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  1. Heffel, Eduard [Author] ; Hagedorn, Peter [Degree supervisor]; Schweizer, Bernhard [Degree supervisor]

    Ultrasonic Generators for Energy Harvesting Applications: Self-Excitation and Mechanical Frequency Transformation

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    Darmstadt: Universitäts- und Landesbibliothek Darmstadt, 2013

    Published in: Forschungsberichte des Instituts für Mechanik der Technischen Universität Darmstadt ; 32

  2. Ohrdes, H. [Author]; Nothdurft, S. [Author]; Nowroth, C. [Author]; Grajczak, J. [Author]; Twiefel, J. [Author]; Hermsdorf, J. [Author]; Kaierle, S. [Author]; Wallaschek, J. [Author]

    Influence of the ultrasonic vibration amplitude on the melt pool dynamics and the weld shape of laser beam welded EN AW-6082 utilizing a new excitation system for laser beam welding - [published Version]

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    Berlin : Springer, 2021

    Published in: Production Engineering 15 (2021), Nr. 2 ; Production Engineering

  3. Grajczak, J. [Author]; Nowroth, C. [Author]; Long, Y. [Author]; Twiefel, J. [Author]; Wallaschek, J. [Author]; Nothdurft, S. [Author]; Hermsdorf, J. [Author]; Kaierle, S. [Author]

    Investigations on the effect of post treatment utilizing ultrasonic standing waves on the hardness of laser beam welds in stainless steel - [published Version]

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    Amsterdam [u.a.] : Elsevier, 2022

    Published in: Procedia CIRP 111 (2022) ; Procedia CIRP

  4. Wang, Liang [Author]; Bai, Fushi [Author]; Hofmann, Viktor [Author]; Jin, Jiamei [Author]; Twiefel, Jens [Author]

    Novel Traveling Wave Sandwich Piezoelectric Transducer with Single Phase Drive: Theoretical Modeling, Experimental Validation, and Application Investigation - [published Version]

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    Heidelberg [u.a.] : Springer, 2021

    Published in: Chinese Journal of Mechanical Engineering 34 (2021), Nr. 1 ; Chinese Journal of Mechanical Engineering

  6. Ohrdes, H. [Author]; Nothdurft, S. [Author]; Nowroth, C. [Author]; Grajczak, J. [Author]; Twiefel, J. [Author]; Hermsdorf, J. [Author]; Kaierle, S. [Author]; Wallaschek, J. [Author]

    Influence of the ultrasonic vibration amplitude on the melt pool dynamics and the weld shape of laser beam welded EN AW-6082 utilizing a new excitation system for laser beam welding

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    Hannover: Gottfried Wilhelm Leibniz Universität Hannover, 2021 ; Hannover: Technische Informationsbibliothek (TIB), 2021

    Published in: Production Engineering ; 15 (2021), Nr. 2, S. 151-160