Division Of Structural Materials Technology And Welding - Administrative Units - Bridge of Knowledge

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  • Advancements in the Additive Manufacturing of Magnesium and Aluminum Alloys through Laser-Based Approach
    Publication
    • S. K. Sharma
    • H. S. Grewal
    • K. K. Saxena
    • K. A. Mohammed
    • C. Prakash
    • J. P. Davim
    • D. Buddhi
    • R. Raju
    • D. G. Mohan
    • J. Tomków

    - Materials - Year 2022

    Complex structures can now be manufactured easily utilizing AM technologies to meet the pre-requisite objectives such as reduced part numbers, greater functionality, and lightweight, among others. Polymers, metals, and ceramics are the few materials that can be used in AM technology, but metallic materials (Magnesium and Aluminum) are attracting more attention from the research and industrial point of view. Understanding the role...

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  • APPLICATION POSSIBILITIES OF THE S960 STEEL IN UNDERWATER WELDED STRUCTURES

    In this paper, the application possibilities of the ultra-high strength (UHSS). Domex 960 steel in the underwater welded structures are analyzed. In the research, the investigated material has been tested in bead-on-plate wet welding conditions with the usage of different heat input values, namely 0.63 kJ/mm, 0.72 kJ/mm and 0.93 kJ/mm. Specimens were performed by the manual metal arc (MMA) welding method with the usage of rutile...

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  • BADANIA JAKOŚCI BEZSZWOWYCH DRUTÓW PROSZKOWYCH
    Publication

    - Year 2022

    Proces spawania drutami proszkowymi (FCAW) zyskuje coraz większą popularność w różnych dziedzinach przemysłu. Przemysł stoczniowy oraz offshore znacznie częściej wykorzystuje tę metodę przy wykonywaniu odpowiedzialnych i masywnych konstrukcji, których nie można wykonać stosując metody w pełni zautomatyzowane, np. spawanie łukiem krytym. Wzrost zainteresowania tą metodą spowodowany jest przez wysoką wydajność procesu spawania, łatwość...

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  • Badania nieniszczące czopów łopatek turbiny Hz3 EW Straszyn na obecność pęknięć nieciągłości
    Publication

    Celem badań była identyfikacja wad materiałowych na czopach łopatek Hz3 w turbinie Kaplana , na podstawie następujących badań: - wizualnych (VT), - magnetyczno proszkowych (MT), ultradźwiękowych. Na podstawie w/w badań poszczególnych stref pomiarowych, dokonano oceny wadliwości materiału 4 czopów łopatek, łączących łopatki z wieńcem Hz3, z punktu widzenia inicjacji pęknięć. Wynik badań przekazano Zleceniodawcy.

  • Deformable model of a butterfly in motion on the example of Attacus atlas
    Publication

    - Journal of the Mechanical Behavior of Biomedical Materials - Year 2022

    Insect wings can undergo significant chordwise (camber) as well as spanwise (twist) deformation during flapping flight but the effect of these deformations is not well understood. The shape and size of butterfly wings leads to particularly large wing deformations, making them an ideal test case for investigation of these effects. High-speed videogrammetry was used to capture the wing kinematics and deformations. The movements of...

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  • Effect of Tool Positioning Factors on the Strength of Dissimilar Friction Stir Welded Joints of AA7075-T6 and AA6061-T6
    Publication
    • A. Ghiasvand
    • S. M. Noori
    • W. Suksatan
    • J. Tomków
    • S. Memon
    • H. A. Derazkola

    - Materials - Year 2022

    Friction Stir Welding (FSW) is a solid-state bonding technique. There are many direct and indirect factors affecting the mechanical and microstructural properties of the FSW joints. Tool offset, tilt angle, and plunge depth are determinative tool positioning in the FSW process. Investigating the effect of these factors simultaneously with other parameters such as process speeds (rotational speed and translational speed) and tool...

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  • Effects of Noncontact Shoulder Tool Velocities on Friction Stir Joining of Polyamide 6 (PA6)
    Publication

    - Materials - Year 2022

    In this study, the effects of the traverse and rotational velocities of the noncontact shoulder tool on the heat generation and heated flux during the friction stir joining of high-density polyamide 6 (PA6) polymer were investigated. The computational fluid dynamics (CFD) method was employed to simulate the thermomechanical phenomena during the friction stir joining (FSJ) process of PA6. A developed model was used to consider the...

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  • Influence of PWHT Parameters on the Mechanical Properties and Microstructural Behavior of Multi-Pass GTAW Joints of P92 Steel
    Publication

    - Materials - Year 2022

    The 9% Cr steels were developed for ultra-supercritical (USC) power plants to meet the requirements of high operating temperature and pressure. These steels are produced to operate at high temperatures where impact toughness is not a concern; however, it becomes important for the welded joints to have good impact toughness at room temperature for manufacturing. The present work investigates the effect of the post-weld heat treatment...

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