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Dr ALISTAIR SPEIDEL's Outputs (4)

A dual material removal mechanism for clearing of obstructed holes via electrical discharge machining (2021)
Journal Article
Castro-Palacios, M., Ahmed, S., Ahmed, N., Murray, J. W., Speidel, A., Duffin, J., Kell, J., & Clare, A. T. (2022). A dual material removal mechanism for clearing of obstructed holes via electrical discharge machining. Manufacturing Letters, 31, 10-14. https://doi.org/10.1016/j.mfglet.2021.12.003

Cooling hole blockages in gas turbine blades can occur during operation, detrimentally reducing performance and resulting in premature removal from service. Here, electrical discharge machining (EDM) is used to unblock fine holes, which have been obs... Read More about A dual material removal mechanism for clearing of obstructed holes via electrical discharge machining.

The interaction of volatile metal coatings during the laser powder bed fusion of copper (2021)
Journal Article
Speidel, A., Wadge, M. D., Gargalis, L., Cooper, T. P., Reynolds, W., Grant, D., Hague, R., Clare, A. T., & Murray, J. W. (2022). The interaction of volatile metal coatings during the laser powder bed fusion of copper. Journal of Materials Processing Technology, 299, Article 117332. https://doi.org/10.1016/j.jmatprotec.2021.117332

The high optical reflectance of Cu at near-infrared wavelengths narrows the process window to fabricate Cu parts by laser powder bed fusion (LPBF). Coating powders with optically absorptive materials has been investigated to improve processability an... Read More about The interaction of volatile metal coatings during the laser powder bed fusion of copper.

Surface integrity in metal machining - Part II: Functional performance (2021)
Journal Article
la Monaca, A., Murray, J. W., Liao, Z., Speidel, A., Robles-Linares, J. A., Axinte, D. A., Hardy, M. C., & Clare, A. T. (2021). Surface integrity in metal machining - Part II: Functional performance. International Journal of Machine Tools and Manufacture, 164, Article 103718. https://doi.org/10.1016/j.ijmachtools.2021.103718

Material removal operations play a pivotal role in the manufacture of key components, required for engineering systems to operate safely and efficiently under ever more advanced functional requirements and over extended life cycles. To further step u... Read More about Surface integrity in metal machining - Part II: Functional performance.

Unveiling surfaces for advanced materials characterisation with large-area electrochemical jet machining (2021)
Journal Article
Speidel, A., Xu, D., Bisterov, I., Mitchell-Smith, J., & Clare, A. T. (2021). Unveiling surfaces for advanced materials characterisation with large-area electrochemical jet machining. Materials and Design, 202, Article 109539. https://doi.org/10.1016/j.matdes.2021.109539

Surface preparation for advanced materials inspection methods like electron backscatter diffraction (EBSD) generally involve laborious and destructive material sectioning and sequential polishing steps, as EBSD is sensitive to both sample topography... Read More about Unveiling surfaces for advanced materials characterisation with large-area electrochemical jet machining.