A microstructure-based finite element modelling of the surface defect formation in the cutting of SiCp/Al composites

Tao Wang, Xibin Wang, Liangchi Zhang*, Lijing Xie, Weixing Xu

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

7 Citations (Scopus)

Abstract

Understanding the cutting process of particle reinforced aluminum matrix composites is important for a more appropriate application of the composites. However, in the previous finite element modeling, the reinforcement particles, such as SiC, are generally treated as spheres. Such a simplification is inconsistent with the actual geometries of the particles whose shapes are mostly irregular. This paper established a microstructure-based finite element model with the aid of Abaqus/Explicit, imitating the real particle morphologies obtained from the micrographs of SiCp/Al composites. The defect formation mechanisms of the SiC fracture, the cavitation, the pit and the protuberance in machined surfaces of the composites were then investigated and verified by experiment. It was found that the microstructure-based model can more appropriately mimic the cutting of SiCp/Al composites.

Original languageEnglish
Publication statusPublished - 18 Oct 2015
Event8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015 - Kyoto, Japan
Duration: 18 Oct 201522 Oct 2015

Conference

Conference8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
Country/TerritoryJapan
CityKyoto
Period18/10/1522/10/15

Keywords

  • Finite element analysis
  • Machining
  • Microstructure-based modelling
  • SiCp/Al composites
  • Surface defect

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