Surface properties of SiCp/Al composite by powder-mixed EDM

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This paper uses a kind of moderate volume fraction (40%) of SiC particle reinforced Al matrix composites (SiCp/Al) to research how the surface properties are affected in conventional EDM (EDM) and powder-mixed EDM (PMEDM). By means of environment scanning electron microscope (ESEM) and HIT friction and wear tester, surface micro-topography, elements and wear resistance were analyzed. Experiments and researches indicate that compared with EDM, the surface properties machined by using PMEDM are improved greatly. The PMEDM surface roughness decreases about 31.5%; corrosion resistance is better too; and wear resistance is twice of EDM. Powder-mixed EDM has promising applications in metal matrix composites machining field. © 2013 The Authors.

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Hu, F. Q., Cao, F. Y., Song, B. Y., Hou, P. J., Zhang, Y., Chen, K., & Wei, J. Q. (2013). Surface properties of SiCp/Al composite by powder-mixed EDM. In Procedia CIRP (Vol. 6, pp. 101–106). Elsevier B.V.

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