Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite
Metal matrix composites (MMCs) offer unique advantageous mechanical properties by strengthening a ductile metal matrix with a ceramic reinforcement (e.g., Ti6Al-4 V/SiCf). However, their heterogeneous composition poses machining challenges including fibre pullout, matrix cracking, and increased tool...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127523009681 |
| _version_ | 1797347832888295424 |
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| author | Omkar Mypati Jeriel Panzer Jose A. Robles-Linares Shusong Zan Zhirong Liao Dragos Axinte |
| author_facet | Omkar Mypati Jeriel Panzer Jose A. Robles-Linares Shusong Zan Zhirong Liao Dragos Axinte |
| author_sort | Omkar Mypati |
| collection | DOAJ |
| description | Metal matrix composites (MMCs) offer unique advantageous mechanical properties by strengthening a ductile metal matrix with a ceramic reinforcement (e.g., Ti6Al-4 V/SiCf). However, their heterogeneous composition poses machining challenges including fibre pullout, matrix cracking, and increased tool wear. Whilst pre-heating via laser-assisted machining (LAM) shows promise for improving machinability, traditional LAM implementations with a fixed laser spot size and straight laser path prevent uniform heating. By introducing spatially and temporally controlled LAM that generates homogeneous heating by varying the laser scanning velocity, a technique called fully inverse LAM can be applied for MMCs. This involves calculating separate temperature fields for the matrix and reinforcement to minimise thermal mismatch stresses. The fully inverse LAM decreases subsurface cracks and delamination resulting from conventional milling, whilst localised matrix softening reduces cutting forces by over 62 %. Flank tool wear is also diminished, increasing tool life by 120 %. Material analysis reveals reduced machined surface damage, lower surface roughness, and less formation of intermetallic compounds (Ti2C) compared to traditional LAM. |
| first_indexed | 2024-03-08T11:54:38Z |
| format | Article |
| id | doaj.art-a18ce3170f3e4530b03ae6e0f4abe894 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-03-08T11:54:38Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-a18ce3170f3e4530b03ae6e0f4abe8942024-01-24T05:16:18ZengElsevierMaterials & Design0264-12752024-01-01237112552Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix compositeOmkar Mypati0Jeriel Panzer1Jose A. Robles-Linares2Shusong Zan3Zhirong Liao4Dragos Axinte5Machining and Condition Monitoring Group, Faculty of Engineering, University of Nottingham, NG8 1BB, United KingdomMachining and Condition Monitoring Group, Faculty of Engineering, University of Nottingham, NG8 1BB, United KingdomMachining and Condition Monitoring Group, Faculty of Engineering, University of Nottingham, NG8 1BB, United KingdomMachining and Condition Monitoring Group, Faculty of Engineering, University of Nottingham, NG8 1BB, United KingdomCorresponding author.; Machining and Condition Monitoring Group, Faculty of Engineering, University of Nottingham, NG8 1BB, United KingdomMachining and Condition Monitoring Group, Faculty of Engineering, University of Nottingham, NG8 1BB, United KingdomMetal matrix composites (MMCs) offer unique advantageous mechanical properties by strengthening a ductile metal matrix with a ceramic reinforcement (e.g., Ti6Al-4 V/SiCf). However, their heterogeneous composition poses machining challenges including fibre pullout, matrix cracking, and increased tool wear. Whilst pre-heating via laser-assisted machining (LAM) shows promise for improving machinability, traditional LAM implementations with a fixed laser spot size and straight laser path prevent uniform heating. By introducing spatially and temporally controlled LAM that generates homogeneous heating by varying the laser scanning velocity, a technique called fully inverse LAM can be applied for MMCs. This involves calculating separate temperature fields for the matrix and reinforcement to minimise thermal mismatch stresses. The fully inverse LAM decreases subsurface cracks and delamination resulting from conventional milling, whilst localised matrix softening reduces cutting forces by over 62 %. Flank tool wear is also diminished, increasing tool life by 120 %. Material analysis reveals reduced machined surface damage, lower surface roughness, and less formation of intermetallic compounds (Ti2C) compared to traditional LAM.http://www.sciencedirect.com/science/article/pii/S0264127523009681Laser-assisted machiningMetal matrix composites (MMCs)Ti6Al4VSiC fibreTool wearSurface integrity |
| spellingShingle | Omkar Mypati Jeriel Panzer Jose A. Robles-Linares Shusong Zan Zhirong Liao Dragos Axinte Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite Materials & Design Laser-assisted machining Metal matrix composites (MMCs) Ti6Al4V SiC fibre Tool wear Surface integrity |
| title | Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite |
| title_full | Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite |
| title_fullStr | Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite |
| title_full_unstemmed | Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite |
| title_short | Modelling and experimental study of laser-assisted milling of fibre reinforced SiC/Ti-6Al-4V metal matrix composite |
| title_sort | modelling and experimental study of laser assisted milling of fibre reinforced sic ti 6al 4v metal matrix composite |
| topic | Laser-assisted machining Metal matrix composites (MMCs) Ti6Al4V SiC fibre Tool wear Surface integrity |
| url | http://www.sciencedirect.com/science/article/pii/S0264127523009681 |
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