...Peter Storey; Allin Groom; Vishak Perumal; Shadi Al-Ariss Purpose The purpose of this study is to establish a reproducible method for quantifying the anisotropy between printed layers based on interlayer temperature and, using this information, provide recommendations for maximising print strength...

...Francesco Bandinelli; Martina Scapin; Lorenzo Peroni Purpose Finite element (FE) analysis can be used for both design and verification of components. In the case of 3D-printed materials, a proper characterization of properties, accounting for anisotropy and raster angles, can help develop...

...Peter G. Kelly; Benjamin H. Gallup; Joseph D. Roy-Mayhew Purpose Many additively manufactured parts suffer from reduced interlayer strength. This anisotropy is necessarily tied to the orientation during manufacture. When individual features on a part have conflicting optimal orientations, the part...

... but decreased or remained similar in Z; Z:F strength anisotropy and stiffness anisotropy ratios increased. Z:F strain-at-break anisotropy ratio decreased; stiffness and strain-at-break anisotropy were most affected by changes to F properties, whereas strength anisotropy was most affected by changes to Z...

... failure mechanisms of LPBF-printed 316 L stainless steel were different at low applied load but wear anisotropy became less pronounced at high applied load. Rathod et al. (2019) revealed that LPBF-printed Al-12Si alloys showed significantly anisotropic wear rate due to different wear mechanisms...

... © Emerald Publishing Limited 2022 Emerald Publishing Limited Licensed re-use rights only CAD Advanced manufacturing technologies Composite materials Anisotropy Design verification To ensure that the toe insert testing is done according to the industry standard, a testing...

...Adelaide Nespoli; Nicola Bennato; Elena Villa; Francesca Passaretti Purpose This paper aims to investigate the microstructural anisotropy of Ti-6Al-4V samples fabricated by selective laser melting. Design/methodology/approach Specimens are fabricated through a Renishaw AM400 selective laser...

...Nadim S. Hmeidat; Bailey Brown; Xiu Jia; Natasha Vermaak; Brett Compton Purpose Mechanical anisotropy associated with material extrusion additive manufacturing (AM) complicates the design of complex structures. This study aims to focus on investigating the effects of design choices offered...

... machine and used to expose each powder layer during part fabrication to a near-uniform magnetic field of 20.4 mT prior to consolidation by the laser. Findings Permeagraph measurements of the parts showed that the alignment field introduced residual induction anisotropy of up to 46.4 ± 2.2% when...

... for design purposes associated with typical fused deposition modeled (FDM) components/parts. Emphasis was placed on characterizing the impacts of anisotropy and resulting trends independent of material toward developing a method that matched the level of engineering required for current limited structural...

... 2020 © Emerald Publishing Limited 2020 Emerald Publishing Limited Licensed re-use rights only Selective laser sintering Mechanical properties of materials Microstructure Metals Orientation Anisotropy National Science Foundation Graduate Research Fellowship Program 1144246...

... printed in the raster orientation that loaded the deposited filaments axially (0°) were stronger than parts printed with the filaments running primarily in the transverse orientation (90°). Because of the overall layered structure in an FFF part, and the anisotropy that is dependent on the raster...

... are introduced and the following short-hands are used: Mechanical properties Fused deposition modelling Additive manufacturing PLA Fused filament fabrication Anisotropy Interlayer bonds Desktop 3D printing Polylactic acid Digital fabrication Mechanical strength Parts obtained with a fused...

... properties of 3D printed objects. Ahn et al. (2002) affirmed the adverse effect of the anisotropy of the 3D printed part on its tensile strength (Ahn et al., 2002). The 3D printed parts were compared with the injection molded parts of the same designs and materials. The research results...

... properties of PBTIS were investigated at n_PTA/n_PIA = 7/3. A desktop wire drawing and extruding machine was used to fabricate the filaments, whose printability and anisotropy were tested by three-dimensional (3D) printing experiments. Findings A candidate content...

... acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) parts utilizing digital image correlation (DIC). Design/methodology/approach Tensile and shear characterizations of ABS and PC 3D-printed parts were performed to determine the extent of anisotropy present in 3D-printed materials. Specimens were...

... energy per unit volume) increases. The width of the columnar grain increases with E_V, resulting in a stronger anisotropy in microhardness between XOY and XOZ sections. Residual tensile stresses exist in the SLMed Ti6Al4V and increase with an increasing...

... Anisotropy Additive manufacturing Mass customization Mass production Stress concentration Mechanical properties of fused deposition modeling (FDM) specimens have been shown to depend on raster orientation, which is directly related to the build orientation, for materials such as: acrylonitrile...

... dimension of the specimen; and default or +45/−45°, i.e. crisscross rasters representing the machine’s default build pattern (Figure 2). © Emerald Group Publishing Limited 2015 Fatigue FDM Anisotropy Layered manufacturing (LM) methods are predominantly used to generate physical...

... of obtaining the results necessary to complete the evaluations and to determine the property ranges. Findings – Specifications of mechanical properties collected in one paper about mechanical properties and anisotropy enable to define limitations for prototype properties. Research limitations...