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http://hdl.handle.net/10773/33015
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DC Field | Value | Language |
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dc.contributor.author | Lopes, Francisco | pt_PT |
dc.contributor.author | Horovistiz, Ana | pt_PT |
dc.contributor.author | Completo, António | pt_PT |
dc.contributor.author | Davim, J. Paulo | pt_PT |
dc.date.accessioned | 2022-01-25T18:16:59Z | - |
dc.date.available | 2022-01-25T18:16:59Z | - |
dc.date.issued | 2018-07 | - |
dc.identifier.uri | http://hdl.handle.net/10773/33015 | - |
dc.description.abstract | The complex surface geometry in tibial insert of the knee prosthesis, developed by High-speed machining, demands strict surface topography quality requirements, mainly to prevent osteolysis [1]. The fractal analysis is an effective tool in monitoring the milling of these components, since it is a technique sensitive to the self-affinity characteristics of these surfaces [2]. The objective of this work was to propose a method based on the fractal approach for the inspection of surface topography of the tibial insert manufactured by High-speed machining. Test pieces of tibial insert were prepared by varying the machining strategy. The material used was a UHMWPE. The evolution of fractal values were correlated to cutting tool trajectories and compared to average roughness, Ra. Extended depth-of-field method allowed the ordering of stacks of images obtained from optical microscopy, to quantitative investigation of behavior of surfaces. A method to establish the threshold between different scales for multi-fractal behavior of the machining surfaces was proposed, allowing comparing mono-fractal behavior with mixed fractal. The fractal analysis machined surfaces of the tibial insert can be successfully conducted from elevation maps resulting by combining conventional optical microscopy and 3-D reconstruction by extended depth-of-field. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.relation | POCI-01-0145-FEDER-031556 | pt_PT |
dc.rights | openAccess | pt_PT |
dc.title | Morphological characterization of surfaces manufactured by High-speed machining: fractal approach of surface topography of tibial insert in UHMWPE | pt_PT |
dc.type | conferenceObject | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | no | pt_PT |
ua.event.date | 16-18 July, 2018 | pt_PT |
degois.publication.title | International Conference on Nanomaterials Science and Mechanical Engineering | pt_PT |
Appears in Collections: | DEM - Comunicações TEMA - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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IMG_20220110_102815-convertido-compactado.pdf | 458.6 kB | Adobe PDF | View/Open |
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