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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
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<title>Document</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body>
<div class="content w-full h-full block">
<div class="container flex justify-center items-center w-fit text-center mx-auto my-auto bg-blue-100">
<div class="matter m-5 p-5">
<div class="heading text-4xl mt-2 font-serif text-center">
<h2>Publications-2014</h2>
</div>
<div class="sub text-2xl mt-2 font-serif text-left ">Journal </div>
<ul class="flex flex-col text-left bg-blue-50 rounded-2 text-black">
<li class="mt-5 p-5">
<p class="text-1xl font-semibold"> Metal Additive Manufacturing Using Friction Stir Engineering
</p>
<p> Authors - Sandeep Rathee, Manu Srivastava, Pulak Mohan Pandey, Abhishek Mahawar, Siddhant Shukla
</p>
<p> Publisher - Elsevier</p>
<p> Description - Solid state metal additive manufacturing (SS-MAM) techniques based on friction
stir engineering (FSE) have gained significant attention since the last decade and act as a
bridge for many existing MAM shortfalls. In this article, SS-MAM techniques based upon FSE
especially additive friction stir (AFS) and friction stir additive manufacturing (FSAM) are
discussed. There is meagre research with respect to tooling associated with these processes
since they involve expertise in two fields i.e., AM and FSE. The current article bridges this
gap with a detailed discussion on all relevant fundamentals of AFS and FSAM. The recent
developments with respect to tooling design and parameters are discussed in-depth. Also, this
article discusses metallurgy, microstructural aspects and mechanical properties of deposited
layers via these techniques. A detailed timeline summarizing the development with respect to
these techniques.</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold">Fabrication of AI 5059/SIC Composite</p>
<p> Authors - Manu Srivastava, Sandeep Rathee</p>
<p> Publisher - Elsevier
</p>
<p> Description - Friction stir additive manufacturing (FSAM) is a novel friction based additive
manufacturing technology that can be effectively utilized to fabricate fully dense components in
solid state with improved structural performance. In this work, Al5059/SiC composite component
of approximately 20 mm height was developed using FSAM technique. Microstructural and
microhardness characterization of fabricated component was done to evaluate the microstructural
changes and, bonding between subsequent layers of fabricated build. Results reflected that
fabricated build exhibits smaller grain size and higher micro-hardness as compared to base
metal. A maximum enhancement of ∼62% in micro-hardness of the build was achieved as compared to
base metal.</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold">Incorporation of SiC particles during friction stir welding of
Al 5059 alloy</p>
<p> Authors - Manu Srivastava, Sandeep Rathee</p>
<p> Publisher - Springer Netherlands</p>
<p> Description - Friction stir welding (FSW) was performed in the current research on Al 5059
alloy. Nano-sized SiC (n-SiC) particles were incorporated during FSW for improving mechanical
characteristics of welds. Effect of tool rotating speed and multiple FSW passes was studied on
SiC dispersion, micro structural changes and mechanical characteristics of composite joints.
Results reflected that rotational speed and multiple FSW passes have significant impact over the
distribution of SiC reinforcement. Further, the pattern of SiC distribution in the base metal
strongly affects the micro structural evolution and mechanical characteristics of welds. An
increase of ~55% in microhardness values was achieved in the stir zone of composite joint.
Correspondingly, higher ultimate tensile strength (342 MPa) value was obtained as compared to
base metal (321 MPa). The increase in mechanical characteristics is mainly owing to grain
</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold">Influence of activated flux on micro-structural</p>
<p>
Authors - Anand Baghel, Chaitanaya Sharma, Sandeep Rathee, Manu Srivastava</p>
<p> Publisher - Elsevier
</p>
<p>Description - The strength of weld joint largely depends on depth of penetration of metal at
fusion zone. The present study aims to investigate effect of five activated fluxes, viz. Al2
(SO4)3, NaOH, Na2CO3, NaHCO3, and borax in MIG welding on depth of penetration and mechanical
properties of AISI 1018. Results reflected that use of flux had paramount influence on the
microstructure and hardness of the bead on plate welds. It helps in increasing depth of
penetration via reverse Marangoni effect. Out of all five fluxes, Borax flux had provided higher
depth of penetration, external and internal aspect ratio and hardness than other fluxes used as
well as than without flux.
</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold"> Parametric Optimization of Friction Stir Welding</p>
<p> Authors - Nasir Khan, Sandeep Rathee, Manu Srivastava</p>
<p> Journal - Yugoslav Journal of Operations Research</p>
<p> Description - Al-Mg-Si alloys have wide applications in industries such as aerospace, marine,
automobile, construction, and so on. In this work, newly developed friction stip</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold">Activated flux TIG welding
</p>
<p> Authors - Anand Baghel, Chaitanaya Sharma, Sandeep Rathee, Manu Srivastava</p>
<p> Publisher - Elsevier
</p>
<p> Description - Low depth of penetration limits the use of favored tungsten inert gas (TIG)
welding process for joining of ferrous and non-ferrous metals, demanding weld bead profile of
high quality. This article aims to study the effect of chloride and oxide fluxes viz. calcium
chloride (CaCl2) and ferric oxide (Fe2O3) on micro-structural and mechanical properties of TIG
welded joints of dissimilar SS304 and SS202 steels. Results reflected that use of oxide and
chloride fluxes significantly affects the weld bead geometry, bead dimensions and penetration.
The use of oxide flux resulted in complete penetration and approximately linear root of weld
with good fusion of both the base metals. Fusion zone showed columnar dendritic cast grain
structure while coarse grain structure was obtained in heat-affected zone. Fusion zone hardness
was higher than SS304 base metal and an opposite trend observed for SS202 irrespective of
welding.</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold"> Functionally Graded Materials</p>
<p> Authors - Ashish Yadav, Pushkal Badoniya, Manu Srivastava, Prashant K Jain, Sandeep Rathee</p>
<p> Publisher - CRC Press</p>
<p> Description - Functionally graded materials (FGMs) or tailor-made materials offer a vast
research domain and have various intriguing applications. Immense developments have been
witnessed in the field of FGMs over the past few decades. These include advancements in
processing techniques as well as applications. Various processing techniques have been discussed
in this book and their applications have also been discussed in detail in respective chapters.
This chapter presents a summary of different applications, challenges, and future trends. The
objective of this chapter is to help the readers in drawing meaningful conclusions on the
different aspects of FGM and not to provide a detailed description in order to avoid any
replication of concepts already covered in the previous chapters of this book.</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold">Effect of tool rotational speed on weld quality
</p>
<p> Authors - Nasir Khan, Sandeep Rathee, Manu Srivastava, Chaitanaya Sharma</p>
<p> Publisher - Elsevier</p>
<p> Description - Friction stir welding (FSW) is one of the best suitable solid state welding
techniques for joining of light weight metallic materials such as aluminium, magnesium, etc.
Several process parameters such as rotational speed, travel speed, tilt angle of tool, etc.
affect the performance of FSW. In this research work, an attempt was made to analyze the effect
of rotation speed of tool (TRS) on the weld quality of friction stir welded joints of AA6061
alloy. RST was varied in the range of 700 to 1120 rpm keeping other parameters as constant
throughout the experimentation. Results reflected that RST significantly affects the weld
quality, microstructural evolution and mechanical properties of welds.</p>
</li>
<li class="mt-5 p-5">
<p class="text-1xl font-semibold"> Layout Optimization for FDM Process</p>
<p>
Authors - Sandeep Rathee, Manu Srivastava</p>
<p> Publisher - Springer, Cham
</p>
<p>Description - This chapter presents an overview of various aspects for quantitatively optimizing
the fused deposition modelling (FDM) layout process. After initial introductory sections, a case
study for utilizing hybrid optimization strategy by combining response surface methodology (RSM)
with grey relational analysis (GRA) for optimizing multiple responses to acheive improved cost
effectiveness for FDM process is presented. Spatial orientation (SO), air gap (AG), raster angle
(RA) and contour width (CW) are taken as process variables. Also, build time (BT), model
material volume (MV) and support material volume (SV) are considered as response in present
work. Thirty experiments were performed for acrylo butadiene styrene (ABS) P400 on FDM machine
for conical-shaped constructive solid geometry (CSG) primitives. Aim of the current case study
is establishing a scientific reference for optimizing BT, MV and SV</p>
</li>
</ul>
</div>
</div>
</div>
</body>
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