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Spatially Resolved Acoustic Spectroscopy Towards Online Inspection of Additive Manufacturing (2018)
Conference Proceeding
Milesh Pieris, D., Patel, R., Dryburgh, P., Hirsch, M., Li, W., Sharples, S. D., …Clark, M. (2018). Spatially Resolved Acoustic Spectroscopy Towards Online Inspection of Additive Manufacturing. In 57th Annual Conference of the British Institute of Non-Destructive Testing

High-integrity engineering applications such as aerospace will not permit the incorporation of components containing any structural defects. The current generation of additive manufacturing platforms yield components with relatively high levels of... Read More about Spatially Resolved Acoustic Spectroscopy Towards Online Inspection of Additive Manufacturing.

A validated analytical-numerical modelling strategy to predict residual stresses in single-track laser deposited IN718 (2018)
Journal Article
Walker, T., Bennett, C., Lee, T., & Clare, A. (2019). A validated analytical-numerical modelling strategy to predict residual stresses in single-track laser deposited IN718. International Journal of Mechanical Sciences, 151, 609-621. https://doi.org/10.1016/j.ijmecsci.2018.12.004

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
Xu, Z., Murray, J., Hyde, C., & Clare, A. (2018). Effect of post processing on the creep performance of laser powder bed fused Inconel 718. Additive Manufacturing, 24, 486-497. https://doi.org/10.1016/j.addma.2018.10.027

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
Patel, R., Hirsch, M., Dryburgh, P., Pieris, D., Achamfuo-Yeboah, S., Smith, R., …Clark, M. (2018). Imaging material texture of as-deposited selective laser melted parts using spatially resolved acoustic spectroscopy. Applied Sciences, 8(10), Article 1991. https://doi.org/10.3390/app8101991

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
Speidel, A., Su, R., Mitchell-Smith, J., Dryburgh, P., Bisterov, I., Pieris, D., …Clare, A. T. (2018). Crystallographic texture can be rapidly determined by electrochemical surface analytics. Acta Materialia, 159, 89-101. https://doi.org/10.1016/j.actamat.2018.07.059

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
Speidel, A., Mitchell-Smith, J., Bisterov, I., & Clare, A. T. (2018). The importance of microstructure in electrochemical jet processing. Journal of Materials Processing Technology, 262, 459-470. https://doi.org/10.1016/j.jmatprotec.2018.07.022

© 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
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.

The effects of vibration on fringe projection systems (2018)
Conference Proceeding
Bointon, P., Todhunter, L., Stavroulakis, P., Clare, A., & Leach, R. (2018). The effects of vibration on fringe projection systems.

Mechanical vibration noise is a significant source of error in precision measuring instruments. Errors due to vibration can be detected in measurement signals, and so methods to control mechanical vibration must be considered throughout the design pr... Read More about The effects of vibration on fringe projection systems.

Effects of vibration on fringe projection systems (2018)
Presentation / Conference
Bointon, P., Todhunter, L., Stavroulakis, P., Clare, A., & Leach, R. (2018, June). Effects of vibration on fringe projection systems. Paper presented at euspen 18th International Conference & Exhibition

A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks (2018)
Journal Article
Simonelli, M., Aboulkhair, N. T., Cohen, P., Murray, J. W., Clare, A. T., Tuck, C., & Hague, R. J. (in press). A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks. Materials Characterization, https://doi.org/10.1016/j.matchar.2018.05.039

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
Clare, A. T., Speidel, A., Bisterov, I., Jackson-Crisp, A., & Mitchell-Smith, J. (2018). Precision enhanced electrochemical jet processing. CIRP Annals - Manufacturing Technology, 67(1), 205-208. https://doi.org/10.1016/j.cirp.2018.04.086

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
Mitchell-Smith, J., Speidel, A., Bisterov, I., & Clare, A. T. (2018). Electrolyte multiplexing in electrochemical jet processing. Procedia CIRP, 68, (483-487). doi:10.1016/j.procir.2017.12.088. ISSN 2212-8271

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
Algodi, S. J., Murray, J. W., Brown, P. D., & Clare, A. T. (2018). Modelling and Characterisation of Electrical Discharge TiC-Fe Cermet Coatings. Procedia CIRP, 68, 28-33. https://doi.org/10.1016/j.procir.2017.12.017

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
Xu, Z., Dunleavey, J., Antar, M., Hood, R., Soo, S., Kucukturk, G., …Clare, A. (2018). The influence of shot peening on the fatigue response of Ti-6Al-4V surfaces subject to different machining processes. International Journal of Fatigue, 111, https://doi.org/10.1016/j.ijfatigue.2018.02.022

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
Algodi, S. J., Murray, J. W., Brown, P. D., & Clare, A. T. (2018). Wear performance of TiC/Fe cermet electrical discharge coatings. Wear, 402-403, https://doi.org/10.1016/j.wear.2018.02.007

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
Xu, Z., Hyde, C., Tuck, C., & Clare, A. (2018). Creep behaviour of inconel 718 processed by laser powder bed fusion. Journal of Materials Processing Technology, 256, https://doi.org/10.1016/j.jmatprotec.2018.01.040

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.