Influence of Welding Temperature and Weathering on Inductive Welded Hybrid Joints Made of Steel and TP-FRPC

Abstract:

Aim of this study is to investigate the influence of welding temperature and weathering on bond strength of induction welded hybrid joints made of steel and thermoplastic fiber reinforced polymer composites (TP-FRPC). The used TP-FRPC are continuous glass fiber reinforced-polyamide 6 (PA6), -polypropylene (PP), -polycarbonate (PC) and-polyphenylenesulfide (PPS). The metal sheets are mild steel (1.0338 and 1.0330). The surface pretreatments of the metal sheets are either laser structuring in line pattern, perpendicular to the load direction, or two different types of functional coating adhesives (Köratac HL 400 and Köratac HL 403) currently used in coil-coating processes. First the process parameters were optimized for each material combination by investigating the bond strength at different welding temperatures. In a second step, for each material combination, specimens were welded using the determined welding temperatures with the highest bond strength in order to investigate the influence of weathering on hybrid joints. Therefore the cataplasma test (DIN EN 13523-27: 2009) as well as alternating climatic change (BMW PR 308.2) were used.

• Periodical: Key Engineering Materials (Volume 809)
• Pages: 217-224
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.809.217
• Online since: June 2019
• Authors: Stefan Weidmann*, Peter Mitschang
• Keywords: Hybrid Joining, Induction Welding, Lap Shear Strength, Weather Resistance

References

[1] P. Mitschang, R. Velthuis und M. Didi, Induction Spot Welding of Metal/CFRPC Hybrid Joints,, Advanced Engineering Materials. Vol. 15, pp.804-813, (2013).

DOI: 10.1002/adem.201200273

[2] M. Didi, S. Emrich, P. Mitschang, Kopnarski und M., Characterization of Long-Term Durability of Induction Welded Aluminum/Carbon Fiber Reinforced Polymer-Joints,, Advanced Engineering Materials, pp.821-829, 19 August (2013).

DOI: 10.1002/adem.201200288

[3] P. Mitschang und S. Weidmann, Influence of penetration depth on lap shear strength of induction welded steel/TP-FRPC joints,, ECCM18 - 18th European Conference on Composite Materials, (2018).

DOI: 10.4028/www.scientific.net/kem.809.217

[4] S. Becker und P. Mitschang, Influence of Textile Parameters on the Induction Heating Behaviour of CFRPC,, 21st. International Conference on Composite Materials, (2017).

[5] M. Hümbert, Induktiver Schweißprozess für glasfaserverstärkte Thermoplaste und Stahl, Kaiserslautern: IVW Schriftreihe, (2017).

[6] V. Rudnev, D. Loveless, R. L. Cook und B. M., Handbook of Induction Heating, Taylor & Francis, (2002).

[7] G. Benkowsky, Induktionserwärmung: Härten, Glühen, Schmelzen, Löten, Schweißen ; Grundlagen und praktische Anleitungen für Induktionserwärmungsverfahren, insbesondere auf dem Gebiet der Hochfrequenzerwärmung, Berlin: Technik, (1990).

DOI: 10.1002/maco.19750260128

[8] S. Zinn und S. L. Semiatin, Elements of induction heating: Design, control, and applications, Ohio: ASM Interantional, (2010).

[9] K. Jung, Y. Kawahito und S. Katayama, Laser Direct Joining of CFRP to Metal or Engineering Plastic,, Transactions of JWRI, pp.5-8, (2013).

[10] R. Velthuis, Induction welding of fiber reinforced thermoplastic polymer composites to metals, Kaiserslautern: IVW Schriftreihe, (2007).

[11] S. Scheik, M. Schleser und U. Reisgen, Thermisches Direktfügen von Metall und Kunststoff – Eine Alternative zur Klebtechnik?,, in Leichtbau-Technologien im Automobilbau, Wiesbaden, Springer Vieweg, 2014, pp.89-94.

DOI: 10.1007/978-3-658-04025-3_16

[12] A. Klotzbach, M. Langer, R. Pautzsch, J. Standfuß und E. Beyer, Thermal direct joining of metal to fiber reinforced thermoplastic components,, Journal of Laser Applications, Bd. 29, Nr. 2, pp.362-369, (2017).

DOI: 10.2351/1.4983243

[13] P. Amend, S. Pfindel und M. Schmidt, Thermal Joining of Thermoplastic Metal Hybrids by Means Of Mono- and Polychromatic Radiation,, Physics Procedia, Nr. 41, pp.98-105, (2013).

DOI: 10.1016/j.phpro.2013.03.056