Analytical modeling of surface roughness in precision grinding of particle reinforced metal matrix composites considering nanomechanical response of material

Zhenzhong Zhang, Peng Yao, Jun Wang, Chuanzhen Huang, Rui Cai, Hongtao Zhu

    Research output: Contribution to journalArticlepeer-review

    47 Citations (Scopus)
    171 Downloads (Pure)

    Abstract

    Grinding is usually applied for particle reinforced metal matrix composites (PRMMCs) to achieve high ground surface quality. However, the surface quality especially surface roughness is difficult to predict theoretically due to different mechanical properties of two or more phases inside the PRMMCs. In this study, an analytical model of the surface roughness of ground PRMMCs is developed based on an undeformed chip thickness model with Rayleigh probability distribution by considering the different removal mechanism of metal matrix and reinforcement particles in grinding. GT35, a typical kind of steel based metal matrix composite reinforced with TiC particles is investigated as an example. Nanoindentation experiments are employed for the investigation of nanomechanical properties and cracking behavior of GT35 and the nanoindentation results are integrated in the model. Single factor surface grinding experiments of GT35 are also carried out to understand the material removal mechanism of GT35 and validate this novel surface roughness prediction model. The predicted surface roughness from this model shows good agreement with the experimental results.
    Original languageEnglish
    Pages (from-to)243-253
    Number of pages11
    JournalInternational Journal of Mechanical Sciences
    Volume157-158
    Early online date23 Apr 2019
    DOIs
    Publication statusPublished - Jul 2019

    Bibliographical note

    NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Mechanical Sciences. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Mechanical Sciences, [157-158], (2019) DOI: 10.1016/j.ijmecsci.2019.04.047

    © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

    Keywords

    • Nanoindentation
    • Precision grinding
    • PRMMCs
    • Surface roughness

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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