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This paper aims to collect in a structured manner different computer-aided engineering (CAE) tools especially developed for additive manufacturing (AM) that maximize the capabilities of this technology regarding product development. The flexibility of the AM process allows the manufacture of highly complex shapes that are not possible to produce by any other existing technology. This fact enables the use of some existing design tools like topology optimization that has already existed for decades and is used in limited cases, together with other novel developments like lattice design tools. These two technologies or design approaches demand a highly flexible manufacturing system to be applied and could not be used before, due to the conventional industrial process limitations. In this paper, these technologies will be described and combined together with other generic or specific design tools, introducing the study case of an additive manufactured mechanical design of a bicycle stem.
Daniel Nieto; Daniel Sánchez. Design for Additive Manufacturing: Tool Review and a Case Study. Applied Sciences 2021, 11, 1571 .
AMA StyleDaniel Nieto, Daniel Sánchez. Design for Additive Manufacturing: Tool Review and a Case Study. Applied Sciences. 2021; 11 (4):1571.
Chicago/Turabian StyleDaniel Nieto; Daniel Sánchez. 2021. "Design for Additive Manufacturing: Tool Review and a Case Study." Applied Sciences 11, no. 4: 1571.
The increasing interest of Large Format Additive Manufacturing (LFAM) technologies in various industrial sectors mainly lies on the attainable production of pieces reaching several cubic meters. These new technologies require the development of optimized materials with two-folded capabilities, able to satisfy functional in-service requirements but also showing a proper printability. Acrylonitrile Styrene Acrylate (ASA) is among the most interesting thermoplastic materials to be implemented in a LFAM device due to its excellent wettability and mechanical properties. This research focuses on the development and characterization of ASA and carbon fiber (CF) ASA composites suitable for LFAM. The rheological, thermal and mechanical properties of neat ASA and ASA containing 20 wt% CF are addressed. The results evidence the higher performance of the CF loaded composite compared to the raw ASA polymer (i.e., the 20 wt% CF composite shows a 350% increase in flexural Young's Modulus and a 500% increment in thermal conductivity compared with neat ASA). Additionally, both materials were successfully printed along perpendicular directions (X and Z), showing the maximum tensile strain for the composite printed along the X orientation as was expected. The results of the flexural tests are comparable or slightly higher than those of injected parts. Finally, the fracture surface was analysed, identifying different types of porosity.
Daniel Moreno Sánchez; María de la Mata; Francisco Javier Delgado; Víctor Casal; Sergio Ignacio Molina. Development of carbon fiber acrylonitrile styrene acrylate composite for large format additive manufacturing. Materials & Design 2020, 191, 108577 .
AMA StyleDaniel Moreno Sánchez, María de la Mata, Francisco Javier Delgado, Víctor Casal, Sergio Ignacio Molina. Development of carbon fiber acrylonitrile styrene acrylate composite for large format additive manufacturing. Materials & Design. 2020; 191 ():108577.
Chicago/Turabian StyleDaniel Moreno Sánchez; María de la Mata; Francisco Javier Delgado; Víctor Casal; Sergio Ignacio Molina. 2020. "Development of carbon fiber acrylonitrile styrene acrylate composite for large format additive manufacturing." Materials & Design 191, no. : 108577.