International Conference

46. D. Das, S. Bag, S. Pal and M. R. Amin: Prediction of Surface Profile in Friction Stir Welding Using Coupled Eulerian and Lagrangian Method, IMECE 20, November 16-19, 2020, Virtual, Online


45. S. Bag and M. R. Amin: Development of an arbitrary adaptive volumetric heat source model for keyhole mode laser welding process, IMECE 18, November 9-15, 2019, Salt Lake City, Utah, USA.


44. B Kumar and S Bag: Effect of pulsation on temperature distribution of laser-welded dissimilar joint of thin sheet, ICCMM 2019, 8 - 9 March 2019, IIT Guwahati, India.


43. A K Sahu and S Bag: Finite element modeling and experimental verification of dissimilar joining between Inconel 718 and SS 316L by micro-plasm arc welding, ICCMM 2019, 8 - 9 March 2019, IIT Guwahati, India.


42. S. Bag and M. R. Amin: Thermal stress associated with non-Fourier heat conduction in femtosecond laser heating of multilayer metallic films, IMECE 18, November 9-15, 2018, Pittsburgh, PA, USA.


41. A. K Sahu and S. Bag: Effect of pre-weld solution treatment on mechanical and microstructural properties of µ-plasma arc welded Inconel 718, AIMTDR 2018, December 13-15, 2018, Chennai.


40. A. Mishra, S. Pal and S. Bag: Electro-magnetic transient-thermal modeling of high-frequency induction welding of mild steel plates, AIMTDR 2018, December 13-15, 2018, Chennai.


39. B. Kumar, R. Nawani and S. Bag: Effect of mechanical constraints on thermo mechanical behaviour of laser welded dissimilar joints, AIMTDR 2018, December 13-15, 2018, Chennai.


38. S Dwibedi, S. Bag, D K Lodhi and A Kalita: Joining of different thickness dissimilar materials SS 316L/SS310 by µ-PAW process, AIMTDR 2018, December 13-15, 2018, Chennai.


37. B. Kumar, M. Baruah and S. Bag: On the effect of heat input in cooling rate and microstructure of laser welded Ti-6Al-4V alloy, Advances in Materials & Processing Technologies, December 11-14, 2017, Chennai, India.


36. S. Bag, D. K. Yaduwanshi and S. Pal: Role of physical variables in dynamic recrystallization during friction stir welding of aluminium alloy, Advances in Materials & Processing Technologies, December 11-14, 2017, Chennai, India.

35. A. Sahu and S. Bag: Micro-plasma Arc welding of Inconel718 thin Sheets, 5th International Congress of the International Institute of Welding, 7th - 9th December, 2017, Chennai, India.


34. S. Bag: Feasibility of dissimilar microwelding using femtosecond pulse laser, 5th International Congress of the International Institute of Welding, 7th - 9th December, 2017, Chennai, India.


33. B. Das, S. Pal and S. 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.


32. S. Bag: Microscale heat transfer in fusion welding of glass by ultra-short pulse laser using dual phase lag effects, International Conference on Recent Advances in Materials & Manufacturing Technologies (IMMT 2017), 28th - 29th November, 2017, Dubai. (IOP Conference Series)


31. S. Bag and M. R. Amin: Simulation based study on ultra-short pulse laser welding of dissimilar materials expending phase lag influence, IMECE 17, November 3 - 9, 2017, Tampa, Florida, USA.


30. B. Das, S. Pal and S. Bag: Wavelet transform based defect identification in friction stir welding process, AIMTDR 2016, 16th - 18th December, 2016, Pune.


29. M. Baruah and S. Bag: Analysis of temperature of microplasma arc welding of 0.5 mm Ti6Al4V sheets, 1rst International Conference on Materials, Manufacturing and Design Engineering (iCMMD 2016), 20 – 21th December, 2016, Vidyavihar, Raigad, Maharashtra, India.


28. M. Baruah and S. Bag: Effect of peak power on joint characteristics of pulse laser welding of 0.5 mm Ti6Al4V sheets, AIMTDR 2016, 16th - 18th December, 2016, Pune.


27. B. Das, S. Pal and S. Bag: Machine vision system based monitoring approach for friction stir welding process, IEEE first international Conference on Control, Measurement and Instrumentation (CMI 2016), 8 - 10th January, 2016, Jadavpur University, Kolkata. (DOI:10.1109/CIM.2016.7413715)


26. B. Das, S. Pal and S. Bag: Defect detection in friction stir welding process using signal information and fractal theory, 12th International Conference on Vibration Problems (ICOVP 2015), 14 - 17 th December, 2015, IIT Guwahati, Assam.


25. B. Das, S. Pal and S. Bag: Neurofractal modeling of weld quality in friction stir welding, International Conference on Cutting, Welding and Surfacing (CWS 2015), 5 -7th August, 2015, Coimbatore. (Best technical paper award)


24. M. Baruah and S. Bag: Analysis of plasma micro welded Ti‑6Al‑4V sheets, International Conference on Laser and Plasma Applications in Materials Science (LAPAMS 2015), 15 – 17th January, 2015, Kolkata.


23. J. Kalivarapu, S. Jain and S. Bag: Development of self-consistent multi objective harmony search algorithm, The 5th International Conference on Swarm, Evolutionary and Memetic Computing(SEMCCO 2014), 18-20th December, 2014, Bhubaneswar, Odisha. (LNCS 8947, Chapter 48)


22. M. Baruah and S. Bag: Experimental and Numerical Investigation of Micro Plasma Welded Ti‑6Al‑4V sheets, International Symposium on Aspects of Mechanical Engineering & Technology for Industry (AMETI 2014), 6 – 8th December, 2014, NERIST, Arunachal Pradesh.


21. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: An experimental investigation on fiber laser welding at controlled inert gas atmosphere, 5th International and 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR), 12th – 14th December, 2014, IIT Guwahati.


20. A. K. Mondal, P. Biswas, S. Bag and Manas M Mohapatra: Prediction of weld induced angular distortion of single sided and double sided fillet joint by saw process, 5th International and 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR), 12th – 14th December, 2014, IIT Guwahati.


19. D. Yaduwanshi, S. Pal and S. Bag: Effect of Preheating on Mechanical Properties of Hybrid Friction Stir Welded Dissimilar Joint, 5th International and 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR), 12th – 14th December, 2014, IIT Guwahati.


18. B. Das, S. Pal and S. Bag: Monitoring of friction stir welding process through signals acquired during the welding, 5th International and 26th All India Manufacturing Technology, Design and Research Conference (AIMTDR), 12th – 14th December, 2014, IIT Guwahati.


17. S. Bag: Optimization of penetration depth by pulse shaping in laser microwelding of stainless steel, Advancements in Welding, Cutting & Surfacing Technologies for Improved Economy, Reliability & Sustainable Environment, IIW International Congress 2014, 9th - 11th April, 2014, New Delhi.


16. D. Yaduwanshi, S. Pal and S. Bag: Dissimilar hybrid friction stir welding of pure copper and AA1100, Advancements in Welding, Cutting & Surfacing Technologies for Improved Economy, Reliability & Sustainable Environment, IIW International Congress 2014, 9th - 11th April, 2014, New Delhi.


15. M. Baruah and S. Bag: Investigation on micro plasma welding of titanium alloy, Advancements in Welding, Cutting & Surfacing Technologies for Improved Economy, Reliability & Sustainable Environment, IIW International Congress 2014, 9th - 11th April, 2014, New Delhi.


14. A. Mondal, P. Biswas and S. Bag: Effect of process parameters on microstructure and mechanical properties of single pass single-sided square butt joint by submerged arc welding, Advancements in Welding, Cutting & Surfacing Technologies for Improved Economy, Reliability & Sustainable Environment, IIW International Congress 2014, 9th - 11th April, 2014, New Delhi.


13. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Efficient Finite Element Modeling of Fiber Laser Welding Process under Conduction Regime on 316 Stainless Steel Plate, International Conference on Advances in Mechanical Sciences (ICAMS2014), 9th -11th January, 2014, Vardhaman College of Engineering, Hyderabad. (awarded one of the best papers)


12. S. Bag and P K. Sahu: Influence of pulse shaping in thermal analysis of ultra-shot pulse laser welding using non-Fourier heat conduction, 22nd National and 11th International ISHMT-ASME Heat and Mass Transfer Conference, 28th – 31st December, 2013, IIT Kharagpur, India.


11. N. Yadaiah, S. Bag, C. P. Paul and L. M. Kukreja: Fiber laser welding of austenitic stainless steel in protective atmosphere of argon, Recent Development in Welding and Joining Technologies, 7th Asia Pacific IIW International Congress, 8th - 10th July, 2013, Singapore.


10. D. Yaduwanshi, S. Bag and S. Pal: Thermal analysis on plasma assisted friction stir welding of aluminum alloy, Recent Development in Welding and Joining Technologies, 7th Asia Pacific IIW International Congress, 8th – 10th July, 2013, Singapore.


9. A. Mondal, P. Biswas and S. Bag: Effect of process parameters on residual stress distribution of submerge arc welded butt joint, Recent Development in Welding and Joining Technologies, 7th Asia Pacific IIW International Congress, 8th – 10th July, 2013, Singapore.


8. A. Mondal, R. Ranjan, P. Biswas and S. Bag: Finite element analysis of weld induced residual stress of double sided fillet welded joint’, Processing and Fabrication of Advanced Materials XXI, 10th – 13th December, 2012, Guwahati, India.


7. S. Bag, D. V. Kiran and A. De: Efficient estimation of volumetric heat source in fusion welding process simulation, 64th IIW Annual Assembly (Commission IX), 17th – 21st July, 2011, Chennai, India.


6. S. Bag and N. Yadaiah : Possible role of surface active elements in weld pool modelling of fusion welding process, International Conference on Computational Methods in Manufacturing (ICCMM 2011), 15th -16th December, 2011, IIT Guwahati, India.


5. R.E. Loge, S. Bag, K. Huang and M. Bernacki: Modelling dynamic and static recrystallization using mean field and finite element methods, Thermec 2011; 01/2011.


4. R.E. Loge, H. Resk, S. Bag, K. Huang and M. Bernacki: Modelling deformation and recrystallization in metals using digital microstructures and mean field methods, KomPlasTech 2011; 01/2011.


3. S. Bag and A. De: Three dimensional heat transfer modeling of laser beam welding using adaptive volumetric heat source and GA based optimization of absorption coefficient, International Conference on Welding (IIW IC - 2008), Organized by Indian Institute of Welding (IIW) in association with International Institute of Welding, 8th - 10th January, 2008, Chennai, India. (Awarded H D Govindraj Memorial Research Award for best research paper)


2. S. Bag, A. Trivedi and A. De: Reliable estimation of laser weld pool using numerical modeling and multivariate optimization, 1st International and 22nd All India Manufacturing Technology Design and Research Conference, 21st - 23rd December, 2006, IIT Roorkee, India.


1. A. Trivedi, S. Bag and A. De: Three dimensional transient heat conduction and thermomechanical analysis for laser spot welding using adaptive heat source, Computer Aided Welding Engineering - 2006, 19th - 21st October, 2006, Shandong University, Jinan, P. R. China.