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Karunakar, D. Benny
D. Benny Karunakar Associate Professor bennyfme[at]iitr.ac.in 01332-285492
Areas of Interest
  • Manufacturing Science, Metal Casting, FEM in Manufacturing, CAD/CAM, Nano-composites
Professional Background
FromToDesignationOrganisation
2015Till dateAssociate ProfessorI.I.T. Roorkee
20082015Assistant ProfessorI.I.T. Roorkee
20062008ProfessorSynergy Institute of Engineering & Technology, Dhenkanal, Orissa
20052006Assistant ProfessorBhadrak Institute of Engineering & Technology, Bhadrak, Orissa
19961997LecturerHindustan College of Engineering, Kelambakkam, TN
19921996LecturerKarunya Institute of Technology, Coimbatore, TN
Educational Details
DegreeSubjectUniversityYear
B.TechMechanical EngineeringJNTU College of Engineering, Anantapur, AP1988
M.TechManufacturing EngineeringIndian Institute of Technology Kharagpur1999
PhDCAD/CAM in Metal CastingIndian Institute of Technology Kharagpur2005
Memberships
  • Indian Society for Technical Education, New Delhi, Life Member
  • Institute of Indian Foundrymen, Kolkata, Associate Member
Visits to outside institutions
Institute VisitedPurpose of VisitDate
University of Nagoya, JapanTo present a research paper in the 72nd World Foundry Congress.May 2016
University of North Carolina, USATo present a research paper in the ASME Conference on Manufacturing Engineering.June 2015
Israel Institute of Technology (Technion), Haifa, IsraelTo present a research paper in the 16th Israel Materials Engineering Conference.Feb 2014
SwitzerlandTo present a research paper.Jan 2012
Imperial College of Science & Technology, London, UKTo present a paper in World Congress on Engineering 2010June 2010
University of Erlangen, Nuremberg, GermanyTo present research work in the Centre for Metals Science and TechnologyAug 2007
The University of Sheffield, UKTo present a research paper in 5th Decennial International Conference on Solidification Processing.July 2007
Refereed Journal Papers
1.    Ch.S. Vidyasagar and D.B. Karunakar, "Microstructure and mechanical properties of spark plasma sintered 2024 AA reinforced with nano yttrium", Accepted for publication in the Elsevier Materials Today: Proceedings
2.    Khyati Tamta, Umesh Wankhede and D.B. Karunakar, "Investigations on modification of binder system in investment casting", International Journal of Research in Engineering and Technology, Vol. 5, Issue 13, (Sep 2016), pp 122-124
3.    D.B. Karunakar and Khyati Tamta "Enhancing the porosity and properties of the ceramic shell in investment casting process", Indian Foundry Journal, Vol. 62, Issue 5 (May 2016), pp 28-31
4.    Sarojrani Pattnaik, P.K. Jha and D.B. Karunakar, "A novel method of increasing ceramic shell permeability and optimizing casting shrinkage and tensile strength of the investment cast parts", Proceedings of Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture, Vol. 231 (2017) pp 377-388
5.    Khyati Tamta and D.B. Karunakar, “Enhancement of porosity of the ceramic shell in investment casting process using needle coke and camphor”, Applied Mechanics and Materials, Vol. 592 (2014), pp 269-275
6.    Sarojrani Pattnaik, D.B. Karunakar and P.K. Jha, “Developments in Investment Casting Process - A Review”, Elsevier Journal of Materials Processing Technology, Vol. 212 (2012), pp 2332 -2348 (1st downloaded paper among the Elsevier journals during 2013)
7.    Saroj Rani Pattnaik, D.B. Karunakar and Pradeep Kumar Jha, “Optimization of multiple responses in the lost wax process using Taguchi method and grey relational analysis”, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials Design and Applications, Vol. 227 (2012), pp 156-167
8.    Saroj Rani Pattnaik, Pradeep Kumar Jha and D.B. Karunakar, “A review of rapid prototyping integrated investment casting processes”. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials Design and Applications. DOI: 10.1177/1464420713479257 (6th most downloaded article of Sage publications during 2014)
9.    A.K. Birru, D.B. Karunakar and M.M. Mahapatra, “A study on hot tearing susceptibility of Al-Cu, Al-Mg and Al-Zn alloys”, Transactions of the Indian Institute of Metals, Vol. 65, (Feb 2012), pp 97-105
10. A.K. Birru, D.B. Karunakar and M.M. Mahapatra, “Fluidity of A713 cast alloy with and without scrap addition using double spiral fluidity test: A comparison”, International Journal of Mechanical and Aerospace Engineering, Vol. 6 (2012), pp 92-96
11. A.K. Birru, M.M. Mahapatra, D.B. Karunakar and Pradeep Kumar, “A study on fluidity and hot-tearing of A206, A518 and A713 cast alloys”, Indian Foundry Journal, Vol. 57, No. 1 (Jan 2011), pp 38-45
12. Khyati Tamta and D.B. Karunakar, “Intensification of mechanical properties of the investment shell using camphor”, International Journal of Engineering Development and Research, Vol. 2, Issue 2 (2014), pp 675-679
13. Doli Rani and D.B. Karunakar, “Recycling of pattern wax in the investment casting process using microwave dewaxing”, IOSR Journal of Engineering, Vol. 3, Issue 5 (May 2013), pp 05-10
14. Saroj Rani Pattnaik, D.B. Karunakar and Pradeep Kumar Jha, “Multi-characteristic optimization of wax patterns in the investment casting process using grey-fuzzy logic”, International Journal of Advanced Manufacturing Technology, Vol. 67 (2012) pp 1577–1587
15. Faraz Ansari, A.K. Sharma and D.B. Karunakar, “Experimental investigations on stirring assisted electrochemical discharge machining”, i-manager’s Journal on Mechanical Engineering, Vol. 3, No. 2 (Feb 2013), pp 16-20
16. Sarojrani Pattnaik, D.B. Karunakar and P.K. Jha, “Influence of injection process parameters on dimensional stability of wax patterns made by the lost wax process using Taguchi approach”, Proceedings of the Institution of Mechanical Engineers, Part L, Journal of Materials: Design and Applications, Vol. 227 (2012), pp 52-60
17. D.B. Karunakar, Ram Naresh Rai, S. Patra and G.L. Datta, “Effects of grain refinement and residual elements on hot tearing in aluminum castings”, Springer International Journal of Advanced Manufacturing Technology, Vol. 45, No. 9-10 (Dec 2009), pp 851-858
18. D.B. Karunakar and G.L. Datta, “Prevention of defects in castings using back propagation neural networks”, Springer International Journal of Advanced Manufacturing Technology,  Vol. 39 (2008), pp 1111-1124
19. D.B. Karunakar and G.L. Datta, “Prediction of defects in castings using back propagation neural networks”, Inderscience International Journal of Modelling, Identification and Control, Vol. 3, No. 2 (2008), pp 140-147
20. D.B. Karunakar and G.L. Datta, “Controlling green sand mould properties using artificial neural networks and genetic algorithms – A comparison” Elsevier Journal of Applied Clay Science, Vol. 37 (June 2007), pp 58-66
21. G.L. Datta and D.B. Karunakar, “A study on the hot tearing in AL–1% Sn cast alloys”, IMechE, Part B: Journal of Engineering Manufacture (UK), Volume 220, No. 7 (July 2006), 1131-1139
22. D.B. Karunakar and G.L Datta, “A comparison between control of cupola furnace using artificial neural networks and genetic algorithms”, Journal of The Institution of Engineers (India), Production Engineering Division, Vol. 86 (March 2006), pp 58-62
23. D.B. Karunakar and G.L. Datta, “Modelling of green sand mould parameters using artificial neural networks”, Indian Foundry Journal, Vol. 49, No. 12 (Dec 2003), pp 27-36
24. D.B. Karunakar and G.L. Datta, “Modelling of cupola furnace parameters using artificial neural networks”, Indian Foundry Journal, Vol. 48, No. 5 (May 2002), pp 29-39

 PUBLICATIONS IN CONFERENCES

1.    Khyati Tamta, D.B. Karunakar and W.U. Pralhad "Enhancement of porosity and mechanical properties of ceramic shell in investment casting process by the addition of camphor and needle coke/wax powder- A comparison" Accepted for presentation at the 72nd World Foundry Congress, to be held at Nagoya, Japan during May 21-25, 2016.
2.    D.B. Karunakar and Khyati Tamta "Enhancing the Porosity and Properties of the Ceramic Shell in Investment Casting Process", Proceedings of the 64th Indian Foundry Congress, held at Coimbatore during Jan 29-31, 2016.
3.    Ganapat Rai and D.B. Karunakar, “Improvement of micro-structure and mechanical properties in the hyper-eutectic Al-Si cast alloys through barium and grain refiner additions, 10th ASME 2015 Manufacturing Science and Engineering Conference, June 8-12, 2015, Charlotte, University of North Carolina, USA
4.    Ganapat Rai and D.B. Karunakar, “Micro-refinement of Al-Si alloys melt in the sand casting process using barium and grain refiner additions”, 16th Israel Materials Engineering Conference, Feb 23-25, 2014, Technion, Israel 
5.    Doli Rani and D.B. Karunakar, “A new method for dewaxing in investment casting process“, National Conference on Advances in Manufacturing Technology, May 23-24, 2013, NITTTR Chandigarh
6.    Rajendra Arya, A. Dvivedi, D.B. Karunakar and U. Vishwakarma, “Modeling of material removal mechanism of EDM for Al6063SiC metal matrix composite”, International Conference on Advances in Manufacturing Technology, 15-17 June 2012, Chennai Institute of Technology, Chennai, India
7.    Sarojrani Pattnaik, D.B. Karunakar and P.K. Jha, “Optimal selection of process parameters in investment casting process using Taguchi approach”, Proceedings of Int. Conference on Mechanical, Industrial and Manufacturing Engineering, January 15-17, 2012, Zurich, Switzerland, pp 1133-1140
8.    Sarojrani Pattnaik, D.B. Karunakar and P.K. Jha, “Prediction of wax pattern characteristics in investment casting process using fuzzy logic modeling”, International Simulation Conference of India, Feb 2-4, 2012, IIT Bombay
9.    A.K. Birru, D.B. Karunakar and M.M. Mahapatra, “Fluidity of A713 cast alloy with and without scrap addition using double spiral fluidity test: A comparison”, Proceedings of Int. Conference on Mechanical, Industrial and Manufacturing Engineering, January 15-17, 2012, Zurich, Switzerland, pp 1059-1063
10.  Omkar Bemblage and D.B. Karunakar, “A study on the blended wax patterns in investment casting process”, Proceedings of World Congress on Engineering 2011, July 6-8, 2011, Imperial College, London, UK, pp 721-727
11.  S.R. Pattnaik, D.B. Karunakar and P.K. Jha, “Optimization of gate location with least defects in plastic injection moulding” Proceedings of the 5th International Conference on Advances in Mechanical Engineering (ICAME-2011), June 06-08, 2011, S.V. National Institute of Technology, Surat – 395007, India, pp 726-730
12A.K. Birru, M.M. Mahapatra, D.B. Karunakar and Pradeep Kumar, “Exploration of crack initiation during hot tearing in A206 and 713 alloys” Proceedings of 59th Indian Foundry Congress - 2011, February 11-13, 2011, Chandigarh, pp 344-362 
13Omkar Bemblage, Ankit Rana and D.B. Karunakar, “Optimization of Wax Blend Composition in Investment Casting Process using Taguchi Method”, Proceedings of International Conference on Investment Casting, Jan 22-24, 2010, CMERI Durgapur.
14.  D.B. Karunakar, “Modelling the effect of chemical elements on hot tearing in aluminum castings”, Proceedings of 5th Decennial International Conference on Solidification Processing, July 23-25, 2007, University of Sheffield, UK, pp 704-709  
15.  D.B. Karunakar and G.L. Datta, “A study in the hot tearing in Al-1% Sn cast alloys”, Proceedings of 67th World Foundry Congress, Harrogate, United Kingdom, 5-7th June, 2006, pp 007/1-007/10
16D.B. Karunakar and G.L. Datta, “Modelling and optimization of green sand mould parameters using genetic algorithms”, Transactions of Institute of Indian Foundrymen, 2003, pp 262-267

17. D.B. Karunakar and G.L. Datta, “Optimisation of cupola furnace parameters using genetic algorithms”, Proceedings of International Conference on Manufacturing 2002, 9-11 August 2002, Dhaka, Bangladesh, pp 387-393