Rooke, J. orcid.org/0000-0003-0720-7891, Bonnell, R. orcid.org/0009-0003-6531-5169, Pickford, E. orcid.org/0009-0008-5548-4723 et al. (2 more authors) (2025) Application of low frequency vibration to the turning of ultra-high molecular weight polyethylene. Advanced Manufacturing: Polymer & Composites Science, 11 (1). ISSN 2055-0340
Abstract
Medical implant manufacturing is a growing sector and therefore requires improved manufacturing practices. In the case of total hip arthroplasty, the most challenging component to meet the ISO standard (ISO 7206-2:2011) is the acetabular liner, often made from ultra-high molecular weight polyethylene (UHMWPE). UHMWPE machining is associated with several manufacturing challenges, including swarf control. This research used low frequency vibration (LFV), an intermittent cutting process and supercritical CO2 (scCO2) to aid chip segmentation and prevent swarf nesting. Machining trials have demonstrated a significant reduction in swarf nesting relative to a traditional process (91% reduction from LFV and 98% reduction when using LFV and scCO2). The surface roughness (Ra) also had an indirect improvement from using LFV (53% reduction on the inner hemisphere), leading to all parts meeting the roughness requirement of ISO 7206-2:2011. The results have demonstrated machinability benefits for UHMWPE, reducing the operator intervention required and component scrap rates.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent. |
Keywords: | Ultra-high molecular weight polyethylene; UHMWPE; low frequency vibration; swarf chipping |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > University of Sheffield Research Centres and Institutes > AMRC with Boeing (Sheffield) The University of Sheffield > Advanced Manufacturing Institute (Sheffield) > AMRC with Boeing (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jan 2025 11:03 |
Last Modified: | 17 Jan 2025 11:03 |
Status: | Published |
Publisher: | Informa UK Limited |
Refereed: | Yes |
Identification Number: | 10.1080/20550340.2025.2449631 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:221667 |