Biosketch

Dr. Shashi Prakash is currently working as an Assistant Professor in Mechanical Engineering Department at Netaji Subhash University of Technology, New Delhi. Prior to this, he worked at Ahmedabad University, Ahmedabad. He holds Ph.D. degree in Mechanical Engineering from Indian Institute of Technology Patna, India. He obtained Masters in Production Engineering from Jadavpur University, Kolkata where he received university Gold Medal for securing first rank. He is the recipient of DST INSPIRE fellowship award from Government of India. Shashi's primary research area is Laser based machining and micromachining processes. He also has a keen interest in laser related processes for bio-microfluidics.

https://scholar.google.co.in/citations?user=jqOGmeAAAAAJ&hl=en

 

B.Tech/M.Tech. Projects/Summer Internships: Students desirous of doing B.Tech./M.Tech projects or internship should write an email with a brief write-up about themselves.

Courses

Tool Design

Strength of Materials

Theory of Machines

Basics of Mechanical Engineering

Laser Material Processing

Advanced Heat Transfer

Projects/Consultancy

1. High throughput synthesis of nanoliposomes in microfluidic reactors for efficient delivery of anticancer drugs, PI: Dharmesh Varade, Co-PI(s): Shashi Prakash and Ajay Karakoti Funding agency: BRNS, Department of Atomic Energy, Government of India, Funding Amount: Rs. 31 lacs, 2019-22
2. Fiber Laser Based Surface Texturing of Aluminum - Mg Alloy for Adhesion Improvement, PI: Shashi Prakash, DST, startup grant scheme, Funding amount: 23.4 lacs 2019-21
3. CO2 laser cutting of thin glass sheets for microfluidic applications, PI: Shashi Prakash, Funding Agency: Ahmedabad University, Funding Amount: Rs. 2 lacs, 2019 (completed)

Labs

Theory of Machines

Metrology

Advanced Manufacturing

Areas of Interest

 

Laser Material Processing, Laser Micromachining, Advance Manufacturing Processes, Laser Assisted Joining Process, Surface Texturing, Laser based processing for bio-microfluidics. Heat and Mass Transfer in Manufacturing Processes, Manufacturing Science

Publications (Click to expand)

https://scholar.google.co.in/citations?user=jqOGmeAAAAAJ&hl=en

Journals
1. Shashi Prakash, Siddharth Suman, Neural network based prediction for surface characteristics in CO2 laser micro-milling of glass fiber reinforced plastic composite, Neural Computing and Applications, (2021). https://doi.org/10.1007/s00521-021-05818-w,
2. Shashi Prakash, Subrata Kumar, Determining the suitable CO 2 laser based technique for microchannel fabrication on PMMA, July 2021, Optics & Laser Technology 139(2):107017 DOI: 10.1016/j.optlastec.2021.107
3. Shashi Prakash, Experimental investigation of surface defects in low-power CO 2 laser engraving of glass fiber-reinforced polymer composite, Polymer Composites, 2019; Wiley, 1-12,
4. Shashi Prakash, Subrata Kumar, Pulse smearing and profile generation in CO 2 laser micromachining on PMMA via raster scanning, Journal of Manufacturing Processes, 2018; (31), 116-123,  DOI: https://doi.org/10.1016/j.jmapro.2017.11.003
5. Shashi Prakash, Subrata Kumar, Fabrication of rectangular cross-sectional microchannels with a CO2 laser and underwater fabricated copper mask, 94:180 - 192, 2017, Optics and Laser Technology, (Elsevier), DOI: https://doi.org/10.1016/j.optlastec.2017.03.034
6. Shashi Prakash, Subrata Kumar, Experimental investigations and analytical modeling of multi-pass CO2 laser processing on PMMA, Precision Engineering, 49 (2017) 220–234, (Elsevier),  DOI: https://doi.org/10.1016/j.precisioneng.2017.02.010
7. Shashi Prakash, Subrata Kumar, Experimental and theoretical analysis of defocused CO2 laser microchanneling on PMMA for enhanced surface finish. Journal of Micromechanics and Microengineering. 2017;(27):025003, DOI: https://doi.org/10.1088/1361-6439/27/2/025003
8. Shashi Prakash, Subrata Kumar, Fabrication of microchannels on transparent PMMA using CO2 Laser (10.6 µm) for microfluidic applications: An experimental investigation. International Journal of Precision Engineering and Manufacturing. 2015;16(2):361–366., DOI: https://doi.org/10.1007/s125015-0047-8
9. Shashi Prakash, Subrata Kumar, Profile and depth prediction in single-pass and two-pass CO2 laser microchanneling processes. Journal of Micromechanics and Microengineering. 2015;25(3):035010., DOI: https://doi.org/10.1088/0960-1317/25/3/035010
10. Shashi Prakash, Subrata Kumar, Fabrication of microchannels: A review. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2015;229(8):1273–1288., DOI: https://doi.org/10.1177/0954405414535581
11. Shashi Prakash, Bappa Acherjee, Arunanshu S. Kuar, Souren Mitra, An experimental investigation on Nd:YAG laser microchanneling on polymethyl methacrylate submerged in water. Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture 04/2013; 227(4-4):508-519.,  DOI:https://doi.org/10.1177/0954405412472178
12. Shashi Prakash, Bappa Acherjee, Arunanshu S. Kuar, Souren Mitra, Robust Parameters Design and Optimization of an Underwater Nd:YAG Laser Microchanneling Process Using the Taguchi Method. Lasers in Engineering 01/2016; 33(1-3):87-102.,
13. Bappa Acherjee, Debanjan Maity, Shashi Prakash, Arunanshu S. Kuar, Optimal Process Parameter Selection of Underwater Nd:YAG Laser Micro-channeling on PMMA by Firefly Algorithm and Flower Pollination Algorithm, Journal of Chinese Society of Mechanical Engineers, (2018 / 10 / 01) ? P515 - 533
14. Shashi Prakash, Chandrakant Nirala, CO 2 Laser Cutting of Thin Glass Sheet Under Different Ambient Conditions, March 2021, Lasers in Engineering 49(1-3):110-117 (2021), Lasers in Engineering
15. Bappa Acherjee, Shashi Prakash, Arunanshu S. Kuar, Souren Mitra: Grey Relational Analysis Based Optimization of Underwater Nd: YAG Laser Micro-channeling on PMMA. Procedia Engineering 12/2014; 97:1406-1415. DOI: 10.1016/j.proeng.2014.12.422 (Scopus)
16. Shashi Prakash, Subrata Kumar, CO 2 Laser Microchanneling Process: Effects of Compound Parameters and Pulse Overlapping, IOP Conf. Series: Materials Science and Engineering 149 (2016) 012018, DOI: https://doi.org/10.1088/1757-899X/149/1/012018 (Scopus)
17. Shashi Prakash, Nitish Kumar, Subrata Kumar. Monte-Carlo Based Uncertainty Analysis For CO2 Laser Micro-channeling Model. IOP Conf. Series: Materials Science and Engineering 149 (2016) 012125, DOI: https://doi.org/10.1088/1757-899X/149/1/012125 (Scopus)
18. Nitish Kumar, Shashi Prakash, Subrata Kumar. Studies of laser textured Ti-6Al-4V wettability for implants, IOP Conf. Series: Materials Science and Engineering 149 (2016) 012056, DOI: https://doi.org/10.1088/1899X/149/1/012056 (Scopus)

Book Chapters
1. Shashi Prakash, Subrata Kumar, Energy Based Analysis of Laser Microchanneling Process on Poly-methyl Methacrylate (PMMA). In: Lasers Based Manufacturing. Springer; 2015. p. 239–253.
2. Shashi Prakash, Subrata Kumar, Microchannel fabrication via direct laser writing. In Microfabrication and Precision Engineering, Woodhead publishing (Elsevier) January, 2017, ISBN:978-0-85709-485-8, p163.
3. Shashi Prakash, Optimizing the defocused CO2 laser microchanneling ptocess using grey relational analysis, Advances in Manufacturing Systems: Select Proceedings of RAM 2020, Springer Singapore, ISBN: 978-981-33-4465-5

4. Shashi Prakash, Laser micro-processing for polymers and silicon for microfluidic applications, In Laser Micro- and Nano-scale Processing, IOP Science, UK, August 2021, ISBN: 978-0-7503-1683-5


Conferences
1. Shashi Prakash, Optimizing the defocused CO2 laser microchanneling ptocess using grey relational analysis, RAM 2020, SVNIT Surat, 2020
2. Tapas Bhavsar, Shashi Prakash, 3D-printing of skull bone from CT scan data, ICAMEN 2019, Manipal University, Jaipur, Materials Today: Proceedings, 2020, ISSN 2214-7853, https://doi.org/10.1016/j.matpr.2020.
3. Parshil Khamar, Shashi Prakash, Investigation of dimensional accuracy in CO2 laser cutting of PMMA, Materials Today: Proceedings, 2020, ISSN 2214-7853, https://doi.org/10.1016/j.matpr.2020.04.711.
4. Shashi Prakash, Subrata Kumar, Dimensional Control Through Process Parameters In Microchannel Fabrication On PMMA With A CO 2 Laser, COPEN, 2017, IIT Madras (Dcember 7 - 9)
5. Shashi Prakash, Subrata Kumar, Energy Based Analysis of Laser Microchanneling Process on Poly-methyl methacrylate (PMMA). In: All India Manufacturing Technology, Design and Research Conference (AIMTDR 2014), 2014, IIT Guwahati, Assam, India; 2014.
6. Shashi Prakash, Subrata Kumar, Effects of compound parameters in CO2 laser microchanneling of PMMA. In: International conference on Application of Lasers in Manufacturing, (CALM 2015). Pragati Maidan, New Delhi, India; 2015.
7. Shashi Prakash, Subrata Kumar, Parametric effects and dimensional predictions in CO2 laser microchanneling on PMMA. In: International Conference on Advanced and Agile Manufacturing Systems (ICAM 2015), KNIT, Sultanpur; 2015.
8. Shashi Prakash, Subrata Kumar, Statistical and Analytical approaches for Depth and Profile Prediction in CO 2 Laser Microchanneling on Poly-methyl- methacrylate (PMMA). In: 3rd International Conference on Laser and Plasma Application in Materials Science (LAPAMS 2015); Kolkata.
9. Shashi Prakash, Bappa Acherjee, Arunanshu S. Kuar, Souren Mitra, Fabrication of Microchannels on Polymers Using Nd:YAG Laser. International Conference on Agile Manufacturing, IIT BHU,; 12/2012
10. Shashi Prakash, Bappa Acherjee, Arunanshu S. Kuar, Souren Mitra, Creating microchannels on poly-mers using underwater Nd:YAG laser processing. International Conference on Manufacturing Excellence, Amity University Uttar Pradesh, Noida, India, Noida, India; 03/2012
11. Shashi Prakash, Bappa Acherjee, Arunanshu S. Kuar, Souren Mitra, Parametric Analysis and Response Surface Modeling of Water Assisted Nd:YAG Laser Microchanneling of PMMA. An International Conference on PRECISION, MESO, MICRO, AND NANO ENGINEERING (COPEN), College of Engineering., Pune; 12/2011
12. Shashi Prakash, Subrata Kumar, CO2 Laser Microchanneling Process: Effects of Compound Parameters and Pulse Overlapping, IConAMMA 2016, Amrita University Bangalore.
13. Shashi Prakash, Nitish Kumar, Subrata Kumar, Monte-Carlo Based Uncertainty Analysis For CO2 Laser Micro-channeling Model. IConAMMA 2016, Amrita University Bangalore.
14. Nitish Kumar, Shashi Prakash, Subrata Kumar, Studies of laser textured Ti-6Al-4V wettability for implants, IConAMMA 2016, Amrita University Bangalore.
15. Shashi Prakash, Nitish Kumar, Subrata Kumar, CO2 Laser Microchanneling on Polymethyl methacrylate (PMMA) at different defocusing, COE Pune, AIMTDR 2016
16. Shashi Prakash, An Investigation of Low Power CO2 Laser Micro-machining of Glass Fiber ReinforcePolymer Composite, ICRACM 2019, IIT BHU
17. P. Patel, P. Patel, K. Chaudhury, H. Vohra, S. Prakash, An investigation into surface milling operation accompanied by peltier chip cooling effect, STEM conference, Vibrant Gujarat 2019.
18. Ujjawal Modi, Shashi Prakash, Wettability of 3 D printed polylactic acid (PLA) parts, ICAMEN 2019, Manipal University, Jaipur