Transactions of Materials and Heat Treatment

Title：Experimental research on wear resistance of fine blanking shearing surface for 50 steel

Authors： Zhang Huanhuan Dong Jihong Li wei

Unit： Changchun Institute of Optics

KeyWords： fine blanking shearing surface wear resistance size effect

ClassificationCode：

year,vol(issue):pagenumber：2015,40(7):107-112

Abstract：

The quality of fine blanked parts affects its practical application directly, and wear resistance of the shearing surface is one of main important factors determining its quality. The abrasive wear tests of fine blanked parts and wire cutting parts were implemented under different experimental conditions, and influences of various parameters on wear loss were analyzed. Furthermore, the worn surface morphology was observed by a scanning electron microscope, and the wear mechanism was investigated. The results show that influences of load and abrasive size on wear loss are obvious, and the abrasive wear resistance of fine blanked parts is better than that of wire cutting parts under the same condition. Therefore, wire cutting parts has size effect, and fine blanked parts appears to be opposite. When the particle size is about the critical value, the wear mechanism of wire cutting parts changes from plough wrinkle into micro cutting, and that of fine blanked parts remains plough wrinkle.

Funds：

张缓缓（1988-），男，硕士，研究实习员

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