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Akademický článek

A benchmark activity on the fatigue life assessment of AlSi10Mg components manufactured by L-PBF

Autor: S. Beretta, L. Patriarca, M. Gargourimotlagh, A. Hardaker, D. Brackett, M. Salimian, J. Gumpinger, T. Ghidini

Publikováno v: Materials & Design, Vol 218, Iss , Pp 110713- (2022)

One of the challenges associated with additive manufacturing (AM) is the definition of an assessment route which considers the main process signatures of the AM process. To this end, this work presents a complete benchmark activity for the assessment

Externí odkaz: https://doaj.org/article/63bfd92d9a72452eacf7ef83cd761ae6

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Akademický článek

3D printing of high performance polymer-bonded PEEK-NdFeB magnetic composite materials

Autor: L. Pigliaru, M. Rinaldi, L. Ciccacci, A. Norman, T. Rohr, T. Ghidini, F. Nanni

Publikováno v: Functional Composite Materials, Vol 1, Iss 1, Pp 1-17 (2020)

Abstract Permanent Rare Earth magnets are becoming more and more important in efficient motors and generators with high energy density. Among them NdFeB magnets are the most employed, with NdFeB having higher remanence, high coercivity and energy pro

Externí odkaz: https://doaj.org/article/02dc18283e074f34bbf4cbd129fc8707

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Advanced manufacturing of titanium propellant tanks for space applications part 1: tank design and demonstrator manufacturing

Autor: A. Robelou, R. Bellarosa, K. Nor, D. Andrews, T. Ghidini, N. Iqbal, Andrew Norman, J. Martin, S. Dodds, Martina Meisnar

Publikováno v: CEAS Space Journal. 15:127-137

Satellite propellant tanks are mostly built from titanium alloys using expensive forgings, which have a long lead time and require significant amounts of machining. The propellant tank components are then welded using fusion-based welding techniques

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f677df5163de6d24edeb649cd5d4a2c
https://doi.org/10.1007/s12567-021-00397-x

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Advanced manufacturing of titanium propellant tanks for space applications part 2: a comparative study of residual stresses

Autor: Martina Meisnar, D. Andrews, Richard B. Freeman, Thomas Rohr, S. Dodds, R. Bellarosa, T. Ghidini, Andrew Norman, Joe Kelleher, A. Graham, Joe M. Bennett

Publikováno v: CEAS Space Journal. 15:139-149

Friction stir welding (FSW) was used to join cast Ti–6Al–4V hemisphere and cylinder parts to produce a spacecraft propellant tank with reduced costs and lead time compared to conventional manufacturing. As a potential source for failure, the weld

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3928a07c5bdb8ffda01b55aee80d3428
https://doi.org/10.1007/s12567-021-00398-w

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Akademický článek

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Hybrid manufacturing of titanium Ti-6Al-4V combining laser metal deposition and cryogenic milling

Autor: Christoph Leyens, T. Ghidini, Mirko Riede, Frank Brückner, Jörg Bretschneider, Johannes Gumpinger, Thomas Rohr, Elena López, André Seidel, Thomas Finaske, Michael Schneeweiß, Michael Kopper, J. Moritz

Publikováno v: The International Journal of Advanced Manufacturing Technology. 107:2995-3009

Hybrid manufacturing, which, e.g., combines additive manufacturing with conventional machining processes, can be a way of overcoming limitations currently encountered in additive manufacturing. Cryogenic milling might be a viable option for hard-to-c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe616e114d261f0f43967b34f734b642
https://doi.org/10.1007/s00170-020-05212-1

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Microstructure characterisation of a friction stir welded hemi-cylinder structure using Ti-6Al-4V castings

Autor: David Adams, Andrew Norman, Dick Andrews, Richard B. Freeman, Thomas Rohr, Martina Meisnar, T. Ghidini, S. Dodds, Joe M. Bennett, Renato Bellarosa

Publikováno v: Materials Characterization. 147:286-294

Friction stir welding (FSW) was applied to manufacture a spacecraft propellant tank from cast Ti-6Al-4V with the aim to reduce costs and lead time compared to conventional manufacturing routes. These tanks are usually produced via forging and a combi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31f05ee7b11ea519e26f263b64586b0e
https://doi.org/10.1016/j.matchar.2018.11.019

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Fatigue properties and material characteristics of additively manufactured AlSi10Mg – Effect of the contour parameter on the microstructure, density, residual stress, roughness and mechanical properties

Autor: Johannes Gumpinger, T. Ghidini, Michael Gschweitl, Emilie Beevers, Ana D. Brandão, Christoph Seyfert, Thomas Rohr, Peter Hofbauer

Publikováno v: International Journal of Fatigue. 117:148-162

Additive Manufacturing (AM) is in general seen as a game changing technology. In particular for the space industry, it seems a promising tool for the constant strive towards increasing performance and reducing the cost of space missions. The layer-wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc0658a8c6058d6d9aacd00d00f3c11e
https://doi.org/10.1016/j.ijfatigue.2018.08.023

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