Experimental investigation of direct co-extrusion for bimetallic tubes
Konstantina D. KARANTZA, Sotirios GEORGIOPOULOS, Protesilaos K. KOSTAZOS, Dimitrios E. MANOLAKOS
Abstract. The current study aims to investigate the parallel direct extrusion of bimetallic tubes with a variable thickness ratio of the tubular layers. The bimetallic specimens consist of an aluminum tube as the inner layer and a copper one as the outer layer. Initially, quasi-static compressive tests are performed for the two utilized materials to estimate the fundamental material compressive properties. Following, the extrusion experiments are conducted and the load-displacement curves and the morphology of the final bitubes are examined. Also, the sliding of each tubular layer is evaluated by measuring their length. Finally, greater thickness in the outer pure-Cu tube reveals higher peak force and later material exit from the die, while the extrusion load depends proportionally on the total thickness. The aluminum inner tubes showed greater elongation than the outer copper ones, while reduced sliding was observed in the case of increased extrusion load due to the implementation of co-extruded bonding between the two layers.
Keywords
Direct Extrusion, Bimetallic Tubes
Published online 12/10/2024, 8 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Konstantina D. KARANTZA, Sotirios GEORGIOPOULOS, Protesilaos K. KOSTAZOS, Dimitrios E. MANOLAKOS, Experimental investigation of direct co-extrusion for bimetallic tubes, Materials Research Proceedings, Vol. 46, pp 219-226, 2024
DOI: https://doi.org/10.21741/9781644903377-29
The article was published as article 29 of the book Innovative Manufacturing Engineering and Energy
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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