aspects of machining: Temperatures in orthogonal cutting
Tool wear and tool life and tool life equations
 Economics in machining  
Week 6  : Practical machining operations: Turning and shaping & planning operation
Practical machining operations: milling and drilling
Grinding of metals and mechanics of grinding process 
Week 7  : Abrasive machining and finishing operations
CNC machines and CNC programming  
Week 8  :  Introduction to advanced machining processes

SUGGESTED READING MATERIALS:

1. G K Lal, Introduction to Machining Science, 3rd edition, New Age International Pvt Ltd., 2007. 
2. A Ghosh and A K Mallik, Manufacturing Science, 2nd edition, Affiliated East-West Press Pvt. Ltd., 1986.
3. G Boothroyd and W. A. Knight, Fundamentals of Machining and Machine Tools, CRC-Taylor and Francis, 2006.
4. V K Jain, Advanced Machining Processes, Allied Publishers, 2009.
5. P M Dixit and U S Dixit, Modeling of Metal Forming and Machining Processes: By Finite Element and Soft Computing Methods, Springer, 2010.
6. A Bhattacharya, Metal Cutting: Theory and Practice, New Central Book Agency, 2012.
CERTIFICATION EXAM :
  • The exam is optional for a fee.
  • Date and Time of Exam: October 7 (Sunday)
  • Time of Exam: Morning session 9am to 12 noon; Afternoon session: 2pm to 5pm
  • Exam for this course will be available in both morning & afternoon sessions.
  • Registration url: Announcements will be made when the registration form is open for registrations.
  • The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published.
CERTIFICATION:
  • Final score will be calculated as : 25% assignment score + 75% final exam score
  • 25% assignment score is calculated as 25% of average of  Best 6 out of 8 assignments
  • E-Certificate will be given to those who register and write the exam and score greater than or equal to 40% final score. Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Guwahati.It will be e-verifiable at nptel.ac.in/noc.