All Outputs (100)

An investigation into reinforced and functionally graded lattice structures (2016)
Journal Article

Lattice structures are regarded as excellent candidates for use in lightweight energy absorbing applications, such as crash protection. In this paper we investigate the crushing behaviour, mechanical properties and energy absorption of lattices made... Read More about An investigation into reinforced and functionally graded lattice structures.

Surface microstructuring to modify wettability for 3D printing of nano-filled inks (2016)
Journal Article

This paper investigates the effect of surface wettability on the cross-sectional profiles of printed nanofluid inks which can have a significant role on conductivity of printed lines that are used in the production of printed electronics. Glass subst... Read More about Surface microstructuring to modify wettability for 3D printing of nano-filled inks.

An investigation of the behavior of solvent based polycaprolactone ink for material jetting (2016)
Journal Article

Inkjet printing of polyimide insulators for the 3D printing of dielectric materials for microelectronic applications (2016)
Journal Article

In this article, we report the first continuous fabrication of inkjet-printed polyimide films, which were used as insulating layers for the production of capacitors. The polyimide ink was prepared from its precursor poly(amic) acid, and directly prin... Read More about Inkjet printing of polyimide insulators for the 3D printing of dielectric materials for microelectronic applications.

Shape complexity and process energy consumption in electron beam melting: a case of something for nothing in additive manufacturing? (2016)
Journal Article

Additive manufacturing (AM) technology is capable of building up component geometry in a layer-by-layer process, entirely without tools, molds, or dies. One advantage of the approach is that it is capable of efficiently creating complex product geome... Read More about Shape complexity and process energy consumption in electron beam melting: a case of something for nothing in additive manufacturing?.

Three dimensional ink-jet printing of biomaterials using ionic liquids and co-solvents (2016)
Journal Article

1-Ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]) and 1-butyl-3-methylimidazolium acetate ([C4C1Im][OAc]) have been used as solvents for the dissolution and ink-jet printing of cellulose from 1.0 to 4.8 wt%, mixed with the co-solvents 1-butanol and... Read More about Three dimensional ink-jet printing of biomaterials using ionic liquids and co-solvents.

Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy (2016)
Journal Article

Single track and single layer AlSi10Mg has been produced by selective laser melting (SLM) of alloy powder on a AlSi12 cast substrate. The SLM technique produced a cellular-dendritic ultra-fined grained microstructure. Chemical composition mapping an... Read More about Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy.

Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography (2016)
Journal Article

We used X-ray computed tomography (CT), microscopy and hardness measurements to study Al–Si10–Mg produced by selective laser melting (SLM). Specimens were subject to a series of heat treatments including annealing and precipitation hardening. The spe... Read More about Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography.

An inverse method for determining the spatially resolved properties of viscoelastic–viscoplastic three-dimensional printed materials (2015)
Journal Article

A method using experimental nanoindentation and inverse finite-element analysis (FEA) has been developed that enables the spatial variation of material constitutive properties to be accurately determined. The method was used to measure property varia... Read More about An inverse method for determining the spatially resolved properties of viscoelastic–viscoplastic three-dimensional printed materials.

On the formation of AlSi10Mg single tracks and layers in selective laser melting: Microstructure and nano-mechanical properties (2015)
Journal Article

Selective laser melting (SLM) is a relatively new manufacturing technique that can be used to process a range of materials. Aluminum alloys are potential candidates for SLM but are more difficult to process than the titanium alloys more commonly used... Read More about On the formation of AlSi10Mg single tracks and layers in selective laser melting: Microstructure and nano-mechanical properties.

On the Precipitation Hardening of Selective Laser Melted AlSi10Mg (2015)
Journal Article

Precipitation hardening of selective laser melted AlSi10Mg was investigated in terms of solution heat treatment and aging duration. The influence on the microstructure and hardness was established, as was the effect on the size and density of Si part... Read More about On the Precipitation Hardening of Selective Laser Melted AlSi10Mg.

Mechanical Properties of Ti-6Al-4V Selectively Laser Melted Parts with Body-Centred-Cubic Lattices of Varying cell size (2015)
Journal Article

Significant weight savings in parts can be made through the use of additive manufacture (AM), a process which enables the construction of more complex geometries, such as functionally graded lattices, than can be achieved conventionally. The existing... Read More about Mechanical Properties of Ti-6Al-4V Selectively Laser Melted Parts with Body-Centred-Cubic Lattices of Varying cell size.

The cost of additive manufacturing: machine productivity, economies of scale and technology-push (2015)
Journal Article

As part of the cosmos of digital fabrication technology, Additive Manufacturing (AM) systems are able to manufacture three-dimensional components and products directly from raw material and 3D design data. The layer-by-layer operating process of thes... Read More about The cost of additive manufacturing: machine productivity, economies of scale and technology-push.

A Study on the Laser Spatter and the Oxidation Reactions During Selective Laser Melting of 316L Stainless Steel, Al-Si10-Mg, and Ti-6Al-4V (2015)
Journal Article

The creation of an object by selective laser melting (SLM) occurs by melting contiguous areas of a powder bed according to a corresponding digital model. It is therefore clear that the success of this metal Additive Manufacturing (AM) technology reli... Read More about A Study on the Laser Spatter and the Oxidation Reactions During Selective Laser Melting of 316L Stainless Steel, Al-Si10-Mg, and Ti-6Al-4V.

Reducing porosity in AlSi10Mg parts processed by selective laser melting (2014)
Journal Article

Selective laser melting (SLM) is widely gaining popularity as an alternative manufacturing technique for complex and customized parts. SLM is a near net shape process with minimal post processing machining required dependent upon final application. T... Read More about Reducing porosity in AlSi10Mg parts processed by selective laser melting.

Aging behavior of thermoplastic elastomers in the laser sintering process (2014)
Journal Article

It is known that polymers used in laser sintering (LS) change their intrinsic properties due to processing conditions that are close to the crystalline melting temperature. This paper evaluates the aging behavior of a thermoplastic polyurethane powde... Read More about Aging behavior of thermoplastic elastomers in the laser sintering process.

An experimental study into the effects of bulk and flow behaviour of laser sintering polymer powders on resulting part properties (2014)
Journal Article

The properties of parts manufactured by laser sintering (LS) are, amongst others, influenced by the packing and flow efficiencies of the powders being processed. In particular, this study investigated the influence of the bulk and flow characteris... Read More about An experimental study into the effects of bulk and flow behaviour of laser sintering polymer powders on resulting part properties.

Effect of the build orientation on the mechanical properties and fracture modes of SLM Ti–6Al–4V (2014)
Journal Article

Recent research on the additive manufacturing (AM) of Ti alloys has shown that the mechanical properties of the parts are affected by the characteristic microstructure that originates from the AM process. To understand the effect of the microstructur... Read More about Effect of the build orientation on the mechanical properties and fracture modes of SLM Ti–6Al–4V.

The formation of α + β microstructure in as-fabricated selective laser melting of Ti–6Al–4V (2014)
Journal Article

Ti-6Al-4V parts made by the additive manufacturing (AM) technique selective laser melting (SLM) generally show poor ductility due to their fine martensitic microstructure. This study was designed to assess whether a more suitable microstructure can b... Read More about The formation of α + β microstructure in as-fabricated selective laser melting of Ti–6Al–4V.

On the texture formation of selective laser melted Ti-6Al-4V (2014)
Journal Article

Selective laser melting (SLM) has been shown to be an attractive manufacturing route for the production of α/β titanium alloys. The relationship between the SLM process parameters and the microstructure of titanium alloys has been the object of sever... Read More about On the texture formation of selective laser melted Ti-6Al-4V.