Introduction To Mechanical Micro Machining

By Prof. Ajay M Sidpara   |   IIT Kharagpur
Learners enrolled: 1053
The emergence of miniature and micro products / components has increased the demand of the production of micro components with feature size from a few millimeters to tens of micrometers. Mechanical micro machining is one of the key technologies to enable the realization of high accuracy complex micro products made from a variety of engineering materials. Mechanical micro machining is capable to machine metals, polymers, and ceramics in very less time as compared to lithographic processes and other micro machining processes such as EDM, ECM, LBM, etc. As a result, it has found strong base in a wide array of practical applications. 

Though the machine for micro cuttings are kinematically similar to conventional machines, there are many differences in terms of process mechanics, machine components, etc. Hence, understanding of machining at micro scale is very important to process any material to the desired dimensions.

INTENDED AUDIENCE  : Mechanical,Manufacturing,Production.
PRE - REQUISITES :Conventional machining processes (lathe, milling, drilling, etc.)
INDUSTRY SUPPORT : Research institutes: Bhabha Atomic Research Center (BARC), Mumbai; Central Mechanical Engineering Research Institute (CMERI), Durgapur; Central Manufacturing Technology Institute (CMTI), Bangalore
Course Status : Completed
Course Type : Elective
Duration : 12 weeks
Category :
  • Mechanical Engineering
  • Manufacturing Processes and Technology
Credit Points : 3
Level : Undergraduate/Postgraduate
Start Date : 24 Jan 2022
End Date : 15 Apr 2022
Enrollment Ends : 07 Feb 2022
Exam Date : 24 Apr 2022 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1:  Experimental observations and theoretical prediction of constituents of an atom 
Week 2:  Scaling law   
Week 3:  Mechanical micro machining (process, mechanism) 
Week 4:  Burr formation, surface roughness, built up edge 
Week 5:  Cutting fluid, run out, grain size 
Week 6:  Micro machine structure - I 
Week 7:  Micro machine structure - II 
Week 8:  Fabrication of micro cutting tools 
Week 9:  Miniature machine tools 
Week 10: Diamond Turning (process, types, mechanism, applications) 
Week 11:Metrology for micro machining 
Week 12: Sensor integration for process monitoring 

Books and references

1. Micro-Cutting: Fundamentals and Applications by Cheng, Huo, Wiley Publication 
2. Introduction to Micromachining 2nd Edition, Ed. V. K. Jain, Narosa Publishing House, ISBN: 978-81-7319-915-8. 
3. Precision Manufacturing by David Dornfeld and Dae-Eun Lee, Springer US 
4. Research papers 

Instructor bio

Prof. Ajay M Sidpara

IIT Kharagpur
Ajay M Sidpara  is a faculty in Mechanical Engineering Department at IIT Kharagpur. His research interests are on surface finishing at nano scale and micro machining for different applications such as optics, biomedical, micro fluidics, etc. He has extensively worked on development of different tooling for nanofinishing, micro machining and improvement of process efficiency using different strategies. He has published 26 journal papers, 12 book chapters, and many conference papers related to nanofinishing and micro machining. 3 patents are filed related to his research work. He has received funding from SERB, BRNS and GE Power India. He has received Gandhian Young Technological Innovation Award 2013, Young Engineers Award 2015 from IE (India), and CSR innovation award from GE Power India Limited (erstwhile ALSTOM India Limited). He is a reviewer of more than 20 international journals and also delivered around 20 invited talks in the institutes, and research labs.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 24 April 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
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. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

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 Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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