Research Interests
Advanced Manufacturing Processes, Nontraditional Micro-machining, Metal Matrix Composites, Primary and Secondary Processing of MMC, Quality Management, QFD for service sector, Concurrent Engineering, Product design and development, including Healthcare and Assistive Devices, Supply Chain Management
BioSketch
Research
Impact of gas film thickness on the performance of RM-ECDM process during machining of glass
2022
Singh, T.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 652–663 , Volumes: 37 ,
Zinc alloys for biomedical applications—alloy design, processing techniques, and bio-functional performance
2026
Kansal, A.; Dixit, N.; Kumar, S.; Dvivedi, A.; Kumar, P. | Springer
Journal: Journal of Materials Science Pages: 38 ,
Investigation of hole roundness-error using different electrolytes in STED proces
2022
Vats, A.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1405–1421 , Volumes: 37 ,
EDM of high aspect ratio micro-holes on Ti-6Al-4V alloy by synchronizing energy interactions
2020
Singh, R.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1188–1203 , Volumes: 35 ,
Development of material removal rate model and performance evaluation of ultrasonic turning process
2020
Kumar, S.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1598–1611 , Volumes: 35 ,
Experimental investigations, empirical modeling and multi objective optimization of performance characteristics for ECDD with pressurized feeding method
2020
Singh, T.; Rathore, R. S.; Dvivedi, A. | Elsevier
Journal: Measurement Volumes: 149 ,
On near-dry wire ECDM of Al6063/SiC/10p MMC
2021
Shamim, F. A.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 122–134 , Volumes: 36 ,
Performance enhancement of rotary tool near-dry EDM process through tool modification
2021
Yadav, V. K.; Singh, R.; Kumar, P.; Dvivedi, A. | Springer
Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering Pages: 1-16 , Volumes: 43 ,
Assessing the performance of STED process for fabricating high aspect ratio holes on Inconel 718 alloy
2021
Vats, A.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 677–692 , Volumes: 36 ,
Investigation of hole roundness-error using different electrolytes in STED proces
2022
Vats, A.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1405–1421 , Volumes: 37 ,
On controlling of gas film shape in electrochemical discharge machining process for fabrication of elliptical holes
2021
Appalanaidu, B.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 558–571 , Volumes: 36 ,
Investigations on the fabrication of a patterned tool by chemical etching
2021
Tiwari, T.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1840–1852 , Volumes: 36 ,
Investigation on Deposition of the Machined By-Products and Its Reduction during Electrochemical Discharge Machining (ECDM)
2022
rs Arya, R. K.; Paliwal, S.; Dvivedi, A.; Maran, R | IOP Publishing
Journal: Journal of The Electrochemical Society Volumes: 169 ,
On energy channelization analysis for ECSM process during fabrication of microchannels in glass
2022
Singh, T.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Volumes: 37 ,
Evaluating the Feasibility of Using Biodegradable Castor Oil as a Dielectric Medium during Micro-Electrical Discharge Machining of Inconel 718
2022
Singh, R.; Yadav, V. K.; Dvivedi, A.; Kumar, P. | Springer
Journal: Journal of Materials Engineering and Performance Pages: 1-13 ,
Decision-making on job satisfaction improvement programmes using fuzzy QFD model: a case study in Ethiopia
2019
Filketu, S.; Dvivedi, A.; Abebe, B. B. | Taylor & Francis
Journal: Total Quality Management & Business Excellence Pages: 1068–1091 , Volumes: 30 ,
Experimental investigations into triplex hybrid process of GA-RDECDM during subtractive processing of MMC’s
2019
Jha, N. K.; Singh, T.; Dvivedi, A.; Rajesha, S. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 243–255 , Volumes: 3 ,
On effect of tool rotation on performance of rotary tool micro-ultrasonic machining
2019
Kumar, S.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 475–486 , Volumes: 34 ,
On performance enhancement of electrochemical discharge trepanning (ECDT) process by sonication of tool electrode
2019
Pawariya, K.; Dvivedi, A.; Singh, T. | Elsevier
Journal: Precision Engineering Pages: 8-19 , Volumes: 56 ,
Effect of tool materials on performance of rotary tool micro-USM process during fabrication of microchannels
2019
Kumar, S.; Dvivedi, A. | Springer
Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering Pages: 1-16 , Volumes: 41 ,
On machining of hard and brittle materials using rotary tool micro-ultrasonic drilling process
2019
Kumar, S.; Dvivedi, A | Taylor & Francis
Journal: Materials and Manufacturing Processe Pages: 736–748 , Volumes: 34 ,
Effect of tool rotation in near-dry EDM process on machining characteristics of HSS
2019
Yadav, V. K.; Kumar, P.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 779–790 , Volumes: 34 ,
An environment-friendly and sustainable machining method: near-dry EDM
2019
Dhakar, K.; Chaudhary, K.; Dvivedi, A.; Bembalge, O. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1307–1315 , Volumes: 34 ,
Fabrication of micro-slits using W-ECDM process with textured wire surface: An experimental investigation on kerf overcut reduction and straightness improvement
2019
Singh, T.; Dvivedi, A.; Arya, R. K. | Elsevier
Journal: Precision Engineering Pages: 211–223 , Volumes: 59 ,
Performance enhancement of rotary tool near-dry EDM of HSS by supplying oxygen gas in the dielectric medium
2019
Yadav, V. K.; Kumar, P.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1832–1846 , Volumes: 34 ,
Quality management as a tool for job satisfaction improvement in low-level technology organizations: the case of Ethiopia
2019
Addis, S.; Dvivedi, A.; Beshah, B. | Taylor & Francis
Journal: Production Planning & Control Pages: 665–681 , Volumes: 30 ,
Investigations on quantification and replenishment of vaporized electrolyte during deep micro-holes drilling using pressurized flow-ECDM process
2019
Arya, R. K.; Dvivedi, A. | Elsevier
Journal: Journal of Materials Processing Technology Pages: 217–229 , Volumes: 266 ,
Experimental investigations of energy channelization behavior in ultrasonic assisted electrochemical discharge machining
2021
Singh, T.; Dvivedi, A.; Shanu, A.; Dixit, P. | Elsevier
Journal: Journal of Materials Processing Technology Volumes: 293 ,
Micro-ultrasonic drilling of monocrystalline silicon: An experimental investigation on machined surface topography and optimization using User's preference rating based TOPSIS
2019
Kumar, S.; Dvivedi, A. | Elsevier
Journal: Materials Science in Semiconductor Processing Pages: 104584 , Volumes: 102 ,
Fabrication of micro holes in Yttria-stabilized zirconia (Y-SZ) by hybrid process of electrochemical discharge machining (ECDM)
2021
Singh, T.; Dvivedi, A. | Elsevier
Journal: Ceramics International Pages: 23677–23681 ,
Experimental investigations into rotary mode electrochemical discharge drilling (RM-ECDD) of metal matrix composites
2020
Singh, T.; Arya, R. K.; Dvivedi, A. | Taylor & Francis
Journal: Machining Science and Technology Pages: 195–226 , Volumes: 24 ,
On prolongation of discharge regime during ECDM by titrated flow of electrolyte
2020
Singh, T.; Dvivedi, A. | Springer
Journal: The International Journal of Advanced Manufacturing Technology Pages: 1819–1834 ,
Sonication of tool electrode for utilizing high discharge energy during ECDM
2020
Rathore, R. S.; Dvivedi, A. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 415–429 , Volumes: 35 ,
On material removal analysis in ECSM process during micro-channeling with rough tool: Experimental investigation and numerical simulation
2024
Singh, T.; Sharma, S.; Parmar, G.; Dvivedi, A. | Elsevier
Journal: Measurement Pages: 114440 , Volumes: 229 ,
Machine learning predicted thermodynamic properties of halocarbon- and hydrocarbon-based refrigerants
2025
Gupta C.P.; Srivastava V.C.; Dvivedi A. | Elsevier
Journal: Engineering Applications of Artificial Intelligence Volumes: 157 ,
Additive manufacturing processes protocol prediction by Artificial Intelligence using X-ray Computed Tomography data
2025
Khod, S.; Goswami, M.; Dvivedi, A. | Springer
Journal: Progress in Additive Manufacturing Pages: 6691–6709 , Volumes: 10 ,
Application of robust experiment to develop quality improvement in weaving production
2025
Delvika, Y.; Dvivedi, A. | Emerald Publishing
Journal: Research Journal of Textile and Apparel
Theoretical and experimental investigation of sustainable simultaneous electrochemical and electro discharge machining process: A step towards green manufacturing
2025
Sharma, S.; Dvivedi, A. | IOP Publishing
Journal: Journal of The Electrochemical Society Pages: 033503 , Volumes: 172 ,
Improving the quality of μ-holes in glass epoxy composite by controlling the plasma using rotary magnetic field assisted electrochemical discharge process: An experimental analysis with computational modelling
2025
Bahar, D.; Dvivedi, A.; Kumar, P. | SAGE Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pages: 09544054251410990 ,
Optimizing the quality characteristics of glass composite vias for RF-MEMS using central composite design, metaheuristics, and bayesian regularization-based machine learning
2025
Dvivedi, A.; Kumar, P. | Elsevier
Journal: Measurement Pages: 116323 , Volumes: 243 ,
Prioritizing elements of digitalization for lean and green SME operations: an ISM-MICMAC study in the Indian context
2025
Kumar, R.; Kumar, P.; Kumar, A.; Dvivedi, A. | Emerald Publishing
Journal: Journal of Advances in Management Research
Investigations on tool electrode wear during ultrasonic assisted ECDM process
2025
Rathore, R. S.; Santarao, K.; Botcha, A.; Dvivedi, A. | Taylor & Francis
Journal: Machining Science and Technology Pages: 93–117 , Volumes: 29 ,
Achieving high machining speed and sustainability in micro-EDM using a two-phase three component dielectric
2025
Singh, R.; Dixit, P.; Dvivedi, A.; Kumar, P. | Elsevier
Journal: Journal of Manufacturing Processes Pages: 50–66 , Volumes: 139 ,
Issues of gas film stability with performance characteristics in μ-ECDM: A review of existing approaches and preliminary investigation on proposed stable & sustainable approach
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | SAGE Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pages: 729–744 , Volumes: 239 ,
In Vitro Degradation and Cytocompatibility Study of Biodegradable Porous Zinc Scaffolds Fabricated by Fused Deposition Modeling Based Rapid Tooling Method
2025
Kansal, A.; Mahapatra, S.; Dvivedi, A.; Kumar, P.; Goswami, M. | Wiley
Journal: Journal of Biomedical Materials Research Part B: Applied Biomaterials Pages: e35593 , Volumes: 113 ,
On material removal analysis of simultaneous electrochemical and electrodischarge machining process through analytical, numerical and experimental approaches
2025
Sharma, S.; Dvivedi, A. | Elsevier
Journal: Journal of Manufacturing Processes Pages: 204–215 , Volumes: 135 ,
Comparative Analysis of Simultaneous Electrochemical and Electrodischarge Machining Process
2024
Sharma, S.; Dvivedi, A. | ASME
Journal: Journal of Micro and Nano-Manufacturing Pages: 1–18 ,
Carbon neutrality in transportation: In the context of renewable sources
2025
Soni, R.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: International Journal of Sustainable Transportation Pages: 1–15 ,
Fabrication of Die Sink Electrochemical Machining Tools Using Low Melting Fusible Alloy and Polymer Based Additive Manufacturing
2024
Rajakumaran, M.; Dvivedi, A. | IOP Publishing
Journal: Journal of The Electrochemical Society
Experimental and numerical analysis of pulsed-electrochemical discharge process with electrolyte stirring
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1–20 ,
Optimization of Rotary-Magnet assisted ECSM on borosilicate-glass using machine learning
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1101–1121 , Volumes: 39 ,
Fluoride-ion enhanced the electrochemical surface texturing of Ti6Al4V alloy via in situ EDM and ECM with patterned tool
2024
Singh, R.; Tiwari, T.; Rakurty, C. S.; Dvivedi, A.; Kumar, P. | Springer
Journal: The International Journal of Advanced Manufacturing Technology Pages: 1–20 ,
On process stability and sustainability of controlled-Electro Chemical Discharge Machining (ECDM)
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 2003–2019 , Volumes: 39 ,
Electrochemical corrosion behavior study of different porosity zinc scaffolds in simulated body fluid (SBF) for biomedical applications
2024
Kansal, A.; Dvivedi, A.; Kumar, P. | Springer
Journal: Journal of Applied Electrochemistry Pages: 1–12 ,
Issues of gas film stability with performance characteristics in μ-ECDM: A review of existing approaches and preliminary investigation on proposed stable & sustainable approach
2025
Bahar, D.; Dvivedi, A.; Kumar, P. | SAGE Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pages: 09544054241249205 ,
Examining the effect of gas film characteristics in magnetically and ultrasonic-assisted electrochemical discharge machining
2025
Singh, M.; Dvivedi, A.; Kumar, P. | Springer
Journal: The International Journal of Advanced Manufacturing Technology Pages: 4667–4684 , Volumes: 137 ,
On material removal analysis in ECSM process during micro-channeling with rough tool: Experimental investigation and numerical simulation
2024
Singh, T.; Sharma, S.; Parmar, G.; Dvivedi, A. | Elsevier
Journal: Measurement Pages: 114440 , Volumes: 229 ,
On Performance Enhancement of the STED Process Using Modified Tool Electrode
2024
Vats, A.; Tiwari, T.; Dvivedi, A.; Kumar, P. | IOP Publishing
Journal: Journal of The Electrochemical Society Pages: 053504 , Volumes: 171 ,
Improvement in performance during micromachining of borosilicate glass with temperature-stirring-assisted ECDM
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | Springer
Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering Pages: 312 , Volumes: 46 ,
Analytical model for material removal rate in rotary tool micro-ultrasonic machining of hard and brittle materials
2026
Kumar, S.; Dvivedi, A.; Rakurty, C. S.; Tiwari, T.; Tewari, M. | SAGE Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pages: 09544089241262482 ,
Optimization of Rotary-Magnet assisted ECSM on borosilicate-glass using machine learning
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1101-1121 , Volumes: 39 ,
Computational modelling and experimental investigation of micro-electrochemical discharge machining by controlling the electrolyte temperature
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | IOP Publishing
Journal: Journal of Micromechanics and Microengineering Pages: 035001 , Volumes: 34 ,
Editors' Choice—Improving Quality of EDMed Micro-Holes on Titanium via In Situ Electrochemical Post-processing: A Transient Simulation and Experimental Study
2024
Singh, R.; Rakurty, C. S.; Dvivedi, A.; Kumar, P. | The Electrochemical Society
Journal: Journal of The Electrochemical Society Pages: 013501 , Volumes: 171 ,
On innovative approach in ECDM process by controlling the temperature and stirring rate of the electrolyte
2024
Bahar, D.; Dvivedi, A.; Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 408–426 , Volumes: 39 ,
Analysis of tribological behavior of dual-textured Ti-6Al-4V alloy surfaces fabricated using a tool-mimic approach
2023
Tiwari, T., Dvivedi, A., & Kumar, P. | Elsevier
Journal: Tribology International Pages: 108527 , Volumes: 185 ,
On application of tool mimic approach for fabrication of functional surfaces using EDM process
2023
Tiwari, T., Dvivedi, A., Kumar, P. | Springer Berlin Heidelberg
Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering Pages: 190 , Volumes: 45 ,
A Review on Developments in Electrolytes and their Feeding Methods for ECDM Process
2023
Sharma, S., Singh, T., & Dvivedi, A. | Springer
Journal: Silicon Pages: 1571-1595 , Volumes: 15 ,
Development and performance study of biomedical porous zinc scaffold manufactured by using additive manufacturing and microwave sintering
2023
Kansal, A., Dvivedi, A., & Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 1020-1032 , Volumes: 38 ,
Predictive modeling of tool wear in rotary tool micro-ultrasonic machining
2023
Kumar, S., Dvivedi, A., Tiwari, T., & Tewari, M. | SAGE Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pages: 09544089231159209 ,
Improving the electrochemical discharge machining (ECDM) process for deep-micro-hole drilling on glass by application of the electrolyte-air injection
2023
Arya, R. K., Dvivedi, A. | Elsevier
Journal: Ceramics International Pages: 8916-8935 , Volumes: 49 ,
Assessing the performance of air, argon, and oxygen as dielectric mediums during dry-micro-EDM of Ti6Al4V alloy: A comparative study
2023
Singh, R., Tiwari, T., Dvivedi, A., Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: 859-877 , Volumes: 38 ,
An investigation of energy utilization behavior on borosilicate glass through heating and stirring of the electrolyte in electro-chemical discharge machining
2023
Bahar, D., Dvivedi, A., Kumar, P. | Springer Netherlands
Journal: Journal of Applied Electrochemistry Pages: Jan-20 ,
Dimensional accuracy enhancement of machined-hole through UAECDM-process under the magnetic-field-assistance
2023
Singh, M., Dvivedi, A., Kumar, P. | Taylor & Francis
Journal: Materials and Manufacturing Processes Pages: Jan-2017 ,
Simultaneous electrochemical and electrodischarge machining process: An approach to sustainable manufacturing
2023
Sharma, S., Dvivedi, A. | Elsevier
Journal: Journal of Manufacturing Processes Pages: 123-137 , Volumes: 104 ,
Enhancing Surface Integrity of Micro-Holes Machined on Inconel 718 using Shaped Tube Electrochemical Machining via Hydroxide Mixing
2023
43. Vats, A., Singh, R., Dvivedi, A., Kumar, P | IOP Publishing
Journal: Journal of The Electrochemical Society Volumes: 170 ,
Performance analysis of the footwear manufacturing assembly line: a case study using value stream mapping-simulation modelling
2023
Reda, H.; Dvivedi, A. | Inderscience Publishers (IEL)
Journal: International Journal of Business Excellence Pages: 333–354 , Volumes: 31 ,
Mapping the structural properties of zinc scaffold fabricated via rapid tooling for bone tissue engineering applications
2023
Kansal, A.; Dvivedi, A.; Kumar, P. | Emerald Publishing Limited
Journal: Rapid Prototyping Journal Pages: 1940–1957 , Volumes: 29 ,
Developments in tandem micro-machining processes to mitigate the machining issues at micron level: a systematic review, challenges and future opportunities
2022
Sharma, S.; Singh, T.; Dvivedi, A. | Taylor & Francis
Journal: Machining Science and Technology Pages: 515–570 ,
Fabrication and characterization of Al6063/SiC composites using electromagnetic stir casting process
2022
Shamim, F. A.; Dvivedi, A.; Kumar, P. | SAGE Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering Pages: 187–193 , Volumes: 236 ,
Decision-making on the selection of lean tools using fuzzy QFD and FMEA approach in the manufacturing industry
2022
Reda, H.; Dvivedi, A. | Elsevier
Journal: Expert Systems with Applications Volumes: 192 ,
Improvement in energy channelization behaviour during micro hole formation in Y-SZ ceramic with magnetic field assisted ECSM process
2022
Singh, T.; Appalanaidu, B.; Dvivedi, A. | Elsevier
Journal: Measurement Volumes: 194 ,
Honors And Awards
Teaching Engagements
Students
Miscellaneous
- Development of Ultrasonic Micromachining: Micromachining: Two machining configurations were designed and developed for ultrasonic micromachining. Subsequently features less than 200 microns were successfully developed. This developed machining process can be used for drilling of micro holes; machining of micro channels, micro arrays and micro moulds and turning of hard-and-brittle materials.
- Development of grinding assisted Electrochemical Discharge Machining (GAECDM) The research work involved further hybridization of an already existing hybrid process. GAECDM process functions under a combined action of electrochemical effects, electrical discharge erosion, and direct mechanical grinding. The integration of the mechanical action in the form of grinding assistance eliminate the major problem of ‘passivation effect’ encountered in normal ECM process. The GAECD machine with multiple axes manipulator was designed and developed in advanced manufacturing laboratory, IIT Roorkee. Subsequently, another configuration of GAECD machine was designed and developed. This second machine can perform machining of cylindrical work parts.
- Ultrasonic drilling in fiber reinforced composites: A pioneer work of drilling in fiber reinforced composites was successfully done using Ultrasonic drilling process. The setup for the same was developed in-house with suitable modifications in commercially available ultrasonic machine.
- Development of Near-Dry Electric Discharge Machining (EDM): An environment friendly process variant of EDM was developed in-house. The conventional liquid dielectric was replaced by two-phase dielectric (gaseous and liquid phase). This results in process being economical and eco-friendly. Further, the material removal rate and surface quality obtained was better than conventional EDM.
- Development of Electric Discharge Form Machining (EDFM). The EDFM is a process variant of conventional EDM. A pioneer work in obtaining free form surfaces machined by EDM was achieved by in-house development of 5-axes manipulator. The manipulator provided motion to the workpiece in X, Y, U and V axes. Investigations are continued for thread machining, contour machining in macro as well as micro ranges on difficult-to-machine materials.
- Development of Rotary Electric Discharge Machining: Rotary tool electric discharge machining (REDM) is a process variant of EDM in which the tool electrode is rotated with simultaneous electrical discharges. The centrifugal force near discharge area in REDM provides effective flushing of inter electrode gap. Consequently, material removal rate and surface finish improves.
- Development of Magnetic Assisted Abrasive Flow Drilling: The work involved development and optimization of hybrid drilling process for enhancing quality characteristics during drilling on metal matrix composites (MMC). This novel process was developed in-house. Further, this project involved development of new drill point geometry for machining of MMC’s.
- Development of setup for stir casting Manufacturing of Near-Net Shape MMC through development of stir casting retaining its cost effectiveness and still producing acceptable results. A novel setup was developed in-house for fabrication of Near-Net-Shape MMC using stir-squeeze-Quench casting route.
- Development of Powder Electric Discharge Machining (PEDM). Powder Electric Discharge Machining is a process variant of EDM. The powders (conductive/non-conductive) are mixed with dielectric fluid of EDM. The mixing of powders changes the conductivity of the dielectric further and improves spark discharge. This improves material removal rate and produces mirror finish surfaces in hard-to-machine materials. This setup for Powder-EDM was developed in-house.
- Quality Function Deployment in Service Sector: A case study This project was aimed at improving the Quality of Service functions in the Operation Theatres of hospitals by improving the work environment using Quality Function Deployment. The objective of this project was established after request from H.I.M.S., Dehradun’s management. I being the facilitator identified these problems and developed the guidelines to rectify them using the Quality Function Deployment technique.
- Powder Mixed Rotary Tool Electro Discharge Deposition Process This process was developed to deposit abrasive particles on micro-tools and other micro-products. The potential of this process is that any powdered material can be made to deposit over a conducting material. The products from this process can be used for micro-fabrication. Additionally, the developed facility can produce surface textures on micro components.
- Innovative device for creating tissue plane cleavage by the hydro - dissection method Designed and developed an innovative device for creating tissue plane cleavage by hydro-dissection. This device is presently used for cleft lip/palate reconstructive surgery. This device has reduced cleft palate surgery time to nearly half and had brought down the complication rate to near zero.
- Development of Ultrasonic Micromachining Facility: - Micromachining: Two machining configurations were designed and developed for ultrasonic micromachining. Subsequently features less than 200 microns were successfully developed. This developed machining process can be used for drilling of micro holes; machining of micro channels, micro arrays and micro moulds on hard and brittle materials.
- Ultrasonic Turning: Ultrasonic energy was effectively utilized for turning of hard-and-brittle materials. This resulted in development of a new machining process. This process is now being used for machining threads on hard-and-brittle materials. The facility was developed in-house.
- Development of grinding assisted Electrochemical Discharge Machining (GAECDM)Facility The development of GAECDM involves further hybridization of an already existing hybrid process. GAECDM process functions under a combined action of electrochemical effects, electrical discharge erosion, and direct mechanical grinding. The integration of the mechanical action in the form of grinding assistance eliminate the major problem of ‘passivation effect’ encountered in normal ECM process. It also removes any re-cast layer formed during EDM part of ECDM. Thus process performance enhances significantly. The GAECD machine with multiple axes manipulator was designed and developed in advanced manufacturing laboratory, IIT Roorkee. Subsequently, another configuration of GAECD machine was designed and developed. This second facility can perform machining of cylindrical work parts.
- Ultrasonic drilling on fiber reinforced composites: A pioneer work of drilling on fiber reinforced composites was successfully done using Ultrasonic drilling process. The setup for the same was developed in-house with suitable modifications in commercially available ultrasonic machine.
- Development of Near-Dry Electric Discharge Machining (EDM) Facility: An environment friendly process variant of EDM was developed in-house. The conventional liquid dielectric was replaced by two-phase dielectric (gaseous and liquid phase). The advantage being no harmful fumes are liberated while machining. This results in process being economical and eco-friendly. The developed process provided material removal rate and surface quality in comparison with conventional EDM higher by nearly five times and three times, respectively. This facility was designed and developed in-house.
- Development of Rotary Tool Near-Dry Electric Discharge Machining (EDM) Facility: The capabilities of Near-Dry Electric Discharge Machining (EDM) process were improved manifold by providing tool rotation during multi-phase flow of dielectric medium. The developed process provided material removal rate and surface quality in comparison with conventional EDM higher by nearly ten times and five times, respectively.
- Development of Electric Discharge Form Machining (EDFM) facility: The EDFM is a process variant of conventional EDM. A pioneer work in obtaining free form surfaces machined by EDM was achieved by in-house development of 5-axes manipulator. The manipulator provided motion to the workpiece in X, Y, U and V axes. Investigations are continued for thread machining, contour machining in macro as well as micro ranges on difficult-to-machine materials.
- Development of Rotary Electric Discharge Machining facility: Rotary tool electric discharge machining (REDM) is a process variant of EDM in which the tool electrode is rotated with simultaneous electrical discharges. The centrifugal force near discharge area in REDM provides effective flushing of inter electrode gap. Consequently, material removal rate and surface finish improves. This facility was developed in-house.
- Development of Magnetic Assisted Abrasive Flow Drilling: The work involved development and optimization of hybrid drilling process for enhancing quality characteristics during drilling on metal matrix composites (MMC). This novel process was developed in-house. Further, this project involved development of new drill point geometry for machining of MMC’s.
- Development of setup for stir casting facility: Manufacturing of Near-Net Shape MMC through development of stir casting retaining its cost effectiveness and still producing acceptable results. A novel setup was developed in-house for fabrication of Near-Net-Shape MMC using stir-squeeze-Quench casting route.
- Development of Powder Electric Discharge Machining (PEDM) facility: Powder Electric Discharge Machining is a process variant of EDM. The powders (conductive/non-conductive) are mixed with dielectric fluid of EDM. The mixing of powders changes the conductivity of the dielectric further and improves spark discharge. This improves material removal rate and produces mirror finish surfaces in hard-to-machine materials. This setup for Powder-EDM was developed in-house - Quality Function Deployment in Service Sector: A case study This project was aimed at improving the Quality of Service functions in the Operation Theatres of hospitals by improving the work environment using Quality Function Deployment. The study was conducted at the Himalayan Institute of Medical Sciences, Jolly Grant, Dehradun, U.K. India. The objective of this project was established after request from H.I.M.S. management. Intensive discussions with the doctors, surgical team and supporting staff along with patients at the above Institute revealed that despite of all care taken in operation theatre there still exist some shortcomings that are generally overlooked. I being the facilitator identified these problems and developed the guidelines to rectify them using the Quality Function Deployment technique.
- Development of Powder Mixed Rotary Tool Electro Discharge Deposition Facility: This process was developed to deposit abrasive particles on micro-tools and other micro-products. The potential of this process is that any powdered material can be made to deposit over a conducting material. The products from this process can be used for micro-fabrication. Additionally, the developed facility can produce surface textures on micro components.
- Innovative device for creating tissue plane cleavage by the hydro - dissection method: Designed and developed an innovative device for creating tissue plane cleavage by hydro-dissection. This device is presently used for cleft lip/palate reconstructive surgery. More than 15000 surgical operations had been performed using this device. This device has reduced cleft palate surgery time to nearly half and had brought down the complication rate to near zero.
- Development of Electrical discharge sawing facility: The electrical discharge sawing process was developed to machine difficult to cut materials such as metal matrix composites (MMCs), Inconel, titanium and tool steels etc. This facility was developed to reduce the high machining cost of abovementioned materials. The developed facility not only increased the productivity but also enhanced the machining quality by providing the better flushing into the inter-electrode gap. The developed facility is capable of fabrication of slits slots in all types of electrically conductive materials.
- Development of micro tool coating system: The development of micro tool coating system was aimed to fabricate low cost diamond coated tools for micro machining applications. In this system, the uniformity of coating layer was ensured through the ultrasonic assistance that was provided to the electrolytic bath. The circulation system was also provided in this system to obviate the problems related with the settle of abrasive particles at the bottom of electrolytic bath.
- Development of modular accessory for mobility enhancement of manual wheel chair: A high quality, modular and compact attachment was developed to provide effortless motion to the manually operated wheelchair. The cost of the developed attachment is only 2.75% of existing products (784% reduction in cost). The attachment is compact, flexible and can be attached to any wheelchair with minor modifications. It is easy to install, lightweight and easy to use.
- Development of magnetic abrasive finishing facility: The magnetic abrasive finishing facility was developed to finish the difficult-to-machine materials such as titanium, tungsten Inconel etc. to enhance their functionality in many industrial applications. The facility is capable to provide nano level surface finish.
- Development of grinding assisted rotary disc electrochemical discharge machining (GA-RDECDM) facility: The developed grinding assisted rotary disk electrochemical discharge machining (GA-RDECDM) process integrates the concept of triplex hybridization. In GA-RDECDM, an abrasive coated rotary disk was used as a tool electrode. The abrasive coated disk provides micro gaps between the tool electrode and work material surface and thereby it results in thin and stable gas film formation. The breakdown of thin and stable gas films produce high frequency, low intensity discharges and consequently improves the machining performance. The additional abrasion that is imparted by rotating disk ensures the continuation of ECDM process. The major contribution of this research work is the development of a novel method for the fabrication of the slits on MMCs, slots and cutting of ceramic materials.
- Development of adaptive feedback controlled electric hydro dissection device: A hydro dissection device with feedback control facility was developed, which can be used for cleft lip and palate surgery. This innovative device provides smooth and controlled injection. Also, the device has special feature of monitoring and recording live data during the surgical procedure.
- Development of pressurized feeding system for ECDM process: The development of pressurized feeding system was motivated to control the working gap during ECDM process. In pressurized feeding system, the exerted pressure over the tool electrode maintains constant working gap (almost zero) between tool tip and work material. There is also a provision in the developed system to hold the work material, and to provide an appropriate feeding motion to maintain constant working gap during machining.
- Development of Adaptive Cutting Force Control System for Process Stability of Micro-USM process: A closed loop adaptive cutting force control system (modular system) was developed to provided excellent control over machining gap in USM process. This system keeps the process in control at all times throughout the machining and ensures improved results with higher efficiency with high quality of machined features. The developed system is flexible and it can also be used for other non-traditional machining processes both in macro and micro domain.
- Development of pressurized tool feeding system for ECDM process: A pressurized tool feeding system was developed for ECDM process. This system provides constant working gap during machining with balancing the feed force at a single location. The developed system can simultaneously machine multiple holes and complicated geometries on a single work material.
- Development of electrolyte filtration system for ECDM process: Electrolyte is an important component of ECDM process. However, the properties of electrolyte changes after a certain period of machining due to contamination (in the form of dissolved particles of anode and machined debris) of electrolyte. Therefore, a filtration system was developed wherein an ultra-membrane filter separate the contaminants during machining. The use of this system improves the usable life of electrolyte.
- Development of Shaped Tube Electrolytic Machining Facility: A facility to drill high aspect ratio holes on difficult to machine materials was developed. An adaptive feed control system was also developed to control inter electrode gap as desired, to work in macro to micromachining domain.
- Development of ultrasonic assisted electrochemical discharge trepanning (UA-ECDT) Facility : The developed facility of ultrasonic assisted electrochemical discharge trepanning (UA-ECDT) process integrates the concept of triplex hybridization. Where a tool electrode was made offset from the spindle axis as per the desired diameter of the hole to be machined, and an orbital motion along with the ultrasonic vibrations was provided to the tool electrode. The integration of ultrasonic vibrations in ECDT process facilitates evacuation of the sludge/debris from the machining zone. Also, it generates thin and stable gas film over the tool electrode. The use of UA-ECDT process improves the energy channelization index (ECI), and exhibits 10 times more ECI than the ECDT process.
- Development of Multi-Phase Flow ECDM Facility: Multi-Phase Flow ECDM facility was developed for drill of high aspect ratio holes on glass and ceramics. This facility extends the discharge regime to hydrodynamic regime.
- Development of a flexible device for multiple ultrasonic machining operations: A modular device was developed for micro-USM process. This device can be used for various machining operations such as drilling, milling, turning and threading on a single ultrasonic machining device.
- Development of Electromagnetic Stir Casting Facility: Electromagnetic stir casting facility was developed to add the particulate reinforcement in to the matrix melt. The objective was to overcome the problems of particle agglomeration and porosity during stir casting.
- Development of Ultrasonic assisted ECDM Facility: Ultrasonic assisted ECDM Facility was developed with objective of enhancing the efficiency of ECDM. This facility in comparisons with conventional ECDM is able to achieve higher depth of machining with low values of hole cut and thermal damage.
- Interactive activities were developed and used in classroom teaching for teaching concepts of statistical quality control and quality management. This improved interaction and participation of students. They also had hands-on experience of using quality tools. b. Live demonstrations of unconventional machining process were given to students for teaching Non-Traditional Machining processes subject. The demonstration also included high speed imaging of different processes.
- Expert lectures delivered / Workshops conducted - “Challenges in developing IPRs in HEIs” invited talk in Training of Trainers program on, Innovation, IP and Entrepreneurship, on 22nd Feb, 2018, IPR Chair, IIT Roorkee.
- “Hybrid Micro-Machining: A NTM approach” invited lecture on 26th July 2017 at IMS, Ghaziabad. - “Advanced Manufacturing in micro-domain: invited lecture on 7th July. 2017 at Moradabad Institute of Technology, Moradabad, UP
- “Micro-Machining, Expert talk on 29th March, 2017 at GEC, Bikaner. - “Advanced Manufacturing”, Expert talk on 30th March, 2017 at College of Engineering & Technology, Bikaner: CET.
- “Non-traditional Micromachining” in course on Advanced Manufacturing Processes-2016 at Aligarh Muslim University under TEQIP, 08-12 Feb, 2016, Aligarh Muslim University.
- “Fabrication of Micro-reactor”, in course on Chemical Micro Process Engineering: Flow Modeling and Applications, 20th June, 2016, at QIP Centre, IIT Roorkee.
- “Development of Hybrid Racing Car”, in course on Ishan Vikas, National Initiative Program for Children of North Eastern States (MHRD), 27th June, 2016, IIT Roorkee.
- “Machining of Ti-6AI-4V Aerospace Material using Near dry EDM” in National Seminar on Indigenous Technology Base for Growth of Aerospace Ecosystem,, 28th November, 2015, Hindustan Aeronautics Limited, Bangalore.
- "Micro channel cutting", in course on Advances in Precision Manufacturing, June 8-12, 2015 at Defense Electronics Application Laboratory (DEAL), DRDO, Dehradun.
- "Advances in nonconventional machining", in course on Advances in Precision Manufacturing, June 8-12, 2015 at Defense Electronics Application Laboratory (DEAL), DRDO, Dehradun.
- “Ultrasonic Micromachining”, in course on Advanced Manufacturing Technology, June 8-12, 2015 at G B Pant Engineering College Pauri - Garhwal.
- “Development of Electrochemical Discharge Machining process for complicated shapes” in course on automation in manufacturing, May 4-15, 2015 at Delhi Technological University, Delhi.
- “Micro-machining of difficult-to-machine materials”, in course on precision manufacturing, July 14-18, 2014 at Department of Mechanical, production & Industrial and Automobile Engineering, Delhi Technological University, Delhi.
- "Micro-Machining", in course on Advances in Mechanical Engineering, May 14th & 15th, 2014 at Noida Institute of Engineering and Technology, Greater Noida.
- “Quality Function Deployment in service sector”, in course on recent advances in industrial engineering”, July 8-12, 2013 at Department of Industrial and Production Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar.
- “Advance Manufacturing Processes”, in one day seminar on October 22nd 2013, at Department of Mechanical Engineering, SHIATS, Allahabad.
- “Hybrid Machining”, March 17th, 2012 at GEC, Bikaner, Rajasthan.
- “Enhancing Organizational Competitiveness Change management”, June 7th & 8th, 2010 at Department of Industrial and Production Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar.
- “Advances in Mechanical Engineering”, March 23rd, 2009 at Faculty of Technology and Engineering, M.S. University of Baroda, Vadodara.
- “Enhancing Organizational Competitiveness in the Era of Globalization & Liberalization”, Jan 4th & 5th, 2010 at Department of Industrial and Production Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar.
- “QFD for Chemical Engineers”, September 16th, 2005 at Fussitech-2005, Institute of Technology & Management, Gwalior.
-Member, Pneumatic and Hydraulic Tools Sectional Committee, PGD 08, Bureau of Indian Standards.
-Reviewer for Journal of Micromanufacturing, The International Journal of Advanced Manufacturing Technology, Journal of Manufacturing Processes, International Journal of Mechanical Sciences, Ultrasonics, International Journal of Machining and Machinability of Materials, Journal of Composite Materials, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Machine Tools and Manufacture, Measurement, JMPT, etc.
-Member, Board of Studies at Uttarakhand Technical University.
-Member, Advisory at Graphic Era Hill University
-Member, Research Advisory Committee at DTU, Delhi.
-Member, Research Advisory Committee at NIT Jalandhar.
-Member, 43rd National Systems Conference on Innovative and Emerging Trends in Engineering Systems, IIT Roorkee, Dec 6-8, 2019.
-Member, International Advisory Council, 6th International Conference on Production & Industrial Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, June 8-10, 2019
-Member, National Advisory, International Conference on Advances in Business and Engineering For Sustainability, ABES Engineering College, Ghaziabad, March 27-28, 2018.
-Member, Technical Advisory Committee, 2nd International Conference on Computational & Experimental Methods in Mechanical Engineering, G.L. Bajaj Institute of Technology & Management, Greater Noida, May 3 - 5, 2019.
-Member, Technical Committee, 1st International Conference on Future Learning Aspects of Mechanical Engineering (FLAME - 2018), Amity School of Engineering & Technology, Amity University, Oct 3 – 5, 2018.
-Member, Media and Publicity, Processing and Fabrication of Advanced Materials: XXIII, Department of Mechanical & Industrial Engineering Indian Institute of Technology Roorkee, Dec 5-7, 2014.
-Member, Advisory Committee, 1st International and 16th National Conference on Machines and Mechanisms (iNaCoMM 2013), IIT Roorkee, Dec. 18 -20, 2013.
-Member, Programme Committee for International Conference on Recent Trends in Mechanical Engineering (RTME2013), Dubai, UAE, May 18-19, 2013.
-Member, International Advisory Committee for 3rd International Conference on Production and Industrial Engineering, NIT Jalandhar, March 29-31, 2013.
-Member, International Advisory Committee for International Conference on Sustainable Manufacturing and Operations Management (ISOM-2013), University of Mauritius, June 26-28, 2013.
-Member, Programme Committee for International Conference on Recent Trends in Mechanical Engineering (RTME2013), Dubai, UAE, May 18-19, 2013.
-Member, Core team for “Champions for Societal Manufacturing (Visionary Leaders for Manufacturing”, a post graduate programme for experienced managers, jointly organized by IIM Kashipur and IIT Roorkee.
-Nominated for Training of Trainers (ToT) Program for designing the course on Materials Management and Quality Assurance for Capacity Building Training Programme in joint collaboration with IIT Kanpur and IMI Kolkata for Ministry of Power, GOI and Power Finance Cooperation.