All Outputs (81)

A validated analytical-numerical modelling strategy to predict residual stresses in single-track laser deposited IN718 (2018)
Journal Article

Direct Energy Deposition (DED) is being increasingly used to repair high value components that have been damaged in-service. The uptake of DED and laser cladding operations for repair is inhibited by accurate modelling techniques. Often the repair pr... Read More about A validated analytical-numerical modelling strategy to predict residual stresses in single-track laser deposited IN718.

Effect of post processing on the creep performance of laser powder bed fused Inconel 718 (2018)
Journal Article

In this study, the creep performance of laser powder bed fusion manufactured Inconel 718 specimens is studied in detail and compared with conventional hot-rolled specimens alongside as-built then heat-treated and as-built then hot-isostatic pressed s... Read More about Effect of post processing on the creep performance of laser powder bed fused Inconel 718.

Imaging material texture of as-deposited selective laser melted parts using spatially resolved acoustic spectroscopy (2018)
Journal Article

Additive manufacturing (AM) is a production technology where material is accumulated to create a structure, often through added shaped layers. The major advantage of additive manufacturing is in creating unique and complex parts for use in areas wher... Read More about Imaging material texture of as-deposited selective laser melted parts using spatially resolved acoustic spectroscopy.

Crystallographic texture can be rapidly determined by electrochemical surface analytics (2018)
Journal Article

Orientation affects application-defining properties of crystalline materials. Hence, information in this regard is highly-prized. We show that electrochemical jet processing (EJP), when coupled with accurate metrological appraisal, can characterise c... Read More about Crystallographic texture can be rapidly determined by electrochemical surface analytics.

The importance of microstructure in electrochemical jet processing (2018)
Journal Article

© 2018 Electrochemical jet processing (EJP) is an athermal technique facilitating precision micromachining and surface preparation, without recast layer generation. The role of the microstructure in determining machining characteristics has been larg... Read More about The importance of microstructure in electrochemical jet processing.

Targeted rework of powder bed fusion additive manufacturing (2018)
Conference Proceeding

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.

Effects of vibration on fringe projection systems (2018)
Presentation / Conference

A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks (2018)
Journal Article

In-situ alloying within laser powder-bed fusion, specifically Selective Laser Melting (SLM), has been investigated for the formulation of novel alloys from elemental powders to extend the benefits offered by these technologies. Inadequate preparation... Read More about A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks.

Precision enhanced electrochemical jet processing (2018)
Journal Article

Through electro-physical modification of the electrode gap in electrochemical jet techniques, precision has been shown to be greatly increased. Repeatable kerf widths approaching the diameter of the nozzle are demonstrated and the individual contribu... Read More about Precision enhanced electrochemical jet processing.

Electrolyte multiplexing in electrochemical jet processing (2018)
Journal Article

Electrolyte design for electrochemical jet processing (EJP) techniques can directly affect form and finish of machined structures. A newly developed, industrially focused, EJP machining centre was designed to incorporate complete control of all rele... Read More about Electrolyte multiplexing in electrochemical jet processing.

Modelling and Characterisation of Electrical Discharge TiC-Fe Cermet Coatings (2018)
Journal Article

The creation of coatings via Electrical Discharge (ED) methods can enhance the functionality of components which are subject to prior ED machining process steps. However, the industrial application of these methods has been limited due to poor unders... Read More about Modelling and Characterisation of Electrical Discharge TiC-Fe Cermet Coatings.

The influence of shot peening on the fatigue response of Ti-6Al-4V surfaces subject to different machining processes (2018)
Journal Article

Machining processes are known to drastically impact the performance and lifetime of a component subjected to fatigue in service. Therefore, understanding the effect of manufacturing processes on surface integrity is vital to determine their suitabili... Read More about The influence of shot peening on the fatigue response of Ti-6Al-4V surfaces subject to different machining processes.

Wear performance of TiC/Fe cermet electrical discharge coatings (2018)
Journal Article

The tribological behaviours of TiC-based cermet coatings, prepared by electrical discharge coating (EDC) using a semi-sintered TiC tool electrode, have been investigated. The as-deposited coatings exhibited complex microstructures, comprising TiC gra... Read More about Wear performance of TiC/Fe cermet electrical discharge coatings.

Creep behaviour of inconel 718 processed by laser powder bed fusion (2018)
Journal Article

Additive manufacturing lends itself well to the manufacture of aerospace parts due to the high complexity and small volume of many components found in modern aero engines. By exploiting additive manufacturing design freedoms, enhanced part functional... Read More about Creep behaviour of inconel 718 processed by laser powder bed fusion.

Advancing electrochemical jet methods through manipulation of the angle of address (2017)
Journal Article

Electrochemical jet processing techniques have traditionally been considered to be limited to planar interactions with the electrolyte jet being maintained normal to the workpiece surface. In this study, the viability and resultant effects of articul... Read More about Advancing electrochemical jet methods through manipulation of the angle of address.

Transitory electrochemical masking for precision jet processing techniques (2017)
Journal Article

Electrochemical jet processing techniques provide an efficient method for large area surface structuring and micro-milling, where the metallurgy of the near-surface is assured and not adversely affected by thermal loading. Here, doped electrolytes ar... Read More about Transitory electrochemical masking for precision jet processing techniques.

Targeted rework strategies for powder bed additive manufacture (2017)
Journal Article

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.

On the machinability of directed energy deposited Ti6Al4V (2017)
Journal Article

Current class Directed Energy Deposition (DED) techniques used for component manufacture and repair have inherently poor geometrical tolerance. Hence, there remains a requirement to apply conventional machining strategies post build in order to achie... Read More about On the machinability of directed energy deposited Ti6Al4V.

Modelling of single spark interactions during electrical discharge coating (2017)
Journal Article

Electrical discharge coating (EDC) methods may be used to enhance the surface functionality of electrical discharge machined components. However, industrial uptake of EDC has been restricted due to limited understanding of the fundamental interaction... Read More about Modelling of single spark interactions during electrical discharge coating.

Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing (2017)
Presentation / Conference Contribution
Xu, Z., Hyde, C. J., Thompson, A., Leach, R. K., Maskery, I., Tuck, C., & Clare, A. T. (2017). Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing.

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.