A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting

Maskery, I.; Aboulkhair, N.T.; Aremu, A.O.; Tuck, C.J.; Ashcroft, I.A.; Wildman, R.D.; Hague, R.J.M.

doi:10.1016/j.msea.2016.06.013

Design optimization for an additively manufactured automotive component (2018)
Journal Article
Abdi, M., Ashcroft, I., & Wildman, R. D. (2018). Design optimization for an additively manufactured automotive component. International Journal of Powertrains, 7(1-3), https://doi.org/10.1504/IJPT.2018.090371

The aim of this paper is to investigate the design optimization and additive manufacture of automotive components. A Titanium brake pedal processed through Selective Laser Melting (SLM) is considered as a test case. Different design optimisation tech... Read More about Design optimization for an additively manufactured automotive component.

Effect of annealing on the microstructure and magnetic properties of soft magnetic Fe-Si produced via laser additive manufacturing (2018)
Journal Article
Garibaldi, M., Ashcroft, I., Lemke, J. N., Simonelli, M., & Hague, R. (2018). Effect of annealing on the microstructure and magnetic properties of soft magnetic Fe-Si produced via laser additive manufacturing. Scripta Materialia, 142, 121-125. https://doi.org/10.1016/j.scriptamat.2017.08.042

© 2017 Acta Materialia Inc. We investigate the effect of annealing on the properties of Fe-6.9wt% Si produced by Selective Laser Melting (SLM), a powder-bed additive manufacturing technology. Results show that annealing at 1150 °C for 1 h produces a... Read More about Effect of annealing on the microstructure and magnetic properties of soft magnetic Fe-Si produced via laser additive manufacturing.

Insights into the mechanical properties of several triplyperiodic minimal surface lattice structures made by polymeradditive manufacturing (2017)
Journal Article
Maskery, I., Sturm, L., Aremu, A., Panesar, A., Williams, C., Tuck, C., …Hague, R. J. (2018). Insights into the mechanical properties of several triplyperiodic minimal surface lattice structures made by polymeradditive manufacturing. Polymer, 152, 62-71. https://doi.org/10.1016/j.polymer.2017.11.049

Three-dimensional lattices have applications across a range of fields including structural lightweighting, impact absorption and biomedicine. In this work, lattices based on triply periodic minimal surfaces were produced by polymer additive manufactu... Read More about Insights into the mechanical properties of several triplyperiodic minimal surface lattice structures made by polymeradditive manufacturing.

Targeted rework strategies for powder bed additive manufacture (2017)
Journal Article
Hirsch, M., Dryburgh, P., Catchpole-Smith, S., Patel, R., Parry, L., Sharples, S., …Clare, A. (2018). Targeted rework strategies for powder bed additive manufacture. Additive Manufacturing, 19, 127-133. https://doi.org/10.1016/j.addma.2017.11.011

A major factor limiting the adoption of powder-bed-fusion additive manufacturing for production of parts is the control of build process defects and the effect these have upon the certification of parts for structural applications. In response to thi... Read More about Targeted rework strategies for powder bed additive manufacture.

Strategies for functionally graded lattice structures derived using topology optimisation for additive manufacturing (2017)
Journal Article
Panesar, A., Abdi, M., Hickman, D., & Ashcroft, I. (2018). Strategies for functionally graded lattice structures derived using topology optimisation for additive manufacturing. Additive Manufacturing, 19, https://doi.org/10.1016/j.addma.2017.11.008

A number of strategies that enable lattice structures to be derived from Topology Optimisation (TO) results suitable for Additive Manufacturing (AM) are presented. The proposed strategies are evaluated for mechanical performance and assessed for AM s... Read More about Strategies for functionally graded lattice structures derived using topology optimisation for additive manufacturing.

3D reactive inkjet printing of polydimethylsiloxane (2017)
Journal Article
Sturgess, C., Tuck, C. J., Ashcroft, I. A., & Wildman, R. D. (2017). 3D reactive inkjet printing of polydimethylsiloxane. Journal of Materials Chemistry C, 5(37), 9733-9745. https://doi.org/10.1039/c7tc02412f

© 2017 The Royal Society of Chemistry. Material jetting is a process whereby liquid material can be deposited onto a substrate to solidify. Through a process of progressive additional layers, this deposition can then be used to produce 3D structures.... Read More about 3D reactive inkjet printing of polydimethylsiloxane.

3D inkjet printing of electronics using UV conversion (2017)
Journal Article
Saleh, E., Zhang, F., He, Y., Vaithilingam, J., Fernandez, J. L., Wildman, R. D., …Tuck, C. (2017). 3D inkjet printing of electronics using UV conversion. Advanced Materials Technologies, 2(10), Article 1700134. https://doi.org/10.1002/admt.201700134

The production of electronic circuits and devices is limited by current manufacturing methods that limit both the form and potentially the performance of these systems. Additive Manufacturing (AM) is a technology that has been shown to provide cross... Read More about 3D inkjet printing of electronics using UV conversion.

3D inkjet printing of tablets exploiting bespoke complex geometries for controlled and tuneable drug release (2017)
Journal Article
Kyobula, M., Adedeji, A., Alexander, M. R., Saleh, E., Wildman, R. D., Ashcroft, I., …Roberts, C. J. (2017). 3D inkjet printing of tablets exploiting bespoke complex geometries for controlled and tuneable drug release. Journal of Controlled Release, 261, 207-215. https://doi.org/10.1016/j.jconrel.2017.06.025

A hot melt 3D inkjet printing method with the potential to manufacture formulations in complex and adaptable geometries for the controlled loading and release of medicines is presented. This first use of a precisely controlled solvent free inkjet pri... Read More about 3D inkjet printing of tablets exploiting bespoke complex geometries for controlled and tuneable drug release.

A Tripropylene Glycol Diacrylate-based Polymeric Support Ink for Material Jetting (2017)
Journal Article
Aboulkhair, N., He, Y., Zhang, F., Saleh, E., Vaithilingam, J., Aboulkhair, N. T., …Wildman, R. D. (2017). A Tripropylene Glycol Diacrylate-based Polymeric Support Ink for Material Jetting. Additive Manufacturing, 16, 153-161. https://doi.org/10.1016/j.addma.2017.06.001

© 2017 Support structures and materials are indispensable components in many Additive Manufacturing (AM) systems in order to fabricate complex 3D structures. For inkjet-based AM techniques (known as Material Jetting), there is a paucity of studies o... Read More about A Tripropylene Glycol Diacrylate-based Polymeric Support Ink for Material Jetting.

Calorimetric study and microstructure analysis of the order-disorder phase transformation in silicon steel built by SLM (2017)
Journal Article
Lemke, J., Simonelli, M., Garibaldi, M., Ashcroft, I., Hague, R., Vedani, M., …Tuck, C. (2017). Calorimetric study and microstructure analysis of the order-disorder phase transformation in silicon steel built by SLM. Journal of Alloys and Compounds, 722, 293-301. https://doi.org/10.1016/j.jallcom.2017.06.085

Innovative Additive Manufacturing (AM) technologies like Selective Laser Melting (SLM) could prove to be efficient for the processing of brittle silicon steel (Fe-Si) with high silicon content. This research elucidates the effects of heat-treatment o... Read More about Calorimetric study and microstructure analysis of the order-disorder phase transformation in silicon steel built by SLM.

Design framework for multifunctional additive manufacturing: coupled optimization strategy for structures with embedded functional systems (2017)
Journal Article
Panesar, A., Ashcroft, I., Brackett, D., Wildman, R. D., & Hague, R. (2017). Design framework for multifunctional additive manufacturing: coupled optimization strategy for structures with embedded functional systems. Additive Manufacturing, 16, https://doi.org/10.1016/j.addma.2017.05.009

The driver for this research is the development of multi-material additive manufacturing processes that provide the potential for multi-functional parts to be manufactured in a single operation. In order to exploit the potential benefits of this emer... Read More about Design framework for multifunctional additive manufacturing: coupled optimization strategy for structures with embedded functional systems.

Selective laser melting of aluminium alloys (2017)
Journal Article
Aboulkhair, N. T., Everitt, N. M., Maskery, I., Ashcroft, I., & Tuck, C. (2017). Selective laser melting of aluminium alloys. MRS Bulletin, 42(4), 311-319. https://doi.org/10.1557/mrs.2017.63

Metal additive manufacturing (AM) processes, such as selective laser melting, enable powdered metals to be formed into arbitrary 3D shapes. For aluminium alloys, which are desirable in many high-value applications for their low density and good mecha... Read More about Selective laser melting of aluminium alloys.

An investigation into the depth and time dependent behavior of UV cured 3D ink jet printed objects (2017)
Journal Article
Chen, X., Ashcroft, I., Tuck, C., He, Y., Hague, R. J., & Wildman, R. D. (2017). An investigation into the depth and time dependent behavior of UV cured 3D ink jet printed objects. Journal of Materials Research, 32(8), 1407-1420. https://doi.org/10.1557/jmr.2017.4

An ultra-violet (UV) curable ink jet 3D printed material was characterized by an inverse finite element modeling (IFEM) technique employing a nonlinear viscoelastic–viscoplastic (NVEVP) material constitutive model; this methodology was compared direc... Read More about An investigation into the depth and time dependent behavior of UV cured 3D ink jet printed objects.

Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys (2017)
Journal Article
Catchpole-Smith, S., Aboulkhair, N., Parry, L., Tuck, C., Ashcroft, I., & Clare, A. (in press). Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys. Additive Manufacturing, https://doi.org/10.1016/j.addma.2017.02.002

The high thermal gradients experienced during manufacture via selective laser melting commonly result in cracking of high γ/γ′ Nickel based superalloys. Such defects cannot be tolerated in applications where component integrity is of paramount import... Read More about Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys.

A novel approach to design lesion-specific stents for minimum recoil (2016)
Journal Article
Farhan Khan, M., Brackett, D., Ashcroft, I., Tuck, C., & Wildman, R. D. (in press). A novel approach to design lesion-specific stents for minimum recoil. Journal of Medical Devices, 11(1), Article 011001. https://doi.org/10.1115/1.4034880

Stent geometries are obtained by topology optimization for minimized compliance under different stenosis levels and plaque material types. Three levels of stenosis by cross-sectional area, i.e., 30%, 40%, and 50% and three different plaque material p... Read More about A novel approach to design lesion-specific stents for minimum recoil.

Hierarchical remeshing strategies with mesh mapping for topology optimisation (2016)
Journal Article
Panesar, A., Brackett, D., Ashcroft, I., Wildman, R. D., & Hague, R. (2017). Hierarchical remeshing strategies with mesh mapping for topology optimisation. International Journal for Numerical Methods in Engineering, https://doi.org/10.1002/nme.5488

This work investigates the use of hierarchical mesh decomposition strategies for topology optimisation using bi-directional evolutionary structural optimisation algorithm. The proposed method uses a dual mesh system that decouples the design variable... Read More about Hierarchical remeshing strategies with mesh mapping for topology optimisation.

A voxel-based method of constructing and skinning conformal and functionally graded lattice structures suitable for additive manufacturing (2016)
Journal Article
Aremu, A., Brennan-Craddock, J., Panesar, A., Ashcroft, I., Hague, R. J., Wildman, R. D., & Tuck, C. (in press). A voxel-based method of constructing and skinning conformal and functionally graded lattice structures suitable for additive manufacturing. Additive Manufacturing, 13, https://doi.org/10.1016/j.addma.2016.10.006

Additive Manufacturing (AM) enables the production of geometrically complex parts that are difficult to manufacture by other means. However, conventional CAD systems are limited in the representation of such parts. This issue is exacerbated when latt... Read More about A voxel-based method of constructing and skinning conformal and functionally graded lattice structures suitable for additive manufacturing.

A combined inverse finite element – elastoplastic modelling method to simulate the size-effect in nanoindentation and characterise materials from the nano to micro-scale (2016)
Journal Article
Chen, X., Ashcroft, I., Wildman, R. D., & Tuck, C. (2017). A combined inverse finite element – elastoplastic modelling method to simulate the size-effect in nanoindentation and characterise materials from the nano to micro-scale. International Journal of Solids and Structures, 104-105, 25-34. https://doi.org/10.1016/j.ijsolstr.2016.11.004

Material properties such as hardness can be dependent on the size of the indentation load when that load is small, a phenomenon known as the indentation size effect (ISE). In this work an inverse finite element method (IFEM) is used to investigate th... Read More about A combined inverse finite element – elastoplastic modelling method to simulate the size-effect in nanoindentation and characterise materials from the nano to micro-scale.

3D inkjet-printed UV-curable inks for multi-functional electromagnetic applications (2016)
Journal Article
Saleh, E., Woolliams, P., Clarke, B., Gregory, A., Greedy, S., Smartt, C., …Tuck, C. (2017). 3D inkjet-printed UV-curable inks for multi-functional electromagnetic applications. Additive Manufacturing, 13, 143-148. https://doi.org/10.1016/j.addma.2016.10.002

Inkjet printing of multiple materials is usually processed in multiple steps due to various jetting and curing/sintering conditions. In this paper we report on the development of all inkjet-printed UV-curable electromagnetic responsive inks in a sing... Read More about 3D inkjet-printed UV-curable inks for multi-functional electromagnetic applications.

A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting (2016)
Journal Article
Maskery, I., Aboulkhair, N., Aremu, A., Tuck, C., Ashcroft, I., Wildman, R., & Hague, R. (2016). A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting. Materials Science and Engineering: A, 670, 264-274. https://doi.org/10.1016/j.msea.2016.06.013

Metal components with applications across a range of industrial sectors can be manufactured by selective laser melting (SLM). A particular strength of SLM is its ability to manufacture components incorporating periodic lattice structures not realisab... Read More about A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting.

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