Particle Removal Mechanism of High Volume Fraction SiCp/Al Composites by Single Diamond Grit Tool

Jinguang Du; Wuyi Ming; Yang Cao; Jun Ma; Wenbin He; Xiaoke Li

doi:10.1007/s11595-019-2055-5

Journal of Wuhan University of Technology Materials Science Edition ›› 2019, Vol. 34 ›› Issue (2) : 324 -331. DOI: 10.1007/s11595-019-2055-5

Advanced Materials

Particle Removal Mechanism of High Volume Fraction SiCp/Al Composites by Single Diamond Grit Tool

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Abstract

Particle removal mechanism was presented during machining particle SiC/Al composites with diamond grinding tool. The relevant removal modes and their mechanisms were discussed considering the impact and squeezing effect of diamond grit on the SiC particle. The experimental results show that the aluminum matrix has larger plastic deformation, so the aluminum mixed with the surplus SiC particles is cut from the surface. The SiC particles can be removed in multiple ways, such as broken/fractured, micro cracks, shearing and pulled out, etc. More particles removed by shearing, and less particles removed by fractured during material removal progress can produce a better machined surface.

Keywords

SiCp/Al composites / SiC particle / removal mechanism / grinding tool

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Jinguang Du, Wuyi Ming, Yang Cao, Jun Ma, Wenbin He, Xiaoke Li. Particle Removal Mechanism of High Volume Fraction SiCp/Al Composites by Single Diamond Grit Tool. Journal of Wuhan University of Technology Materials Science Edition, 2019, 34(2): 324-331 DOI:10.1007/s11595-019-2055-5

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