Mr. KL.Hari Krishna


 Associate Professor

  Dr. K L.Hari Krishna M.Tech, Ph.D

  Entn: 422


Dr. KL. Hari Krishna, Associate Professor in the Department of Mechanical Engineering. He has obtained his M.Tech (Design and Production Engineering) from Regional Engineering College, Warangal, Andhra Pradesh. He completed his Ph.D. Degree in Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, in the area of welding (Friction Stir Welding, Laser Beam Welding and Gas Tungsten Arc Welding) of Magnesium alloy. He has 16 years of teaching experience.

 Prior to joining SSN, he was worked in Raja Rajeswari Engineering College, Chennai and St.Peters Engineering College, Chennai. He has six publications in international journal to his credit.Also he presented his research papers in various prestigious institutions. He teaches Engineering Graphics, Engineering Mechanics, Kinematics of Machinery, Dynamics of Machinery, Design of Machine Elements, Design of Transmission Systems and Industrial Robotics. He received Best Teacher Award in SSN College of Engineering during the academic year 2008-09 and 2009 – 10.

He was successfully implemented Robotics Lab in SSN College of Engineering in partnership with yenta team from IITB, Mumbai. He has organized workshop on Robotics for Engineering College faculties in collaboration with eYantra – IITB, Mumbai.

His areasof interest are in FSW, LBW, GTAW, Ultrasonic Welding, Surface Engineering, Robotics, Flexible Manufacturing Systems, and Development of Composite Materials.


1. KL. Harikrishna, J.J.S. Dilip, K. RamaswamyChoudary, V.V. Subba Rao, S.R. Koteswara Rao, G.D. Janaki Ram, N. Sridhar and G. Madhusudhan Reddy, “Friction Stir Welding of Magnesium alloy ZM21”., Transaction of Indian Institute of Metals,63(5),2010, 807 – 811 (PP). DOI 10.1007/s12666-010-0123-9

2. Hari Krishna Kallipudi, Rama Koteswar Rao Sajja, VenkataSubba Rao Viswakota, “Friction Sir and Gas Tungsten Arc Welding of ZM21 Magnesium Alloy” Advanced Materials Research, 909, 2014, 77 – 82 (PP).

3. Hari Krishna KL , Koteswara Rao S R and Subba Rao V V, “Studies on microstructure and mechanical properties of GTAW, Laserand Friction stir welded ZM21 magnesium alloy” Applied Mechanics and Materials,  787,2015,  475 – 479.

4.B.Ezhil Vendhan1, K.L.Hari Krishna, A.K.Lakshminarayanan, “Numerical simulation on effect of impact velocity and target thicknessin magnesium alloy AZ31B” Applied Mechanics and Materials,  787,2015, 291 – 295.

5.Santosh. S, Javed Syed Ibrahim S, Saravanamuthukumar P, Rajkumar. K, Hari Krishna KL, “Nanographite powder assisted electric discharge machiningcharacteristics of ZM21 Magnesium alloy” Applied Mechanics and Materials, 787,2015, 406 – 410.

6.S.Shashanka, K.SriTejaa, S.VenkateshAdithyaa, KL.Hari Krishna, “Experimental analysis of vibration in a motorcycle footrest”, International Journal of mechanical engineering and computer applications”, 1, 2013,