Abstract
This paper presents the development of a CAD conceived to support the modelling of lightweight and lattice structures just from the initial stages of the design process. A new environment, called LWSM (acronym of LightWeight Structures Modelling), has been implemented in Python programming language in an open-source CAD software to allow the fast modelling of several sandwich structures or the filling of solid parts with cubic and tetrahedral lattice structures which can be produced by Additive Manufacturing (AM) techniques. Several tests have been carried out to validate the tool, one of which is included in the paper. The design of a bracket component inside LWSM using a traditional dense geometry and a lattice structure is described. The use of Design for Additive Manufacturing (DfAM) functions helps the user in the design of innovative structures which can produced only with AM technologies. A significant change in the shape of the part respect to traditional solutions is noticed after the use of DfAM functions by experimenters: FEM analysis confirms a strong weight reduction.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Raymer, D.P.: Aircraft Design: A Conceptual Approach (Aiaa Education Series) 5th edn., ISBN-13: 978-1600869112 (2012)
Metra Consulting, Aluminum extrusions for the railway sector. http://www.metra.it/aluminium/EN/case-history-industry-unimaginable-sectors-vivalto-a-high-capacity-double-decker-train-railway-sector-259.aspx. Accessed Nov 2016
Boruciński, M., Królikowski, M.: Design of non-uniform truss structures for improved part properties. Adv. Manufact. Sci. Technol. 37(4), 77–85 (2013)
Hadi, A., Vignat, F., Villeneuve, F.: Design configurations and creation of lattice structures for metallic additive manufacturing. In: 14eme Colloque National AIP PRIMECA, Mar 2015, La Plagne, France (2015)
Staiano G., Gloria A., Ausanio G., Lanzotti A., Pensa C., Martorelli M.: Experimental study on hydrodynamic performances of naval propellers to adopt new additive manufacturing processes. Int. J. Interact. Des. Manuf. 1–14 (2016). ISSN: 1955-2513, doi:10.1007/s12008-016-0344-1
Aremu, A.O., Brennan-Craddock, J.P.J., Panesar, A., Ashcroft, I.A., Hague, R.J.M., Wildman, R.D., Tuck, C.: A voxel-based method of constructing and skinning conformal and functionally graded lattice structures suitable for additive manufacturing. Add. Manuf. 13, 1–13 (2017)
Rosen, D.: Computer-aided design for additive manufacturing of cellular structures. Comput. Aided. Des. Appl. 4(5), 585–594 (2007)
Bendsoe, M.P., Sigmund, O.: Topological Optimization, Theory. Methods and Application. Springer-Verlag, Berlin (2004)
Taggart, D.G., Dewhurst, P.: Development and validation of a numerical topology optimization scheme for two and three dimensional structures. Adv. Eng. Softw. 41, 910–915 (2010)
Altair Optistruct software. http://www.altairhyperworks.com/product/OptiStruct. Accessed Nov 2016
Ceruti, A. Liverani, A., and Bombardi, T.: Augmented vision and interactive monitoring in 3D printing process. Int. J. Interact. Des. Manuf. (IJIDeM) 1–11 (2016). doi:10.1007/s12008-016-0347-y
Martorelli, M., Gerbino, S., Lanzotti, A., Patalano, S., Vitolo, F.: Flatness, circularity and cylindricity errors in 3D printed models associated to size and position on the working plane. In: Eynard, B., Nigrelli, V., Oliveri, S.M., Peris-Fajarnes, G., Rizzuti, S. (eds.) JCM 2016. LNME, pp. 201–212. Springer, Cham (2007). doi:10.1007/978-3-319-45781-9_21
Ruegg, A.W.: Implementation of generalized finite element methods for homogenization problems. J. Sci. Comput. 17, 671–681 (2002)
Gonella, S., Ruzzene, M.: Homogenization of vibrating periodic lattice structures. Appl. Math. Modell. 32(4), 459–482 (2008)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer International Publishing AG
About this paper
Cite this paper
Ceruti, A., Ferrari, R., Liverani, A. (2017). Design for Additive Manufacturing Using LSWM: A CAD Tool for the Modelling of Lightweight and Lattice Structures. In: Campana, G., Howlett, R., Setchi, R., Cimatti, B. (eds) Sustainable Design and Manufacturing 2017. SDM 2017. Smart Innovation, Systems and Technologies, vol 68. Springer, Cham. https://doi.org/10.1007/978-3-319-57078-5_71
Download citation
DOI: https://doi.org/10.1007/978-3-319-57078-5_71
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-57077-8
Online ISBN: 978-3-319-57078-5
eBook Packages: EngineeringEngineering (R0)