The combined PU spray and wet pressing process allows the manufacture of parts with high lightweight potential. The process can be used for the production of sandwich parts with compact continuous fiber reinforced PU outer layers and a process integrated formation of the foam core. Compared with established production processes for structural sandwich parts, the integration of the foam core formation in a wet pressing process is highly efficient and economical especially for complex structural parts.
Get full access to this article
View all access options for this article.
References
1.
KuppingerJ, HenningF., KoppG., SchönM, RotheB., RenklJ., PURtrain - Hybride, Sandwichbauweisen für Schienenfahrzeuge. Kunststoffe, 102(2012), 10, p. 175–180.
2.
GoldmannF., PMI Rigid Foam, A Delicate Balance. Kunststoffe international, 100(2010), 9, p. 141–143.
3.
BuffelB., Development of tool for the analysis and prediction of the mechanical properties of glass fibre reinforced polyurethane foam sandwich panels. Katholieke Universiteit Leuven, Belgien, Dissertation, 2014.
4.
PflugJ., VerpoestI., Sandwich Materials Selection Charts. Journal of Sandwich Structures and Materials, 5(2006), 8, p. 407–421.
5.
GiehlS., MitschangP., Process Integration, Fibre-reinforced Sandwich and Profile Structures in One Step. Kunststoffe international, 95(2005), 11, p. 76–78.
6.
HeimbsS., MiddendorfP., MaierM., Honeycomb Sandwich Material Modeling for Dynamic Simulations of Aircraft Interior Components. 9th International LS-DYNA Users Conference. Dearborn, Michigan, USA, 2006.
7.
MackT., PanzerU., PUR-LFI-Wabentechnik, ein Verfahren zur Herstellung biegesteifer Leichtbauteile. FAPU24 (2004) 4.
8.
StampB.S., Material- und Prozesscharakterisierung zur Herstellung von Sandwichleichtbauteilen mit Papierwabenkern und thermoplastischen faserverstärkten Deckschichten für die Anwendung im Fahrzeuginterieur.University Stuttgart, Dissertation, 2013.
SpitzerS., BürkleE., HufenbachW., Process Innovation, FRP Sandwich Structures Stimulate Lightweight Construction. Kunststoffe international, 103(2013), 9, p. 95–98.
11.
CampbellF.C., Manufacturing Processes for advanced composites.Oxford, Elsevier, 2004.
12.
HermannA., Optimierung der Eigenschaften von One-Step-Sandwich-SMC mit geschäumter SMC-Kernschicht.University Kassel, Dissertation, 2001.
13.
HaberstrohE., SchlummM., Properties and Manufacturing of Sandwich Parts with Phenolic Foam Cores. Journal of Polymer Engineering, 26(2006), 2-4, p. 213–226.
14.
JhanY., LeeY., ChungC., Resin flowing analysis in sandwich laminates unter VARTM process. Journal of Reinforced Plastics and Composites, 30(2011), 6, p. 533–545.
15.
Le GaultM., Processing within the PUR cure window. Composite World, 04.01.2014.
RissF., SchilpJ., ReinhartG., Load-dependent Optimization of Honeycombs for Sandwich Components - New Possibilities by Using Additive Layer Manufacturing. Physics Procedia, 56(2014), p. 327–335.
