Visualizza wikitesto di Additive manufacturing with vat polymerization method for precision polymer micro components production

:'''Authors and full affiliations:''' Ali Davoudinejada, Lucia C. Diaz-Perezb, Danilo Quagliottia, David Bue Pedersena, José A. Albajez-Garcíab, José A. Yagüe-Fabrab,Guido Toselloa
:'''Keywords:''' Micro precision manufacturing, Polymer components
:'''Abstract:''' The today’s business environment, the trend towards more product variety and customization is unbroken. Due to this development, the need of agile and reconfigurable production systems emerged to cope with various products and product families. To design and optimize production systems as well as to choose the optimal product matches, product analysis methods are needed. Indeed, most of the known methods aim to analyze a product or one product family on the physical level. Different product families, however, may differ largely in terms of the number and nature of components. This fact impedes an efficient comparison and choice of appropriate product family combinations for the production system. A new methodology is proposed to analyze existing products in view of their functional and physical architecture. The aim is to cluster these products in new assembly oriented product families for the
:'''Purpose:''' check the dimensional tolerances of the parts produced by additive manufacturing with microscope e polymerization 
:'''Design methodology/approach:''' investigation of dimensional and surface tolerance carried out using a focus variation microscope evaluating the contrast of the images with vat polymerization method.
:'''Findings:''' experimentation is allowed to highlight the repeatability of the machine to create quite precise geometries. There are two cases, the cylindrical surfaces are more precise, the box ones are less precise
:'''Limitations:''' to obtain small tolerances further processing is required
:'''Practical implications:''' the additive manufacturing technique allows to crate precise surfaces in the order of ten microns
:'''Originality/value:'' a particular measurement technique for additive manufacturing 
:'''References:''' [1] Adam G, Zimmer D. Design for Additive Manufacturing—Element transitions and aggregated structures. CIRP Journal of Manufacturing Science and Technology 2014;7:20–28. [2] Thompson MK, et al. Design for Additive Manufacturing: Trends, opportunities, considerations and constraints. CIRP Annals - Manufacturing Technology 2016;65:737-760. [3] Moroni G, Petrò S, Polini W. Geometrical product specification and verification in additive manufacturing. CIRP Annals - Manufacturing Technology 2017;66:157-160. [4] Dantan JY et al. Geometrical variations management for additive manufactured product. CIRP Annals - Manufacturing Technology 2017;66:161-164. [5] 17296-2:2015 ISO-DIS, Additive Manufacturing – General Principles – Part 2 Overview of Process Categories and Feedstock. Standard, International Organization for Standardization. [6] Vaezi M, Seitz H, Yang S. A review on 3D micro-additive manufacturing technologies, Int. J. Adv. Manuf. Technol. 2013;67:5:1721-1754. [7] Gibson I, Rosen DW, Stucker B, Photopolymerization Processes, in Additive Manufacturing Technologies, Boston, MA: Springer US 2010:78–119. [8] Decker C, Photoinitiated crosslinking polymerisation, Prog. Polym. Sci. 1996;21:4:593-650. [9] 52900:2015 ISO/ASTM, Additive manufacturing -- General principles -- Terminology. Standard, International Organization for Standardization, p. 19. [10] ASTM International, F2792-12a - Standard Terminology for Additive Manufacturing Technologies 2013.
:'''Link:'''  https://www.sciencedirect.com/science/article/pii/S2212827118305651