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New concept to aid efficient fibre integration into metal matrices during ultrasonic consolidation
Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, United Kingdom.
Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, United Kingdom.ORCID iD: 0000-0002-0480-4079
Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough, United Kingdom.
2017 (English)In: Proceedings of the Institution of mechanical engineers. Part B, journal of engineering manufacture, ISSN 0954-4054, E-ISSN 2041-2975, Vol. 231, no 7, p. 1105-1115Article in journal (Refereed) Published
Abstract [en]

Ultrasonic consolidation has been shown to be a viable metal-matrix-based smart composite additive layer manufacturing process. Yet, high quantity fibre integration has presented the requirement for a method of accurate positioning and fibre protection to maintain the fibre layout during ultrasonic consolidation. This study presents a novel approach for fibre integration during ultrasonic consolidation: channels are manufactured by laser processing on an ultrasonically consolidated sample. At the same time, controlled melt ejection is applied to aid accurate fibre placement and simultaneously reducing fibre damage occurrences. Microscopic, scanning electron microscopic and energy dispersive X-ray spectroscopic analyses are used for samples containing up to 10.5% fibres, one of the highest volumes in an ultrasonically consolidated composite so far. Up to 98% of the fibres remain in the channels after consolidation and fibre damage is reduced to less than 2% per sample. This study furthers the knowledge of high volume fibre embedment via ultrasonic consolidation for future smart material manufacturing. © Institution of Mechanical Engineers.

Place, publisher, year, edition, pages
London: Sage Publications, 2017. Vol. 231, no 7, p. 1105-1115
Keywords [en]
Metal matrix composites, ultrasonic consolidation, laser processing, aluminium
National Category
Composite Science and Engineering
Identifiers
URN: urn:nbn:se:hh:diva-37846DOI: 10.1177/0954405415592120ISI: 000402899000001Scopus ID: 2-s2.0-85020467094OAI: oai:DiVA.org:hh-37846DiVA, id: diva2:1247260
Note

Funding: EPSRC/IMCRC through grant number EPSRC IMCRC 275

Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2018-09-24Bibliographically approved

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Friel, R. J.

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