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10 Result(s)

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  1. No Access

    Chapter and Conference Paper

    Friction Stir Welding of Thick Aluminium Welds—Challenges and Perspectives

    The present paper describes the main challenges faced by the heavy metal industries in the adoption of the friction stir welding of thick section. The requirement of higher forge axis load necessitates the use...

    Murshid Imam, Yufeng Sun, Hidetoshi Fujii… in Friction Stir Welding and Processing IX (2017)

  2. No Access

    Article

    Microstructural Characteristics and Mechanical Properties of Friction Stir Welded Thick 5083 Aluminum Alloy

    Joining thick sections of aluminum alloys by friction stir welding (FSW) in a single pass needs to overcome many challenges before it comes to full-scale industrial use. Important parameters controlling the st...

    Murshid Imam, Yufeng Sun, Hidetoshi Fujii… in Metallurgical and Materials Transactions A (2017)

  3. No Access

    Article

    Finite element analysis of deformation in early stage of multi-pass circumferential dissimilar welding of thick-walled pipes with narrow gap

    Three-dimensional thermal elastic-plastic finite element analyses were conducted in order to reveal the mechanism of gap shrinkage in early stage of multi-pass narrow gap welding of thick-walled dissimilar pip...

    Hisashi Serizawa, Yusuke Okuda, Hidekazu Murakawa in Welding in the World (2016)

  4. No Access

    Article

    Iterative substructure method employing concept of inherent strain for large-scale welding problems

    When structures such as ships, automobiles, and bridges are assembled by welding, distortion and residual stress are produced as unavoidable consequence of local shrinkage due to welding. The dimensional error...

    Hidekazu Murakawa, Ninshu Ma, Hui Huang in Welding in the World (2015)

  5. No Access

    Article

    FE Analysis of Buckling Behavior Caused by Welding in Thin Plates of High Tensile Strength Steel

    The target of this study was to investigate buckling behavior during the entire welding process which consists of the heating and the cooling processes. For thin plate structures made of high tensile strength...

    Jiangchao Wang, Sherif Rashed… in Journal of Materials Engineering and Perfo… (2014)

  6. No Access

    Article

    Martensite transformation of a Cr-Ni type weld metal and its application to analysis of welded joints

    We have investigated the martensite transformation phenomena of a Cr-Ni type weld metal, especially the effects of stress and plastic strain that exist before the martensite transformation start. Tensile speci...

    Tadashi Kasuya, Ryouhei Hamamura, Hidekazu Murakawa… in Welding in the World (2014)

  7. No Access

    Chapter

    Compressive Residual Stress in Welded Joints with Low-Temperature-Transformation Weld Metal in High-Strength Steel

    The use of low-temperature-transformation (LTT) weld metal is considerably effective in reducing residual stress in welded joints of high-strength steels. The reduction in residual stress is due to the dilatat...

    Chiaki Shiga, Hidekazu Murakawa, Yuki Matuo… in In-situ Studies with Photons, Neutrons and… (2014)

  8. No Access

    Article

    A practical method for prediction of distortion produced on large thin plate structures during welding assembly

    Fusion welding processes are widely used to assemble large thin plate structures such as ships, automobiles, and passenger trains because of their high productivity. However, welding-induced distortion often i...

    Hidekazu Murakawa, Yasuhisa Okumoto, Sherif Rashed, Masanori Sano in Welding in the World (2013)

  9. No Access

    Article

    Numerical analysis of deformation in multi-pass circumferential TIG welding with narrow gap

    As one of the practical issues for narrow gap tungsten inert gas welding, the mechanism of gap width shrinkage in multi-pass circumferential butt welding of thick-walled pipes was examined experimentally and n...

    Hisashi Serizawa, Shinichiro Nakamura, Kyosuke Kanbe… in Welding in the World (2013)

  10. No Access

    Article

    Prediction of the residual welding stress in 2.25Cr-1Mo steel by taking into account the effect of the solid-state phase transformations

    A computational approach based on the thermal elastic plastic finite element method was developed for predicting welding residual stress in low carbon alloyed steel welds by taking into account the effect of t...

    Dean Deng, Yangang Tong, Ninshu Ma… in Acta Metallurgica Sinica (English Letters) (2013)