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Milling-Related Brittle Fracture Mechanisms of a SiCp/Al Composite

  • H. J. Zhang
  • , J. G. Li*
  • , J. G. Du
  • *Corresponding author for this work
  • School of Mechatronics Engineering, Harbin Institute of Technology
  • Lingnan Normal University
  • Zhengzhou University of Light Industry

Research output: Contribution to journalArticlepeer-review

Abstract

SiCp/Al composites were machined with carbide cutting tools, the surface morphology of the materials was examined with SEM and EDXS. The SiCp removal in the aluminum matrix was studied on the basis of the brittle fracture theory. The fracture and shear removal mechanisms of SiCp were demonstrated, the conditions of SiCp brittleness-ductility removal were revealed. The SiCp/Al milling was investigated in SiCp fracture. The mathematical model of the SiCp/Al fracture force was constructed on the basis of reasonable assumptions, consideration of the contact between the hard phase of the milling tool and the workpiece material. Research on the SiCp/Al brittle fracture mechanism laid the foundation for improving the milled surface quality of a SiCp/Al composite.

Original languageEnglish
Pages (from-to)81-89
Number of pages9
JournalStrength of Materials
Volume52
Issue number1
DOIs
StatePublished - 1 Jan 2020
Externally publishedYes

Keywords

  • SiCp/Al
  • brittle fracture
  • carbide
  • milling

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