Birla Institute of Technology, Mesra
   
DR. RATNESH KUMAR
Assistant Professor , Mechanical Engineering
Ph. D., IIT (ISM) Dhanbad
Contact Address
Residence Address mechanical engineering department, Birla Institute of Technology, Mesra, Ranchi, Jharkhand
Permanent Address mechanical engineering department, Birla Institute of Technology, Mesra, Ranchi, Jharkhand
Phone (Office) 7549023950
Phone Residence 7549023950
Email Id ratan_876@yahoo.co.in
   Joined Institute on : 2-Jan-2018

  Work Experience
 
Teaching : 03 Years

Research : 03 Years

Individual: 01 Years


  Professional Background
 

One year industrial experience in Siemens India Ltd. Kharagpur Works.


  Research Areas
 

Heat transfer in welding, manufacturing processes, Friction stir welding



   Publications
 

Journal Publications

1.    Surface Integrity analysis of abrasive water jet cut surface of Friction stir welded Joint
       Ratnesh Kumar,S. Chattopadhyaya, A. R. Dixit, B. Bora, M. Zelenak, J. Foldyna, S. Hloch, P. Hlavacek, J. Scucka, J. Klich, L. Sitek, P. Vilaca
       International Journal of Advanced Manufacturing Technology (ISSN 0268-3768) 2017; 88 (5-8); 1687-1701 (SCI Indexed)

2.    Wear characteristics and defects analysis of friction stir welded joint of aluminium alloy 6061-T6
       Ratnesh Kumar, S. CHATTOPADHYAYA, S. HLOCH, G. KROLCZYK, S. LEGUTKO
       EKSPLOATACJA I NIEZAWODNOSC – MAINTENANCE AND RELIABILITY (ISSN 1507-2711), 2016; 18 (1); 128-135 (SCI Indexed)

3.    Heat input effect of friction stir welding on aluminium alloy AA 6061-T6 welded joint
       A. S. SEDMAK, Ratnesh Kumar, S.  CHATTOPADHYAYA, S. HLOCH, S. S. TADIC, A. A. DJURDJEVIC, I. R. CEKOVIC, E. DONCEVA
       Thermal Science (ISSN 2334-7163), 2016; 20 (2); 637-641 (SCI Indexed)

4.    Effect of laser power and welding speed on Microstructure and Mechanical properties of Fiber laser welded Inconel 617 thin sheet
       Prabhat Kumar, Kanhaiya Saw,Uday Kumar,Ratnesh Kumar,Somnath Chattopadhyaya, Sergej Hloch
      Journal of Brazilian Society of Mechanical Sciences and Engineering (ISSN 1678-5878), 39 (11), 4579-4588, 2017 (SCI Indexed)

5.    Characterization of Friction Surfaced Coatings of AISI 316 Tool over High-Speed-Steel Substrate
       Ravi Kumar, Somnath Chattopadhyaya, Aniruddha Ghosh, Grzegorz Krolczyk, Pedro Vilaca, Ratnesh Kumar, Madhulika Srivastava, Mohammed Shariq, Rupam Tripathi
       Transactions of FAMENA (ISSN 1333-1124), 41 (2), 61-76, 2017 (SCI Indexed)

6.    Experimental and mathematical evaluation of thermal and tensile properties of friction stir welded joints
       Ratnesh Kumar, Bhabani Bora, Somnath Chattopadhyaya, Grzegorz Krolczyk, Sergej Hloch
       International journal of materials and product technology (ISSN 1741-5209), (57), 204-229, 2018 (SCI Indexed)

7.    Investigation of microstructure and mechanical properties of titanium alloy sheet using loe power Nd-YAG laser welding process
       Uday Kumar, Deepak k Gope, Ratnesh Kumar, Somnath Chattopadhyaya, Alokesh Pramanik, Grzegorz Krolczyck
       Kovove Materialy- Metallic Materials (ISSN 1338-4252), 56, 121-129, 2018 (SCI Indexed)

8.    Effect of Process Parameters on Mechanical Properties of Friction Stir.Welded Joint of Two Dissimilar Al-Alloys
       Umasankar Das, Ratnesh Kumar, Vijay Toppo
       International Journal of Engineering Research and Technology, 4; (8); 2015

9.    Defects Analysis of T-Joint Friction Stir Welded Samples of Aluminium Alloy 6101-T6
       Ratnesh Kumar, Dharmendra Kumar Prasad, Shabbir Ali, Sachindra Shankar, Somnath Chattopadhyaya
       International Journal of Advanced Technology in Engineering and Science (IJATES) (ISSN 2348-7550), vol. 04, Issue 04, April 2016

10.  Study of Surface Morphology and Defects analysis of Friction Stir Welded AA 6101 Aluminium Alloy
       Ratnesh Kumar, Dharmendra Kumar Prasad, Shabbir Ali, Sachindra Shankar, Somnath Chattopadhyaya
       International Journal of Advanced Technology in Engineering and Science (IJATES) (ISSN 2348-7550), vol. 04, Issue 03, March 2016

International Conference Papers

1.    Experimental and theoretical investigation of process parameter on temperature development during friction stir welding
       Ratnesh Kumar,B. BORA, P. KUMAR, S. CHATTOPADHYAYA
       International TEAM 2014 Conference, 6th International Scientific and Expert Conference of International Team Society (ISBN 978-615-5192-22-7)
       November 10-11, 2014, Hungary

2.    Study of Surface Morphology of Water Jet cut Surface of Friction Stir Welded Joint
       Ratnesh Kumar,D. K. PRASAD, S. ALI, S. SHANKAR, S. CHATTOPADHYAYA, R. KUMAR, S. HLOCH, M. ZELENAL
       International TEAM 2015 Conference, Technique, Education, Agriculture & Management (ISBN 978 – 86 -7083 – 877 – 2)
       October 15-16, 2015, Belgrade

3.    Friction Stir Welding of BMG’s: A Review
       R. KUMAR, S. CHATTOPADHYAYA, A. GHOSH, Ratnesh Kumar, A. KUMAR
       International TEAM 2015 Conference, Technique, Education, Agriculture & Management (ISBN 978 – 86 -7083 – 877 – 2)
       October 15-16, 2015, Belgrade

4.    Analysis of Surface Profile using Optical Pyrometer of Abrasive Water Jet Surface of Friction Stir Welded Joints
      Ratnesh Kumar,S. CHATTOPADHYAYA
      International Topical Conference on Charged Particle Collisions and Electronic Processes in Atoms, Molecules and Materials 2016, q-Pace-2016
      January 9-11, 2016, Indian School of Mines, Dhanbad, India

5.    Defects analysis of T-Joint friction stir welded samples of aluminium alloy 6101-T6
      D. K. PRASAD, S. ALI, S. SHANKAR, Ratnesh Kumar, S. CHATTOPADHYAYA
      3rd International Conferences on Recent Trends in Engineering Science and Management
      10th April 2016, Vedant College of Engineering and Technology, New Delhi, India

6.    Study of surface morphology and defects of friction stir welded AA6101 aluminium alloy
       D. K. PRASAD, S. ALI, S. SHANKAR, Ratnesh Kumar,S. CHATTOPADHYAYA
       4th International Conference on Recent Innovations in Science, Engineering and Management
       20th March 216, India International Centre, New Delhi, India


National Conference Papers

1.    Temperature assessment of friction stir welding process Temperature assessment of friction stir welding process
       Ratnesh Kumar,B. BORA, P. KUMAR, S. CHATTOPADHYAYA
       AITE 2014, Advances in Thermal Engineering 2014 (ISBN 978-93-84224-21-9)
      December 19-20, 2014, Indian School of Mines, Dhanbad

2.    Some Investigation of Unique Defects in Friction Stir Welding Process- A Review
       Ratnesh Kumar, Deepak Kumar Gope, Uday Kumar, S. CHATTOPADHYAYA
       MENTCA 2015, Mining Equipment: New Technologies, Challenges & Applications 2015
       October 9-10, 2015, Indian School of Mines, Dhanbad, India

3.    Microanalysis of gas metal arc welded mild steel plates
       Deepak Kumar Gope, Ratnesh Kumar, , Uday Kumar, S. CHATTOPADHYAYA
       MENTCA 2015, Mining Equipment: New Technologies, Challenges & Applications 2015
       October 9-10, 2015, Indian School of Mines, Dhanbad, India

4.    Investigation of heat affected zone of Nd-Yag laser welding process of thin titanium alloy sheet
       Uday Kumar, Deepak Kumar Gope, Ratnesh Kumar, S. CHATTOPADHYAYA
       MENTCA 2015, Mining Equipment: New Technologies, Challenges & Applications 2015
       October 9-10, 2015, Indian School of Mines, Dhanbad, India

 





  Patent
 

Filed a patent application with application no 201731004136 titled “Friction stir welding joint sample machining apparatus and method”.