Fabrico rápido aditivo em produto: materiais e técnicas Liliana Pires, Martinho Oliveira ESAN Universidade de Aveiro

Transcrição

1 Fabrico rápido aditivo em produto: materiais e técnicas Liliana Pires, Martinho Oliveira ESAN Universidade de Aveiro Arcos de Valdevez, 15 de outubro de 2015

2 outline Part I Additive Manufacturing Techniques Product Development Liquid-based additive manufacturing techniques Solid-based additive manufacturing techniques Powder-based additive manufacturing techniques Part II R&D@esan.ua Glass Scaffolds by 3DP PrintCer3D porcelain by 3DP TV remote control KTM s headlight

3 Product Development additive Prototyping: > Developed in 1980 s > It uses a CAD model > It is possible the creation of parts, not just models. > Time and cost reduction (product development process) > Almost any shape is possible to produce

4 Two basic additive manufacturing methods 1. Subtractive Method (material removal) Example: CNC machining (typically works with metal or resins, including aluminum, brass, ABS, acetal, acrylic, PC, nylon, PEEK, PVC, phenolic, teflon, UHMWPE, ultem and wood). Advantages: wide selection of end-use materials, good dimensional control and surface finish, and a high degree of repeatability suitable for end-use manufacture. 2. Additive method (material addition) - adds layers of material one by one to build the solid part of a 3D object from bottom to top (The topic of this presentation)

5 Additive manufacturing. There are several ways to classify the additive additive manufacturing techniques. The classification used in this presentation is based on the form of the starting material (or supply phase): Liquid-based Solid-based Powder-based. Liquid and powder-based techniques seems to be more promising techniques than solid-based

6 Liquid-based additive manufacturing techniques. Starting material is a liquid. About a dozen additive manufacturing technologies are in this category, examples: Stereolithography (ST) Solid ground curing Polyjet Droplet deposition manufacturing (DDM) Robocasting

7 Liquid-based additive manufacturing techniques: SL/SLA the thickness of each layer as well as the resolution depend on the equipment used (typically 0,025 mm)

8 Liquid-based additive manufacturing techniques: Polyjet accuracy mm (high resolution)

9 Liquid-based additive manufacturing techniques: Robocasting

10 Solid-based additive manufacturing techniques. Starting material is a solid. Solid-based RP systems include the following processes: Laminated object manufacturing (LOM) Fused Filament Fabrication (FFF) / Fused deposition modeling (FDM )

11 Solid-based additive manufacturing techniques: FDM/FFF Low resolution in z axis (0.25mm)

12 Powder-based additive manufacturing techniques. Starting material is a powder. Powder-based RP systems include: Selective laser sintering/melting (SLS/SLM) Three dimensional printing (3DP)

13 Powder-based additive manufacturing techniques: 3DP

14 Biofabrication of glass scaffolds Objectives Inputs Characterization and development of glass powders to be used in regenerative medicine. Biofabrication by additive manufacturing techniques: threedimensional printing (3DP). Commercial powder characterization (zp Machine ZPrinter Zcorporation) Composition 14%TiO 2-43%P 2 O 5-43%CaO (T14P43) Standard model New formulations vitreous

15 Biofabrication of glass scaffolds Production of glass frit Milling DTA & TD; XDR; Particle size distribution Sieving (20µm<Ø 106µm) Particle size distribution; SEM; EDS, BET Post processing Printing models (3D printing) CAD model Glass powder T14P43 Mechanical tests; DRX; SEM; EDS; in vitro tests

16 Preparation of CAD model fabrico rápido aditivo em produto: materiais e técnicas Biofabrication of glass scaffolds (mm)

17 Biofabrication of glass scaffolds Powder: zp140 Binder: zb56 Deviation (%) width height 8,03 10,78 Powder: T14P43 Binder: Deionezed water (70%) + alcohol (30%) Deviation (%) width height 16,60 2,68 Conditions selected for printing samples: Glass powder formulation - T14P43 G80F20; Binder formulation with 70% deionized water and 30% alcohol; Thickness of printed powder layer mm; Saturation level of 69% in the shell and 0% in the core; Activating bleed compensation.

18 PrintCer3D: Fabrico rápido de produtos em porcelana por impressão 3D Parceiros: Objetivos exploração da impressão tridimensional (3D) como tecnologia alternativa para o fabrico rápido de produtos em porcelana. redução do tempo de manufatura melhor resposta às necessidades do mercado angariar novos mercados fabrico de peças com geometrias complexas que não são possíveis de obter através das técnicas convencionais de fabrico de produtos cerâmicos.

19 PrintCer3D: Fabrico rápido de produtos em porcelana por impressão 3D Inputs Pó comercial (zp ZPrinter) Binder comercial (zb 60) Modelo Padrão Composição: Pó de Porcelana Novas formulações cerâmicas e binder

20 PrintCer3D: Fabrico rápido de produtos em porcelana por impressão 3D Equipamento: Zprinter 310 Principais caraterísticas: Cor: monocromático Resolução: 300 x 450 dpi Velocidade construção eixo z: 25 mm/h Espessura da camada: mm Área de construção: 203 x 254 x 203 mm

21 PrintCer3D: Fabrico rápido de produtos em porcelana por impressão 3D Resultados Parciais

22 TV remote control

23 KTM s headlight

24 KTM s headlight

25 Martinho Oliveira Martinho Oliveira Escola Superior Aveiro Norte, Universidade de Aveiro Estrada do Cercal, Oliveira de Azeméis Tel. [+351] Fax [+351]