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M. Sc. Christian Wischer

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M. Sc. Christian Wischer

Umformende und Spanende Fertigungstechnik

Wissenschaftlicher Mitarbeiter

Sonderforschungsbereich Transregio 285

Mitglied - Wissenschaftlicher Mitarbeiter - Teilprojekt C03

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2021

A contribution on versatile process chains: joining with adaptive joining elements, formed by friction spinning

C. Wischer, W. Homberg, Production Engineering (2021)

<jats:title>Abstract</jats:title><jats:p>Nowadays, manufacturing of multi-material structures requires a variety of mechanical joining techniques. Mechanical joining processes and joining elements are used to meet a wide range of requirements, especially on versatile process chains. Most of these are explicitly adapted to only one, specific application. This leads to a less flexibility process chain due to many different variants and high costs. Changes in the boundary conditions like sheet thickness, or layers, lead to a need of re-design over the process and thus to a loss of time. To overcome this drawback, an innovative approach can be the use of individually manufactured and application-adapted joining elements (JE), the so-called Friction Spun Joint Connectors (FSJC). This new approach is based on defined, friction-induced heat input during the manufacturing and joining of the FSJC. This effect increases the formability of the initial material locally and permits them to be explicitly adapted to its application area. To gain a more detailed insight into the new process design, this paper presents a detailed characterization of the new joining technique with adaptive joining elements. The effects and interactions of relevant process variables onto the course and joining result is presented and described. The joining process comprises two stages: the manufacturing of FSJC from uniform initial material and the adaptive joining process itself. The following contribution presents the results of ongoing research work and includes the process concept, process properties and the results of experimental investigations. New promising concepts are presented and further specified. These approaches utilize the current knowledge and expand it systematically to open new fields of application.</jats:p>


Joining with versatile joining elements formed by friction spinning

C. Wischer, E. Wiens, W. Homberg, Journal of Advanced Joining Processes (2021), 3, 100060

DOI


Joining with Friction Spun Joint Connectors – Manufacturing and Analysis

C. Wischer, C. Steinfelder, W. Homberg, A. Brosius, in: IOP Conference Series: Materials Science and Engineering, 2021

DOI


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