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  1. No Access

    Article

    Comparative Analysis of Microstructure Evolution and Mechanical Properties of Dissimilar Welded Joints of AA7075/AA6061 via Friction Stir Welding, Tungsten Inert Gas Welding, and Tungsten Inert Gas + Friction Stir Processing

    This study aimed to investigate the detailed microstructure and mechanical characteristics of welded butt joints in dissimilar AA7075/AA6061. Three different welding methods were employed for the comparison: T...

    Rajeev Rana, D. B. Karunakar, Anish Karmakar… in Journal of Materials Engineering and Perfo… (2024)

  2. No Access

    Article

    Effect of Tool Travel Rate on Microstructure Evolution and Mechanical Properties of Dissimilar Friction Stir Welded Joints of AA7075 and AA6061 Aluminium Alloys

    The current research aims to investigate how processing parameters influence the mechanical properties and microstructure development of dissimilar AA7075/AA6061. These alloys were friction stir welded (FSWed)...

    Rajeev Rana, Anish Karmakar, D. B. Karunakar in Journal of Materials Engineering and Perfo… (2023)

  3. No Access

    Article

    Influence of MgO addition on mechanical and ablation characteristics of ZrB2–SiC composites developed through microwave sintering

    Zirconium diboride (ZrB2) is a credible candidate for hypersonic aerospace applications owing to magnificent characteristics such as higher melting point temperature, higher hardness, higher thermal conductivity,...

    Ankur Sharma, D. B. Karunakar in Journal of Materials Science (2021)

  4. No Access

    Chapter and Conference Paper

    Influence of Different Tool Profiles and Process Parameters on Mechanical Properties of Dissimilar AA6061 and AA7075 Aluminium Alloys by Friction Stir Welding

    The objective of the current study is to determine the effect of tool probe geometries on mechanical properties of AA6061 and AA7075 Al alloys welded using friction stir welding (FSW). The thickness of plates ...

    Rajeev Rana, D. B. Karunakar, Anish Karmakar in Advances in Engineering Design (2021)

  5. No Access

    Chapter and Conference Paper

    Development and Characterizations of ZrB2–SiC Composites Sintered Through Microwave Sintering

    Zirconium diboride (ZrB2) has superior properties like high electrical and thermal conductivity, high melting point, high hardness, high elastic modulus, high corrosion, and thermal shock resistance, making ZrB2 ...

    Ankur Sharma, D. B. Karunakar in Advances in Manufacturing and Industrial Engineering (2021)

  6. No Access

    Chapter and Conference Paper

    Mechanical Properties of AA2014 Matrix Composites Reinforced with TiO2 Particles Through Multi-step Stir Casting

    Advance engineering applications demand new generation materials that are stronger, lighter and cheaper that can withstand extreme service loads for higher performance components in aerospace, aircraft and aut...

    J. S. Khalkho, CH. S. Vidyasagar, D. B. Karunakar in Advances in Systems Engineering (2021)

  7. No Access

    Article

    Utility-Fuzzy-Taguchi based hybrid approach in investment casting process

    In this paper, the use of the Utility-Fuzzy-Taguchi based hybrid approach in investment casting process for optimizing multiple quality characteristics of wax patterns has been conceptualized. Selection of an ...

    Sarojrani Pattnaik, D. B. Karunakar… in International Journal on Interactive Desig… (2014)

  8. No Access

    Article

    Multi-characteristic optimization of wax patterns in the investment casting process using grey–fuzzy logic

    The present investigation focuses on optimizing the injection process parameters with multiple performance characteristics in the investment casting process using the orthogonal array with grey–fuzzy logics. A...

    Sarojrani Pattnaik, D. B. Karunakar… in The International Journal of Advanced Manu… (2013)