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Sub-surface sinking effect of reinforcement particle in laser assisted machining of metal matrix composites

Mypati, Omkar ; Liao, Zhirong ; Zan, Shusong ; M'Saoubi, Rachid LU and Axinte, Dragos (2025) In CIRP Annals 74(1). p.93-97
Abstract

Aluminium-based SiC particle-reinforced metal matrix composites are widely used in engineering applications due to their exceptional mechanical properties. However, their machining remains challenging due to the mismatch of material properties between the brittle SiC particles and the ductile aluminium matrix, causing tool wear and surface damage. To mitigate these issues, laser inverse problem scanning is utilised to strategically melt the top layer aluminium matrix, allowing the SiC particles to sink and promoting more ductile Al-matrix. The strategic hybrid laser milling approach optimises particle sinking, reduces tool wear and enhances surface integrity by minimising particle fracture, pullout and refining microstructure.

Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
laser, machining, Metal matrix composite, particle sinking, surface integrity
in
CIRP Annals
volume
74
issue
1
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:105003693256
ISSN
0007-8506
DOI
10.1016/j.cirp.2025.04.041
language
English
LU publication?
yes
id
1e8d6ce4-9f85-431c-bf98-a3762ba564ad
date added to LUP
2025-09-18 12:47:02
date last changed
2025-10-14 11:03:52
@article{1e8d6ce4-9f85-431c-bf98-a3762ba564ad,
  abstract     = {{<p>Aluminium-based SiC particle-reinforced metal matrix composites are widely used in engineering applications due to their exceptional mechanical properties. However, their machining remains challenging due to the mismatch of material properties between the brittle SiC particles and the ductile aluminium matrix, causing tool wear and surface damage. To mitigate these issues, laser inverse problem scanning is utilised to strategically melt the top layer aluminium matrix, allowing the SiC particles to sink and promoting more ductile Al-matrix. The strategic hybrid laser milling approach optimises particle sinking, reduces tool wear and enhances surface integrity by minimising particle fracture, pullout and refining microstructure.</p>}},
  author       = {{Mypati, Omkar and Liao, Zhirong and Zan, Shusong and M'Saoubi, Rachid and Axinte, Dragos}},
  issn         = {{0007-8506}},
  keywords     = {{laser; machining; Metal matrix composite; particle sinking; surface integrity}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{93--97}},
  publisher    = {{Elsevier}},
  series       = {{CIRP Annals}},
  title        = {{Sub-surface sinking effect of reinforcement particle in laser assisted machining of metal matrix composites}},
  url          = {{http://dx.doi.org/10.1016/j.cirp.2025.04.041}},
  doi          = {{10.1016/j.cirp.2025.04.041}},
  volume       = {{74}},
  year         = {{2025}},
}