Title: Design of Composite Compression Molding Tools Using Large Scale Additive Manufacturing

Authors: Michael Bogdanor, Himal Agrawal, Eduardo Barocio, Anthony Favaloro, Brian Smiddy, Ken Susnjara and R. Byron Pipes

DOI: 10.33599/nasampe/s.20.0270

Abstract: In this work, both pieces of a two-sided, compression molding tool are additively manufactured and post-processed using Thermwood’s Large Scale Additive Manufacturing system. The printed geometries are machined to achieve net shape and for the insertion of cartridge heaters. The matched tools, made from 25% carbon fiber reinforced PESU, are used in the successful compression molding of a demonstration blocker door part made from a thermosetting prepreg platelet molding compound (PPMC). Design of the molded part and the additive manufactured tool was performed using the ADDITIVE3D and PPMC integrated workflow applications, respectively, to determine the manufacturing informed performance of the part and tool. Additionally, heat transfer simulations were performed to inform the molding process and requisite environmental conditions for successful molding including cartridge heater and platen temperature.

References: [1] Sudbury TZ, Springfield R, Kunc V, Duty C. An assessment of additive manufactured molds for hand-laid fiber reinforced composites. Int J Adv Manuf Technol 2017;90:1659–64. doi:10.1007/s00170-016-9464-9. [2] Hassen AA, Springfield R, Lindahl J, Post B, Love L, Duty C, et al. The durability of large-scale additive manufacturing composite molds. CAMX 2016 - Compos. Adv. Mater. Expo, 2016, p. 26–9. [3] Li H, Taylor G, Bheemreddy V, Iyibilgin O, Leu M, Chandrashekhara K. Modeling and characterization of fused deposition modeling tooling for vacuum assisted resin transfer molding process. Addit Manuf 2015;7:64–72. doi:http://dx.doi.org/10.1016/j.addma.2015.02.003. [4] Kunc V, Lindahl J, Dinwiddie R, Post B, Love L, Duty C, et al. Investigation of in-autoclave additive manufacturing composite tooling. CAMX 2016 - Compos. Adv. Mater. Expo, 2016. [5] Barocio E, Brenken B, Favaloro A, Pipes RB. Extrusion deposition additive manufacturing of composite molds for high-temperature applications. Int. SAMPE Tech. Conf., 2017, p. 1512–23. [6] Kuczko W, Wichniarek R, Górski F, Buń P, Zawadzki P. Application of Additively Manufactured Polymer Composite Prototypes in Foundry. Adv Sci Technol Res J 2015;9:20–7. doi:10.12913/22998624/2360. [7] Tábi T, Kovács NK, Sajó IE, Czigány T, Hajba S, Kovács JG. Comparison of thermal, mechanical and thermomechanical properties of poly(lactic acid) injection-molded into epoxy-based Rapid Prototyped (PolyJet) and conventional steel mold. J Therm Anal Calorim 2016;123:349–61. doi:10.1007/s10973-015-4997-y. [8] Brenken B, Barocio E, Favaloro A, Kunc V, Pipes RB. Development and validation of extrusion deposition additive manufacturing process simulations. Addit Manuf 2019;25:218–26. doi:10.1016/j.addma.2018.10.041. [9] Brenken B. Extrusion Deposition Additive Manufacturing of Fiber Reinforced Semi-crystalline Polymers. School of Aeronautics and Astronautics, Purdue University, 2017. [10] Barocio E, Favaloro A, Brenken B, Barocio E, Pipes RB, Favaloro A, et al. Fusion Bonding of Fiber Reinforced Semi-Crystalline Polymers in Extrusion Deposition Additive Manufacturing. School of Materials Engineering, Purdue University, 2017. doi:https://doi.org/10.1016/j.addma.2018.10.041. [11] Favaloro AJ, Brenken B, Barocio E, Pipes RB. Simulation of Polymeric Composites Additive Manufacturing using Abaqus. Sci Age Exp 2017:103–14. [12] Brenken B, Barocio E, Favaloro A, Kunc V, Pipes RB. Development and validation of extrusion deposition additive manufacturing process simulations. Addit Manuf 2019;25:218–26. doi:10.1016/j.addma.2018.10.041.

Conference: SAMPE 2020 | Virtual Series

Publication Date: 2020/06/01

SKU: TP20-0000000270

Pages: 15

Price: FREE