Amit Kumar Singh

Amit Kumar Singh
Indian Institute of Technology Bombay | IIT Bombay · Department of Mechanical Engineering

Doctor of Philosophy
Working on microstructural and mechanical characterization of additively manufactured metallic materials.

About

14
Publications
2,525
Reads
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102
Citations
Introduction
Amit Kumar Singh is working on understanding the physical phenomena and the underlying science of the additive manufacturing process. The transient three-dimension heat transfer and material flow numerical model is developed to compute the metallurgical variables such as temperature field, fusion zone, and cooling rate inside the molten pool.
Additional affiliations
March 2019 - November 2021
Indian Institute of Technology Gandhinagar
Position
  • Research Associate
Description
  • Working as an SRF on the Heat Transfer and materials flow modeling of dissimilar materials in the additive manufacturing process. The project has been approved bt the Science and Engineering Research Board (SERB) (project number CRG/2018/004944).
July 2014 - June 2016
Indian Institute of Technology Gandhinagar
Position
  • Master's Student
Education
October 2009 - May 2013
Rajiv Gandhi Proudyogiki Vishwavidyalaya
Field of study
  • Mechanical Engineering

Publications

Publications (14)
Article
Full-text available
A heat transfer numerical model is developed for friction stir welding of dissimilar materials Al 6061 and AZ31 alloy. Thermo-physical properties were experimentally determined for the stir zone and compared with the base alloys. Experimentally determined thermo-physical properties of the stir zone are not strictly the average values of the base al...
Article
Additive manufacturing of titanium alloy Ti-6Al-4 V has significantly increased over the past few years, primarily due to its broad application over the conventional manufacturing process for complex and near net shape production. However, difficulties arise while printing complex and huge structures and therefore, the components need a suitable jo...
Article
Full-text available
High thermal and electrical conductivities, corrosion resistance and relatively good strength lead to use of copper and its alloys for several engineering applications. Copper alloys also find application in the nuclear industry for manufacturing storage canisters for spent nuclear fuel. Conventional fusion welding of copper and its alloys is diffi...
Article
Full-text available
Recent advances in the field of additive manufacturing offers significant flexibility in shaping and processing of materials. These techniques have been extensively studied for the manufacturing of entire component, typically using powder of a single composition. In this study, we explore the use of selective laser melting technique for the process...
Article
Joining different parts is one of crucial component of designing/engineering of materials. To current energy efficient low weight automotive and aerospace components are consisting of different class of materials such as metal, polymer and ceramics etc. Joining these component remains a challenge. Here, we demonstrate joining of metal (alumunium) a...
Article
The temperature distribution, geometry and size of the melt pool, and solidification parameters were computed using the heat transfer and material flow model for the directed energy deposition process. The thermal cycle and melt pool size were computed for different process parameters such as laser power, deposition speed, and laser beam radius acr...
Article
Self-cleaning superhydrophobic cement based surfaces are predominantly fabricated by functionalization of either superhydrophilic micro/nano powders or their structural components with toxic chemicals (alkylsilanes, perfluoropolyethers). In this article, a non-toxic, scalable and cost-effective fabrication colloidal lithography approach is reported...
Article
Electron Beam Melting (EBM) is an emerging additive manufacturing technique for the fabrication of titanium alloy Ti-6Al-4V for orthopedic applications. Here, a hybrid manufacturing technique viz. EBM with Friction Stir Processing (FSP) has been proposed to enhance implant surface properties. The surface modification using FSP reduces the roughness...
Article
There have been claims of early use of high-carbon steel in South India. Still, the antiquity, elemental composition and steelmaking process have not been explored adequately. The high carbon steel was known in the Iron Age or early historical period. However, the large-scale use of such steel was prevalent only in the medieval times. This article...
Article
A three-dimensional heat transfer and material flow-based model using experimentally measured thermophysical properties has been developed for friction stir welding (FSW) of Cu-0.8Cr-0.1Zr alloy. CuCrZr alloy is a precipitation-hardened copper alloy with good electrical and thermal conductivity and moderate strength at elevated temperatures. The te...
Article
The microstructure and corrosion behavior of as-cast and friction stir processed in-situ Al−TiB2 based composite in 3.5 wt.% sodium chloride solution were investigated. The microstructure was characterized using X-ray diffractometry, scanning electron microscopy and electron backscattered diffraction technique while corrosion behavior was evaluated...
Poster
Heat transfer and materials flow numerical modeling is developed for joining of dissimilar materials on Friction Stir Welding (FSW). The model has been validated for three different FSW tool shoulder to join Al 6061 T6 and AZ31 alloy.

Questions

Questions (3)
Question
Mixing of two different base metals 6061-T6 and AZ31 in same quantity by some thermo-mechanical processing.
Question
Generally at high temperature aluminum and magnesium mixed together and form intermetallic compound Al3Mg2 and Al12Mg17 which increase the hardness.
Question
I want to use AZ31 Magnesium plates for my research work in Friction Stir Welding to join with aluminum.

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