All Outputs (39)

Effects of defocus on the transfer function of coherence scanning interferometry (2017)
Journal Article

Coherence scanning interferometry (CSI) offers three dimensional (3D) measurement of surface topography with high precision and accuracy. Defocus within the interferometric objective lens, however, is commonly present in CSI measurements, and reduces... Read More about Effects of defocus on the transfer function of coherence scanning interferometry.

Feature-based characterisation of signature topography in laser powder bed fusion of metals (2017)
Journal Article

The use of state-of-the-art areal topography measurement instrumentation allows for a high level of detail in the acquisition of topographic information at micrometric scales. The three-dimensional geometric models of surface topography obtained from... Read More about Feature-based characterisation of signature topography in laser powder bed fusion of metals.

3-dimensional inkjet printing of macro structures from silver nanoparticles (2017)
Journal Article

The adoption of additive manufacturing technology is gaining interest for processing precious metals. In this study, the capability of inkjet printing was explored to fabricate macroscopic parts from commercial silver nanoparticle ink (AgNPs). A besp... Read More about 3-dimensional inkjet printing of macro structures from silver nanoparticles.

Development of mathematically-defined surfaces (2017)
Conference Proceeding

New software has been developed that enables the creation of areal surface topography representations. The goal of this software package is to utilise the mathematically-defined surface representations in the development of surface texture parameter... Read More about Development of mathematically-defined surfaces.

Additively manufactured lattice structures for precision engineering applications (2017)
Conference Proceeding

Error modelling of a hybrid five degree of freedom mechanism for manipulation of high repetition rate laser microtargets (2017)
Conference Proceeding

Industrial X-Ray computed tomography (2017)
Book

Flexible decoupled camera and projector fringe projection system using inertial sensors (2017)
Journal Article

Measurement of objects with complex geometry and many self occlusions is increasingly important in many fields, including additive manufacturing. In a fringe projection system, the camera and the projector cannot move independently with respect to ea... Read More about Flexible decoupled camera and projector fringe projection system using inertial sensors.

Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing (2017)
Conference Proceeding

The mechanical performance of additively manufactured (AM) components remains an issue, limiting the implementation of AM technologies. In this work, a new method is presented, to examine the evolution of defects in an Inconel 718 two-bar test specim... Read More about Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing.

Feature-based characterisation of laser powder bed fusion surfaces (2017)
Conference Proceeding

A novel algorithmic pipeline for the automated identification and dimensional/geometric characterisation of topographic formations of interest (surface features) is proposed, specifically aimed at the investigation of signature features left by laser... Read More about Feature-based characterisation of laser powder bed fusion surfaces.

Optimisation of surface topography characterisation for metal additive manufacturing using coherence scanning interferometry (2017)
Conference Proceeding

The surface topography of metal additive manufactured (AM) parts can be challenging to measure due to the presence of complex features, such as high slopes, step like recesses and protuberances, and local variations in reflectance. Recent innovations... Read More about Optimisation of surface topography characterisation for metal additive manufacturing using coherence scanning interferometry.

True-color 3D surface metrology for additive manufacturing using interference microscopy (2017)
Conference Proceeding

Coherence scanning interferometry (CSI) is widely used for surface topography characterisation. With the ability to measure both rough surfaces with the high slopes and optical finishes, CSI has made contibutions in fields from industrial machining t... Read More about True-color 3D surface metrology for additive manufacturing using interference microscopy.

Design and analysis of strut-based lattice structures for vibration isolation (2017)
Journal Article

This paper presents the design, analysis and experimental verification of strut-based lattice structures to enhance the mechanical vibration isolation properties of a machine frame, whilst also conserving its structural integrity. In addition, design... Read More about Design and analysis of strut-based lattice structures for vibration isolation.

An analysis of Type F2 software measurement standards for profile surface texture parameters [Abstract] (2017)
Conference Proceeding

Characterisation of the topography of metal additive surface features with different measurement technologies (2017)
Journal Article

© 2017 IOP Publishing Ltd. The challenges of measuring the surface topography of metallic surfaces produced by additive manufacturing are investigated. The differences between measurements made using various optical and non-optical technologies, incl... Read More about Characterisation of the topography of metal additive surface features with different measurement technologies.

The application of composite through-thickness assessment to additively manufactured structures (2017)
Conference Proceeding

This study looks into the applicability of through-thickness assessment to additive manufacturing (AM) carbon-fibre reinforced polymers (CFRPs). The study utilised a material extrusion printer that uses fused filament fabrication and composite filame... Read More about The application of composite through-thickness assessment to additively manufactured structures.

Staged thermomechanical testing of nickel superalloys produced by selective laser melting (2017)
Journal Article

The creep performance of additively manufactured components remains an issue before additive manufacturing can be put fully implemented. In this study, Inconel 718 two-bar specimens are produced by selective laser melting and subjected to a ‘staged’... Read More about Staged thermomechanical testing of nickel superalloys produced by selective laser melting.

High-precision lateral distortion measurement and correction in coherence scanning interferometry using an arbitrary surface (2017)
Journal Article

Lateral optical distortion is present in most optical imaging systems. In coherence scanning interferometry, distortion may cause field-dependent systematic errors in the measurement of surface topography. These errors become critical when high-preci... Read More about High-precision lateral distortion measurement and correction in coherence scanning interferometry using an arbitrary surface.

Optimization of surface measurement for metal additive manufacturing using coherence scanning interferometry (2017)
Journal Article

Surface topography measurement for metal additive manufacturing (AM) is a challenging task for contact and non-contact methods. In this paper, we present an experimental investigation of the use of coherence scanning interferometry (CSI) for measurem... Read More about Optimization of surface measurement for metal additive manufacturing using coherence scanning interferometry.

Industrial survey of ISO surface texture parameters (2017)
Journal Article

Results of an international survey are presented, detailing the use of surface texture parameters in industry. The survey received 179 responses from a total of 34 countries, revealing the use of a variety of parameters from ISO 4287, ISO 12085, ISO... Read More about Industrial survey of ISO surface texture parameters.