Joining by upset bulging – tooling design and new concepts for online process control using servo presses and local heating

• Autorzy: Sviridov A. , Grützner P. , Rusch M. , Bambach M.
• Języki publikacji: EN

Abstrakty

EN

Conventional fusion-welding techniques pose limitations in modern multi-material assemblies due to the heat input. The negative influence of the heat-affected zone on the material properties must be avoided particularly in high-strength steels. During mechanical joining processes, which may also be used for joining of different materials e.g. steel and aluminium, high-performance joints can be produced without degradation of the material properties. Joining by upset bulging is an innovative joining method based on plastic buckling of tubes under axial compression. In previous investigations of joining by upset bulging the process parameters were determined and joints of tubes with sheet metal were tested under static and dynamic loads. The results of these studies have shown that the process of upset bulging has a large potential for the production of joints of tubes with sheets and plates. The present paper focuses on the tooling concepts for an efficient use of the technology and describes methods to control the forming and joining process. Two aspects are covered: (i) the application of servo-presses for joining by upset bulging and their possibilities for on-line process control, (ii) a moderate, process-integrated local heating of the forming area to avoid the formation of cracks and to further increase the strength of the joints.

Słowa kluczowe

EN

tube forming; mechanical joining; upset bulging; local heating; servo press

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2017
• Tom: Vol. 17, No. 1
• Strony: 78--87
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Sviridov A.

• Brandenburg University of Technology Cottbus-Senftenberg, Chair of Mechanical Design and Manufacturing, Germany

autor

Grützner P.

• HTW Berlin, University of Applied Sciences, Berlin, Germany

autor

Rusch M.

• Brandenburg University of Technology Cottbus-Senftenberg, Chair of Mechanical Design and Manufacturing, Germany

autor

Bambach M.

• Brandenburg University of Technology Cottbus-Senftenberg, Chair of Mechanical Design and Manufacturing, Germany

Bibliografia

• [1] LANGE K., 1993, Umformtechnik Handbuch für Industrie und Wissenschaft Band 4: Sonderverfahren, Prozeßsimulation, Werkzeugtechnik, Produktion, Springer-Verlag, Berlin Heidelberg.
• [2] SPUR G., STÖFERLE TH., 1986, Handbuch der Fertigungstechnik Band 5 Fügen Handhaben Montieren, Carl Hanser Verlag, München Wien.
• [3] VIEHWEGER B., SVIRIDOV A., GRÜTZNER P., BEHRENS B.A., BOUGUECHA A., ALMOHALLAMI A., 2015, Ermittlung von Verfahrensgrenzen für das Fügen durch Knickbauchen anhand des Werkstoffes E235+N, Materialwissenschaft und Werkstofftechnik, 46/8, 804-812.
• [4] GRÜTZNER P., 2014, Prozessentwicklung für das Fügen durch Knickbauchen, Dissertation, BTU Cottbus-Senftenberg.
• [5] ALVES L.M., DIAS E.J., MARTINS P.A.F., 2011, Joining sheet panels to thin-walled tubular profiles by tube end forming, Journal of Cleaner Production, 19, 712-719.
• [6] ALVES L.M., MARTINS P.A.F., 2013, Single-stroke mechanical joining of sheet panels to tubular profiles, Journal of Manufacturing Processes, 15, 151-157.
• [7] ALVES L.M., SILVA C.M.A., MARTINS P.A.F., 2014, End-to-end joining of tubes by plastic instability, Journal of Materials Processing Technology, 214, 1954-1961.
• [8] ALVES L.M., MARTINS P.A.F., 2012, Tube branching by asymmetric compression beading, Journal of Materials Processing Technology, 212, 1200-1208.
• [9] VIEHWEGER B., SVIRIDOV A., GRÜTZNER P., BEHRENS B.-A., KAMMLER M., ALMOHALLAMI A., 2014, Fügen durch Knickbauchen, EFB-Forschungsbericht 395, Europäische Forschungsgesellschaft für Blechverarbeitung e.V., Hannover.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).