Laser Based Manufacturing

By Prof. Shrikrishna N. Joshi   |   IIT Guwahati
Learners enrolled: 1602
About the Course:
This is a basic course on applications of laser technology in manufacturing. The subject laser technology has a very wide range of applications in the product development, manufacturing, surface engineering, and instrumentation. The course emphasizes the fundamental concepts of the laser technology viz. principle of working, characteristics, types, monitoring and control. There is a comprehensive coverage of physical concepts, process characteristics, mathematical formulations along with examples of various laser based manufacturing processes such as of laser machining (cutting), laser forming, laser welding, laser surface treatment and laser based additive manufacturing. There is a state-of-the-art description of newer and advanced applications of the lasers in industry. This course will be very useful to the students, practicing engineers and researchers. After completion of the course, the students will have a strong foundation on laser technology and will be able to apply the basic principles, process characteristics in the practical scenarios.

INTENDED AUDIENCE: B. Tech., M. Tech. and Ph D students of Mechanical / Manufacturing / Production/Industrial Engineering, practicing engineers in small and medium scale industry and tool rooms

PREREQUISITES: Should have knowledge of fundamental manufacturing processes. 

INDUSTRY SUPPORT: All Small Scale Industries (SSIs). Companies and research labs of automotive; aerospace; defense; and MEMS sectors. Tool Rooms.
Course Status : Completed
Course Type : Elective
Duration : 8 weeks
Category :
  • Mechanical Engineering
Credit Points : 2
Level : Undergraduate/Postgraduate
Start Date : 22 Aug 2022
End Date : 14 Oct 2022
Enrollment Ends : 22 Aug 2022
Exam Date : 30 Oct 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:Introduction
Week 2:Laser cutting (machining)
Week 3:Laser welding
Week 4:Laser Bending or Forming
Week 5:Laser surface treatment
Week 6:Additive manufacturing
Week 7:Lasers for automation and sensing
Week 8:Advanced applications

Books and references

  1. Steen, W. M., Laser Material Processing, Springer-Verlag, London, 2005.
  2. Dahotre, N. and Samant, A., Laser Machining of Advanced Materials, CRC Press, London, 2015.
  3. Joshi, S. N. and Dixit, U. S., Laser Based Manufacturing, Springer India, 2015.
  4. Sugioka, K., Meunier, M., and Piqué, A., Laser Precision Microfabrication, Springer-Verlag, Berlin, Heidelberg, 2010.
  5. Ion, J. C., Laser Processing of Engineering Materials, Elsevier, 2005

Instructor bio

Prof. Shrikrishna N. Joshi

IIT Guwahati
Dr. Shrikrishna N. Joshi has completed his doctoral studies in the area of Intelligent process modeling and optimization of electric discharge machining process from IIT Bombay, Mumbai, India in 2009. Currently, he is working as an Associate Professor in the Department of Mechanical Engineering at Indian Institute of Technology Guwahati, India. He was a visiting faculty at the Asian Institute of Technology (AIT), Bangkok, Thailand in 2015. His research interests include mechatronics and manufacturing automation, CAD/CAM, advanced and precision manufacturing processes with a focus on applications of laser in manufacturing, thin-wall machining and single point diamond turning. Four PhD students have been graduated under his supervision and right now, about 7 students are working on cutting-edge research problems. He has published about 60 research papers and tweleve book chapters in refereed international journals and conferences. He has edited two books on "Laser-based manufacturing" and a book on Advances in Computational Methods in Manufacturing with Springer Nature. He has carried out sponsored and consultancy research work of about INR ten millions. The consultancy work was aimed at "Mechanization of Food Grain Handling Operations at FCI Godowns". Dr. Joshi has also developed a web course on Mechatronics and Manufacturing Automation under the scheme of NPTEL of MHRD, Govt. of India. The course was very well appreciated among the engineering industry, academia and research community. He has conducted this course at IIT Guwahati four times for B.Tech final year, M.Tech. and Ph.D students.

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: 30 October 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 6 assignments out of the total 8 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 Guwahati .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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