Parametric shape optimization for combined additive–subtractive manufacturing
Visualitza/Obre
Cita com:
hdl:2117/174732
Tipus de documentArticle
Data publicació2020-01
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
ProjecteEMUSIC - Efficient Manufacturing for Aerospace Components USing Additive Manufacturing, Net Shape HIP and Investment Casting (EC-H2020-690725)
CAxMan - Computer Aided Technologies for Additive Manufacturing (EC-H2020-680448)
CAxMan - Computer Aided Technologies for Additive Manufacturing (EC-H2020-680448)
Abstract
In industrial practice, additive manufacturing (AM) processes are often followed by post-processing operations such as heat treatment, subtractive machining, milling, etc., to achieve the desired surface quality and dimensional accuracy. Hence, a given part must be 3D-printed with extra material to enable this finishing phase. This combined additive/subtractive technique can be optimized to reduce manufacturing costs by saving printing time and reducing material and energy usage. In this work, a numerical methodology based on parametric shape optimization is proposed for optimizing the thickness of the extra material, allowing for minimal machining operations while ensuring the finishing requirements. Moreover, the proposed approach is complemented by a novel algorithm for generating inner structures to reduce the part distortion and its weight. The computational effort induced by classical constrained optimization methods is alleviated by replacing both the objective and constraint functions by their sparse grid surrogates. Numerical results showcase the effectiveness of the proposed approach.
Descripció
The final publication is available at Springer via http://dx.doi.org/10.1007/s11837-019-03886-x
CitacióTamellini, L. [et al.]. Parametric shape optimization for combined additive–subtractive manufacturing. "JOM", Gener 2020, vol. 72, núm. 1, p. 448-457.
ISSN1047-4838
Versió de l'editorhttps://link.springer.com/article/10.1007/s11837-019-03886-x
Altres identificadorshttps://arxiv.org/abs/1907.01370
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
26012489.pdf | 2,382Mb | Visualitza/Obre |