Dr ARKANTI KRISHNAIAH
@osmania.ac.in
Senior Professor, Dept of Mechanical Engineering, University College of Engineering
Osmania University, Hyderabad
RESEARCH INTERESTS
Advanced Manufacturing
Processing of bulk nanomaterials
Metal Forming
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
C. Sravanthi, S. Gajanana, A. Krishnaiah, and Ch. Venkateswarlu
Informa UK Limited
Syed Adil, A. Krishnaiah, and D. Srinivas Rao
AIP Publishing
M. Venkat Reddy, Prasanta Kumar Sahoo, A. Krishnaiah, P. Ghosal, and T.K. Nandy
Elsevier BV
JagadeeswaraRao Maddu, Buschaiah Karrolla, Riyaaz Uddien Shaik, Hassan Elahi, and Krishnaiah Arkanti
MDPI AG
One of the widely used non-traditional machines for machining of hard materials into complex shapes and different sizes is the electrical discharge machine (EDM). Recently, the EDM has been used for deposition by controlling the input parameters (current and duty cycle). This work was carried out to evaluate the readily available bronze (88% Cu + 12% Sn) electrode for deposition of copper material on titanium alloy. Experiments were conducted according to Taguchi experimental design considering the input parameters of current, Ton, Toff and preheating temperature of substrates. Titanium alloy was further hardened by preheating at temperatures of 100 °C, 300 °C and 500 °C and quenching in brine, castor oil and vegetable oil in order to avoid workpiece erosion. After this treatment, hardness, grain area, grain diameter and number of grains were characterized to compare with pretreated substrates. Then, the treated substrates were taken for copper deposition with the EDM. Output parameters such as material deposition rate (MDR), electrode wear rate (EWR), coating thickness (CT), elemental composition and surface crack density (SCD) were found. Material characterization was carried out using a scanning electron microscope (SEM) with energy dispersive X-ray spectroscopy (EDX) and optical microscopy. Output parameters were optimized with technique for order of preference by similarity to ideal solution (TOPSIS) to find optimum parameters. A sixth experiment with parameter values of Ton of 440 µs, Toff of 200 µs, preheating temperature of 300 °C and quenching medium of castor oil was optimum with MDR of 0.00506 g/m, EWR of 0.00462 g/m, CT of 40.2 µm and SCD 19.4 × 107 µm2.
Y. Gajalappa, A. Krishnaiah, K. Basanth Kumar, Eswaranna, Kuldeep K. Saxena, and Parveen Goyal
Elsevier BV
V. Sumalatha, P. Ravinder Reddy, A. Krishnaiah, and G. S. Reddy
Springer Singapore
B. Suresh Kumar Reddy, A. Krishnaiah, and S. Gajanana
Springer International Publishing
L MILGRAM
Elsevier
L MILGRAM
Elsevier
L MILGRAM
Elsevier
M. Nagarjuna, S. Gajanana, and A. Krishnaiah
Springer International Publishing
Ramulu Malothu and Krishnaiah Arkanti
Springer Singapore
G. Mrudula, P. Bhargavi, and A. Krishnaiah
Elsevier BV
Zeradam Yeshiwas and Arkanti Krishnaiah
Springer International Publishing
K.C. Sabitha, P. Ravinder Reddy, A. Krishnaiah, and R. Uday Kumar
IOP Publishing
A tailor welded blank consist of two or more sheet metals which are welded together prior to forming. The sheets which are welded together may be different in size, shape and even in thickness also. The blanks may be also differing in sense of coating and material grade also. This different blanks are welded together to form in to one continuous blank. In industries since last long years the materials which are used for preparing tailor welded blanks in general are combinations of mild steel to stainless steel with different grades. Also the common materials which are used for making tailor welded blanks are generally aluminium alloys with different grades or it may be combination of aluminium and steel alloy sheets. Most tailor welded blanks today embody a multiple thickness design in order to eliminate the use of extra reinforcing components. The advantages of using tailor welded blanks are numerous, they ensure that the components are light, stronger, and provide required functionality at lower cost than parts made from monolithic pressed sheets, as well as improving structural integrity, safety and corrosion resistance in specific areas. In an automotive application, Tailor welded blanks eliminate the need for reinforcement, resulting in an overall reduction in vehicle body weight. The use of different strength or thickness in a single part can simplify the whole structure of a vehicle. Low car weight means improved fuel economy that is very important to today’s energy consumption. Decrease of automobile parts number. This paper presents the tailor welded blanks of steel alloys tensile specimens are prepared and tested through uniaxial tensile test. Determined mechanical properties of tailor welded sheet metal blanks and also studies done on those properties.
Dasari Govardhan et al., Dasari Govardhan et al., and
Transstellar Journal Publications and Research Consultancy Private Limited
REASONABLY HIGH QUALITY DESIGN DASARI. GOVARDHAN , A. KRISHNAIAH 2 & AVSSKS GUPTA Research Scholar, Department of Mechanical Engineer g. University College of Engineering, OSMANIA University, Hyderabad, India Professor and Vice-Principal, University College of Engineering, OSMANIA University, Hyderabad, India Professor, JNTUH College of Engineering Hyderabad, Kuk atpally, Hyderabad, India ABSTRACT
Dasari. Govardhan et al., Dasari. Govardhan et al., and
Transstellar Journal Publications and Research Consultancy Private Limited
Pavan Kumar Thimmaraju, Krishnaiah Arkanti, and G. Chandra Mohan Reddy
Elsevier BV
M. Ravi Kumar, A. Krishnaiah, and Ravi Shankar Kalva
Elsevier BV
G. Madhusudhan Reddy, M.S.R. Prasad, A. Krishnaiah, and P. Ramesh Babu
Elsevier BV
K. Buschaiah, M. JagadeeswaraRao, and A. Krishnaiah
Elsevier BV
D. Srinivas Rao, A. Krishnaiah, Y. Krishna, and Syed Adil
IEEE
Series of machining experiments are conducted on Aluminium-Steel alloy work material using Carbide 45° tool-inserts with an objective to offer a machining solution in the form of optimized cutting parameters that facilitates substantial improvement in tool-life, productivity and machining economy. As the newer alloy overcomes the acute machining obstructions, it qualifies for superior machining and emerges as a futuristic metal in wide spread deserving applications.