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All Outputs (10)

Geometrical effects on residual stress in selective laser melting (2018)
Journal Article
Parry, L., Ashcroft, I., & Wildman, R. (2019). Geometrical effects on residual stress in selective laser melting. Additive Manufacturing, 25, 166-175. https://doi.org/10.1016/j.addma.2018.09.026

Selective laser melting is an increasingly attractive technology for the manufacture of complex and low volume / high value metal parts. However, the inevitable residual stresses that are generated can lead to defects or build failure. Due to the com... Read More about Geometrical effects on residual stress in selective laser melting.

Targeted rework of powder bed fusion additive manufacturing (2018)
Conference Proceeding
Dryburgh, P., Patel, R., Catchpole-Smith, S., Hirsch, M., Parry, L., Smith, R. J., …Clare, A. T. (2018). Targeted rework of powder bed fusion additive manufacturing. In Proceedings of LPM2018 - the 19th International Symposium on Laser Precision Microfabrication (#18/030)

There is a clear industrial pull to fabricate high value components using premium high temperature aerospace materials by additive manufacturing. Inconveniently, the same materials’ properties which allow them to perform well in service render them... Read More about Targeted rework of powder bed fusion additive manufacturing.

Effective design and simulation of surface-based lattice structures featuring volume fraction and cell type grading (2018)
Journal Article
Maskery, I., Aremu, A., Parry, L., Wildman, R., Tuck, C., & Ashcroft, I. (2018). Effective design and simulation of surface-based lattice structures featuring volume fraction and cell type grading. Materials and Design, 155, 220-232. https://doi.org/10.1016/j.matdes.2018.05.058

In this paper we present a numerical investigation into surface-based lattice structures with the aim of facilitating their design for additive manufacturing. We give the surface equations for these structures and show how they can be used to tailor... Read More about Effective design and simulation of surface-based lattice structures featuring volume fraction and cell type grading.

Compressive failure modes and energy absorption in additively manufactured double gyroid lattices (2018)
Journal Article
Maskery, I., Aboulkhair, N. T., Aremu, A., Tuck, C., & Ashcroft, I. (in press). Compressive failure modes and energy absorption in additively manufactured double gyroid lattices. Additive Manufacturing, 16, https://doi.org/10.1016/j.addma.2017.04.003

Lattice structures are excellent candidates for lightweight, energy absorbing applications such as personal protective equipment. In this paper we explore several important aspects of lattice design and production by metal additive manufacturing, inc... Read More about Compressive failure modes and energy absorption in additively manufactured double gyroid lattices.

VOLCO: a predictive model for 3D printed microarchitecture (2018)
Journal Article
Gleadall, A., Ashcroft, I., & Segal, J. (in press). VOLCO: a predictive model for 3D printed microarchitecture. Additive Manufacturing, 21, https://doi.org/10.1016/j.addma.2018.04.004

Extrusion-based 3D printing is widely used for porous scaffolds in which polymer filaments are extruded in the form of log-pile structures. These structures are typically designed with the assumption that filaments have a continuous cylindrical profi... Read More about VOLCO: a predictive model for 3D printed microarchitecture.

Dynamic compressive response of additively manufactured AlSi10Mg alloy hierarchical honeycomb structures (2018)
Journal Article
Zhang, Y., Liu, T., Ren, H., Maskery, I., & Ashcroft, I. (2018). Dynamic compressive response of additively manufactured AlSi10Mg alloy hierarchical honeycomb structures. Composite Structures, 195, 45-59. https://doi.org/10.1016/j.compstruct.2018.04.021

Periodic honeycombs have been used for their high strength, low weight and multifunctionality. The quasi-static and dynamic compressive responses of three types of additively manufactured AlSi10Mg honeycomb structures, specifically a single-scale hon... Read More about Dynamic compressive response of additively manufactured AlSi10Mg alloy hierarchical honeycomb structures.

Electrical resistivity of additively manufactured AlSi10Mg for use in electric motors (2018)
Journal Article
Silbernagel, C., Ashcroft, I., Dickens, P., & Galea, M. (2018). Electrical resistivity of additively manufactured AlSi10Mg for use in electric motors. Additive Manufacturing, 21, https://doi.org/10.1016/j.addma.2018.03.027

Additive manufacturing (AM) opens up a design freedom beyond the limits of traditional manufacturing techniques. Electrical windings created through AM could lead to more powerful and compact electric motors, but only if the electrical properties of... Read More about Electrical resistivity of additively manufactured AlSi10Mg for use in electric motors.

Topology optimization of geometrically nonlinear structures using an evolutionary optimization method (2018)
Journal Article
Abdi, M., Ashcroft, I., & Wildman, R. (in press). Topology optimization of geometrically nonlinear structures using an evolutionary optimization method. Engineering Optimization, https://doi.org/10.1080/0305215X.2017.1418864

Iso-XFEM method is an evolutionary optimization method developed in our previous studies to enable the generation of high resolution topology optimised designs suitable for additive manufacture. Conventional approaches for topology optimization requi... Read More about Topology optimization of geometrically nonlinear structures using an evolutionary optimization method.

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.