Dr. Bipul Das

Academic Qualification

Ph.D. (Indian Institute of Technology Guwahati, 2017)

B. E. (Assam Engineering College, 2010)

Areas of Interest & Research

• Condition Monitoring
• Advanced Welding process
• Friction Stir Welding
• Thin Layer Material Deposition
• Laser Material Processing
• Additive Manufacturing
• Advanced Machining Processes

Patent (Filed/Granted)

1. A Manually Operative System for Manufacturing Bottle Using Bamboo Powder (Granted 31.05.2023, Grant No.: 2023/02617), South African Patent, International, Inventors: Bipul Das, Rajeev Nayan Gupta, Yogesh Singh, Jasper Ramon, Devjani Devi, Bedanta Kumar Saharia.

2. StirCart: Powder Filled Cartridge Based Stirring Tool for Additive Manufacturing Applications (Applied 2023), South African Patent, International, Inventors: Bipul Das, Rajeev Nayan Gupta, Yogesh Singh, Prosun Mandal, Purushottam Kumar Singh, Sunil Kumar D, Santosh Kumar, Jasper Ramon.

3. Tool for the solid-state material deposition (Granted 29/02/2024, Grant No.: 403526-001), Indian Design Patent, International, Inventors: Bipul Das, Bratin Biswas, Deepjyoti Medhi, Praveen Kumar, Ashim Jyoti Chutia, Sonali Nag

4. Apparatus for friction stir processing of materials (Applied 2024, Application Number: 411003-001), Indian Design Patent, International, Inventors: Bipul Das, Dipankar Bhanja Rajarshi Preetom Bora, Suraj Jyoti Saikia, Ashimjyoti Chutia, Praveen Kumar, Sonali Nag

Research Publications

International Journal

26. Dhiraj Raj, Bipul Das, Saikat Ranjan Maity, Numerical Simulation of Temperature Profile during Laser Cladding of Nickel Powder for In-Situ Repairing, Proceedings of IMechE: Part C 2024, (Accepted)

25. Pohor Patric Debbarma, Bipul Das, State of the art survey of literature for finding an effective solution to mitigate the exit hole defect in friction stir welded samples, IMechE Part E: Journal of Process Mechanical Engineering, 2024 (Accepted)

24. Dhiraj Raj, Saikat Ranjan Maity, Bipul Das, Optimization of process parameters of laser cladding on AISI 410 using MEREC integrated MABAC method, Arabian Journal of Science and Engineering, 2024 (Accepted)

23. Mehdi Mehtab Mirad, Bipul Das, Machine learning coupled with acoustic emission signal features for tool wear estimation during ultrasonic machining of Inconel 718, Machining Science and Technology, 2023 (Accepted)

22. Bidisha Chetia, Sumita Debbarma, Bipul Das, An experimental investigation of hydrogen-enriched and nanoparticle blended waste cooking biodiesel on diesel engine, International Journal of Hydrogen Energy, 2023 (Accepted).

21. Angita Kar, Sarfaraz Hussain, Ashad Seikh, Aatish Kumar, Bipul Das, Effect of plate placement on nugget shape in joining dissimilar thickness automotive steel thin sheets using resistance spot welding, Manufacturing Technology Today, 2023, 22(1), DOI: https://doi.org/10.58368/MTT.22.1.2023.13-19.

20. Jasper Ramon, Manish Pal, Bipul Das (2023), Investigation of induction heating process for selective melting of aluminum alloy for the repair of exit hole defect in friction stir welding process, Arabian Journal of Science and Engineering, (Accepted, in press), DOI: https://doi.org/10.1007/s13369-023-07725-9

19. Bipul Das, Jasper Ramon (2022) Sensor fusion model for weld quality monitoring in friction stir welding process using machine learning technique, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering (Accepted)

18. Mehdi Mehtab Mirad, Bipul Das (2022) Defect modelling and tool selection for ultrasonic machining process using finite element analysis, International Journal of Precision Engineering and Manufacturing (Accepted) 

17. Bipul Das, Aman Dwivedi, Mehdi Mehtab Mirad, (2022), “Identification of defective weld and quality monitoring in manual metal arc welding process using surface level image features”. Welding International, 36(3), 144-157.

16. Mehdi Mehtab Mirad, Bipul Das (2021). “Horn failure prediction in presence of internal defect in ultrasonic machining process through numerical investigation”. International Journal on Interactive Design and Manufacturing, 16, 987-99610.

15. Mehdi Mehtab Mirad, Bipul Das, (2021). “A critical review of the state of the art literature in the monitoring of ultrasonic machining process and tool failure prediction”. Engineering Failure Analysis, 130, 1-18.

14. Dhiraj Raj, Saikat Ranjan Maity, Bipul Das, (2021). “State of the art review on laser cladding process as an in-situ repair technique”. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 236(3), 1194-1215.

13. Prakash Kumar Sahu, Sukhomay Pal, Bipul Das, Qingyu Shi, Fabrication and effect of Mg–Zn solid solution via Zn foil interlayer alloying in FSW process of magnesium alloy, Archives of Civil and Mechanical Engineering, 20(137), 2020, IF:4.369, International Journal

12. Prakash Kumar Sahu, Nikhil P Vasudevan, Bipul Das, Sukhomay Pal, Assessment of Self Reacting Bobbin Tool Friction Stir Welding for Joining AZ31 Magnesium Alloy at Inert Gas Environment, Journal of Magnesium and Alloys, 7(4), 661-671, 2019, IF: 10.088, International

11. Manabendra Das, Ashish Meena, Bipul Das, Sensor fusion model for defect identification in friction stir welding process, Journal of Physics (Conference Series), 1240, 2019, IF: NA, International

10. Bipul Das, Swarup Bag, Sukhomay Pal, Probing defects in friction stir welding process using temperature profile, Sadhana, 44, 79, 2019, IF: 1.188, International

9. Bipul Das, Sukhomay Pal, Swarup Bag, Monitoring of friction stir welding process using main spindle motor current. Journal of The Institution of Engineers (India): Series C, 99(6), 711-716, 2018, IF: NA, International

8. Bipul Das, Sukhomay Pal, Swarup Bag, Torque based defect detection and weld quality modelling in friction stir welding process, Journal of Manufacturing Processes, 27, 8-17, 2017, IF: 5.010, International

7. Bipul Das, Sukhomay Pal, Swarup Bag, Design and development of force and torque measurement setup for real time monitoring of friction stir welding process, Measurement, 103, 186-198, 2017, IF: 3.927, International

6. Bipul Das, Sukhomay Pal, Swarup Bag, Weld quality prediction in friction stir welding using wavelet analysis. International Journal of Advanced Manufacturing Technology, 89, 711-725, 2017, IF: 3.266, International

5. Bipul Das, Swarup Bag, Sukhomay Pal, Probing weld quality monitoring in friction stir welding through characterization of signals by fractal theory. Journal of Mechanical Science and Technology, 31(5), 2459-2465, 2017, IF: 1.734, International

4. Bipul Das, Sukhomay Pal, Swarup Bag, A combined wavelet packet and Hilbert-Huang transform for defect detection and modelling of weld strength in friction stir welding process. Journal of Manufacturing Processes, 22, 260-268, 2016, IF: 5.010, International

3. Bipul Das, Sukhomay Pal, Swarup Bag, Monitoring of friction stir welding process using weld image information. Science and Technology of Welding and Joining, 21(4), 317-324, 2016, IF: 4.564, International

2. Bipul Das, Sukhomay Pal, Swarup Bag, Defect detection in friction stir welding process through characterization of signals by fractal dimension. Manufacturing Letters, 7, 6-10, 2016, IF: NA, International

1. Bipul Das, Sukhomay Pal, Swarup Bag, Defect detection in friction stir welding process using signal information and fractal theory. Procedia Engineering, 144, 172-178, 2016, IF: NA, International

International Conference

18. Pohor Patric Debbarma, Praveen Kumar, Bipul Das, Numerical modeling of laser material deposition method of AA1100 billet for in-situ repair of an exit hole in friction stir welding, 5th International Conference on Recent Advancements in Mechanical Engineering, National Institute of Technology Silchar, India, 02-04 February 2024

17. Praveen Kumar, Vishak AP, Bipul Das, Pohor Patric Debbarma, Design and development of load member for measuring force and torque in friction stir welding process, 5th International Conference on Recent Advancements in Mechanical Engineering, National Institute of Technology Silchar, India, 02-04 February 2024

16. Ashimjyoti Chutia, Sonali Nag, Bipul Das, Phase transformation modelling during the material deposition using friction stir additive manufacturing, 5th International Conference on Recent Advancements in Mechanical Engineering, National Institute of Technology Silchar, India, 02-04 February 2024

15. Alvina Das, Debangshu Das, Bipul Das, Melting behaviour of the wire in induction heating based wire additive manufacturing, 5th International Conference on Recent Advancements in Mechanical Engineering, National Institute of Technology Silchar, India, 02-04 February 2024

14. Angita Kar, Sarfaraz Hussain, Ashad Seikh, Aatish Kumar, Bipul Das, Effect of plate placement on nugget shape in joining dissimilar thickness automotive steel thin sheets using resistance spot welding, COPEN 2022, IIT Kanpur, 12-14 December 2022

13. Mehdi Mehtab Mirad, Saka Abhijeet Rajendra, Jasper Ramon, Bipul Das, Modal and Fatigue Analysis of Ultrasonic Machining Tool for Performance Analysis, International Conference on Modelling, Simulation and Optimization, 2021, NIT Silchar, 16-18 December 2021, https://doi.org/10.1007/978-981-19-0836-1_26

12. Bipul Das, Jasper Ramon, Machine learning and real-time signal features integration for strength modelling in friction stir welding process, International Conference on Recent Advances in Manufacturing (RAM 2021), SVNIT Surat, June 10-12, 2021, 193-202, https://doi.org/10.1007/978-981-16-9952-8_19

11. Mehdi Mehtab Mirad, Bipul Das, Numerical analysis of tool material in ultrasonic machining process, International Conference on Recent Advances in Manufacturing (RAM 2021), SVNIT Surat, June 10-12, 2021, 79-87, https://doi.org/10.1007/978-981-16-9952-8_19

10. Dhiraj Raj, Saikat Ranjan Maity, Bipul Das, Investigation of temperature distribution in low power laser cladding of nickel through numerical analysis, International Conference on Recent Advancements in Mechanical Engineering (ICRAME 2021), NIT Silchar, February 7-9, 2021.

9. Mehdi Mehtab Mirad, Jiomani Talukdar, Bipul Das, Analysis of tool defect in ultrasonic machining process through numerical modelling, International Conference on Recent Advancements in Mechanical Engineering (ICRAME 2021), NIT Silchar, February 7-9, 2021.

8. Mehdi Mehtab Mirad, Sandip Mandal, Bipul Das, Fabrication and evaluation of mechanical properties of stir cast AL6061 fly ash composite, International Conference on Recent Advancements in Mechanical Engineering (ICRAME 2021), NIT Silchar, February 7-9, 2020.8. Anirban Dutta, John Deb Barma, Bipul Das, Mathematical modelling of wire electrical discharge machining process by applying response surface analysis, International Conference on Recent Advancements in Mechanical Engineering (ICRAME 2021), NIT Silchar, February 7-9, 2020. 

7. Bipul Das, Manebendra Das, Ashish Meena, Mehdi Mehtab Mirad, Artificial intelligence based defect formation tendency prediction in friction stir welding, International Conference on Precision, Meso, Micro and Nano Engineering (COPEN 2019), IIT Indore, Deccember 12-14, 2019. (Received Best Paper Award)

6. Manabendra Das, Ashish Meena, Bipul Das, Sensor fusion model for defect identification in friction stir welding process, 2nd International Conference on New Frontiers in Engineering Science & Technology (NFEST 2019), February 18-22, 2019, NIT Kurukshetra.

5. Bipul Das, Sukhomay Pal, Swarup Bag, Weld defect identification in friction stir welding using power spectral density, International Conference on Recent Advances in Materials & Manufacturing Technologies (IMMT 2017), 28th – 29th November, 2017, Dubai.

4. Bipul Das, Sukhomay Pal, Swarup Bag, Machine vision system based monitoring approach for friction stir welding process. IEEE First International Conference on Control, Measurement and Instrumentation (CMI), 8-10 January 2016. DOI: 10.1109/CMI.2016.7413715.

3. Bipul Das, Sukhomay Pal, Swarup Bag, Wavelet transform based defect identification in friction stir welding process. 6TH International and 27TH All India Manufacturing Technology, Design and Research Conference, 16-18 December, 2016.

2. Bipul Das, Sukhomay Pal, Swarup Bag, Neurofractal modelling of weld quality in friction stir welding. 2^nd International Conference on Advances in Cutting, Welding and Surfacing (CWS), 05-07 August 2015. (Received best paper award)

1. Bipul Das, Sukhomay Pal, Swarup Bag, Monitoring of friction stir welding process through signals acquired during the welding. 5^TH International and 26TH All India Manufacturing Technology, Design and Research Conference, 12-14 December 2014.

Book Chapter

1. Dhiraj Raj, Saikat Ranjan Maity, Bipu Das, Numerical simulation for temperature distribution for low power laser clad coating of Nickel, Recent Advances in Mechanical Engineering, Springer, 2022, ISBN:978-981-19-3265-6

2. Mehdi Mehtab Mirad, Saka Abhijeet Rajendra, Jasper Ramon, Bipul Das, Modal and fatigue analysis of ultrasonic machining tool for performance analysis, Modelling, Simulation and Optimization, Springer, 2022, ISBN:978-981-19-0835-4

3. Bipul Das, Jasper Ramon, Machine learning and real-time signal features integration for strength modelling in friction stir welding process, Recent advances in manufacturing modelling and optimization, Springer, 2022, ISBN: 978-981-16-9951-1.

4. Mehdi Mehtab Mirad, Bipul Das, Numerical analysis of tool material in the ultrasonic machining process, Recent advances in manufacturing modelling and optimization, Springer, 2022, ISBN: 978-981-16-9951-1.

5. Mehdi Mehtab Mirad, Jiomani Talukdar, Bipul Das, Analysis of Tool Defect in Ultrasonic Machining Process Through Numerical Modelling, Recent Advancements in Mechanical Engineering, Springer, 2022, DOI: 10.1007/978-981-19-3266-3.

6. Dhiraj Raj, Bipul Das, Saikat Ranjan Maity, Preheating path selection through numerical analysis of laser aided direct metal deposition, Recent Advances in Mechanical Engineering, Springer, 2021.

7. Bipul Das, Design of mixed mode dryer for spices for rural applications, Advances in Science and Technology, Vol. 1, Eds. B Kakati, D Bora, I-Manage Publications, 2019.

8. Bipul Das, Sukhomay Pal, Swarup Bag, Monitoring weld quality in friction stir welding based on spindle speed and motor current signals. Advances in Material Forming and Joining, Editors: R. G. Narayanan and U. S. Dixit, Springer India, 2015. ISBN 978-81-322-2355-9

Externally Funded Research Projects

1. Design and development of induction welding system for in situ repair of exit hole defect in friction stir welded sample, DST-SERB (SRG), 2 years, 28.48 Lakh, PI: Dr. Bipul Das (Completed)

2. Development of bamboo bottles and containers using processed bamboo dust on micro and medium scale, Ministry of MSME, Government of India, 1 Year, 8.625 Lakh, PI: Dr. Bipul Das (Completed)  

3. Design and Development of portable, low-cost induction heating furnace for bell metal industry of Assam, DST, Government of India and Assam Science Technology and Environment Council, 2 Years, Rs. 8.00 Lakh, PI: Dr. Bipul Das, Co-PI: Dr. L. C. Saikia, EE Department, NIT Silchar (Ongoing)

4. Development of Three axes force and torque measurement device for monitoring and control of friction stir welding process, DST, Government of India, 3 Years, Rs. 77.70 Lakh, PI: Dr. Bipul Das, Co-PI: Dr. N. Adhikary, EE Department, NIT Silchar (Ongoing)

5. Establishment of Science Technology and Innovation Hub in NIT Silchar, Cachar, Assam, for the socioeconomic upliftment of SC/ST population in Assam, DST, Government of India, Rs. 1.44 Crore, PI: Dr. Biplab Das, Co-PI: Prof. F. A. Talukdar, Dr. Bipul Das, Dr. Risha Mal, Dr. Olympa Baro, Dr. K. Shankar,Dr. A. K. Das, Dr. Ripon Patgiri, Dr. Avijit Chowdhury (Ongoing)

Invited Talks/Outreach Activities

• Delivered a lecture at the short-term course on “Recent Advances in Manufacturing and Technology” during 22-26 February 2021, organized at the Indian Institute of Technology Guwahati, Assam, India.
• Technical session chair at 2nd Second International Conference on Recent Advances in Manufacturing (RAM-2021) during 10-12 June 2021 at SVNIT Surat, Gujrat, India 
• Delivered a lecture at short-term course on “Advances in Welding and Additive Manufacturing” during 10-14 December 2020, organized at the Indian Institute of Technology Guwahati, Assam, India
  Delivered invited lecture on a one-week faculty development program on “Project Management” held during 3-7 February 2020 at Assam Engineering College, Assam, India. 
• Technical Session Chair at 2nd International Conference on New Frontiers in Engineering, Science and Technology (NFEST 2019) held 18-22 February 2019 at NIT Kurukshetra, India. 
• Delivered lecture in Faculty Development Program “Recent Advancement in Welding and Allied Processes” at Assam Engineering College, Guwahati, during 13-24 August 2018.

Laboratories Developed

Condition Monitoring Laboratory

The condition monitoring laboratory was established in 2021 at the Department of Mechanical Engineering, NIT Silchar. The laboratory was established to conduct cutting-edge research in sensor development, condition monitoring, product prototyping, and development. The laboratory has bagged several externally funded research projects and produced several scholars, including Ph.D., M. Tech. and B. Tech. Click here to find more details about the condition monitoring laboratory.

Advanced Joining Laboratory

The advanced joining laboratory was established in 2021 at the Department of Mechanical Engineering, NIT Silchar. The laboratory was established to conduct cutting-edge research in sensor development, condition monitoring, product prototyping, and development. The laboratory has bagged several externally funded research projects and produced several scholars, including Ph.D., M. Tech. and B. Tech. Click Here to find more details about the advanced joining laboratory.

Subjects Taught

• ME 210 Machining and Machine Tools (UG, 2019-)
• ME 306 Advanced Machining Process (UG, 2020-)
• ME 308 Automobile Engineering (UG, 2018-)
• ME 5201 Principles of Industrial Design and Manufacturing (PG/Ph.D., 2021-)

Awards & Recognition

1. Received best technical paper award at the International Conference on Precision, Meso, Micro and Nano Engineering (COPEN 2019) held at IIT Indore from 12-14 December 2019.
2. Received best technical paper award for the paper presented at the 2^nd International Conference on Advances in Cutting, Welding and Surfacing (CWS), 05-07 August 2015, Coimbatore, India.
3. Received best poster award in Research Conclave 2017, Organized by the Student Academic Board, Indian Institute of Technology Guwahati

Reviewer

International Journals

• Journal of Manufacturing Processes
• IMechE Part E: Journal of Process Mechanical Engineering
• Sadhana
• Experimental Techniques
• IMechE Part C: Journal of Mechanical Engineering Science
• Journal of Materials Engineering & Performance
• Research in Non-Destructive Testing Evaluation
• IMechE Part L: Journal of Materials: Design and Applications, SAGE Publications
• Measurement

Ph.D.

S. No.	Name	Status	Research Area	Role
1	Mehdi Mehtab Mirad	Thesis Submitted	Nonconventional Machining	Supervisor
2	Pohor Patric Debbarma	Ongoing	Friction stir welding	Supervisor
3	Dhiraj Raj	Thesis Submitted	Selective laser material deposition	Co-Supervisor
4	Ranjan Majhi	Ongoing	Composite materials	Co-Supervisor
5	Bidisha Chetia	Ongoing	Advanced Fuel Research	Co-Supervisor
6	Sonali Nag	Ongoing	Fraction Stir Additive Manufacturing	Supervisor
7	Praveen Kumar	Ongoing	Flexible sensor development	Supervisor

M. Tech.

S. No.	Name	Thesis title	Status	Role
1	Gourav Deb	Investigation of thin layer material deposition on metallic materials using induction heating process for surface modification	Ongoing (2022-24)	Co-supervisor
2	Ashimjyoti Chutia	Experimental and numerical investigation on solid state material deposition using friction stir additive manufacturing for developing bimetallic components	Ongoing (2022-24)	Supervisor
3	Vishak AP	Analysis of structural members for the development of force and torque measurement system in the friction stir welding process	Completed (2021-23)	Supervisor
4	Bonda Sai Krishna	Numerical modelling of resistance spot welding of dissimilar materials	Completed (2020-22)	Supervisor
5	Chreerla Harikrishna	Numerical modelling of induction heating process for effective joining of composite materials	Completed (2020-22)	Supervisor
6	Manish Paul	Numerical modelling of induction heating system for the repair of exit hole defect in friction stir welding process.	Completed (2019-21)	Supervisor
7	Saka Abhijeet Rajendra	Fatigue analysis of USM tool with various defects through numerical modelling	Completed (2019-21)	Supervisor
8	Aman Dwivedi	Machine vision based system for weld quality and surface defect monitoring in the manual metal arc welding process	Completed (2018-20)	Supervisor
9	Jiomani Talukdar	Numerical modelling of ultrasonic machining tool for failure estimation	Completed (2018-20)	Completed

The advanced joining laboratory at NIT Silchar is looking for potential PhD candidates in the following areas.

Research Area/Highlight

1. Thin Layer Material Deposition: In many engineering applications, surface modifications and repair are critical tasks. To modify or repair the existing surface on high-performance system components, a thin layer of material deposition is made to improve the life of the product surface for better engineering performance. The challenges in thin material deposition are controlled temperature between the substrate and deposited material, properties of the deposited material before and after deposition, alloying characteristics, retention of the parent material properties, etc. To address the above challenges, the current research is motivated by finding effective solutions to develop technologies for efficient material deposition methods using alternative systems. 
2. Design and development of FSAM tool: The current manufacturing process has rapidly shifted towards the additive manufacturing domain. Various research activities have been conducted to develop systems and processes for improving additive manufacturing processes for industrial applications. By its various advantages, the friction stir welding process can perform additive manufacturing applications with minor modifications to the existing equipment. The current research attempts to develop a new and innovative system for performing the powder-based additive manufacturing of metallic materials using the friction stir welding setup. 
3. Friction stir mechanical clinching: The clinching is an interesting mechanical joining process to obtain both temporary and permanent joints in the metallic components. The traditional clinching process is limited by high mechanical stress and is prone to material failure due to improper parameter selection. The friction stir welding process can be tuned to perform the clinching operation on the metallic materials to improve the process. The current research will address the issues in the conventional clinching process and will be driven to develop a friction stir welding-based clinching process for the material joining.    

The condition monitoring laboratory at NIT Silchar is looking for potential Ph.D. candidates in the following areas.

1. Flexible force and torque sensor: Sensor development is an interesting field in engineering. The current opening is for developing a flexible sensor system to monitor the forces and torque during the friction stir welding process. The system under development is innovative in simultaneously measuring forces and torque during welding.   
2. Free field temperature monitoring: During additive manufacturing applications, temperature monitoring may fetch critical information about the process’s performance. However, no sufficient systems are available to perform the same to date. The available systems mostly include camera-based monitoring, which is way too costly for many small-scale applications. To address this issue, a free field temperature monitoring system would be of great interest to monitor the real-time temperature in additive manufacturing applications.   

Administrative Responsibilities

1. Associate Warden of Aryabhatta Hostel at NIT Silchar (2019 – 2024)
2. Faculty Coordinator of SAE BAJA team TWARN at NIT Silchar (2019-2022) 
3. Convener, North East Green Summit 2021 held at NIT Silchar during 16^th – 18^th November 2021
4. Joint Organizing Secretary, ICRAME 2022, held at NIT Silchar from 3^rd – 5^th February 2022
5. Member, Institute Examination Committee (2019 – 2022)
6. Twinning Coordinator under TEQIP III at NIT Silchar (2020-21)
7. Member, DUPC, Mechanical Engineering Department at NIT Silchar (2021-2023)
8. Member, DPC, Mechanical Engineering Department at NIT Silchar (2023 – present)