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对几种国产和进口的ＷＣ—Ｃｏ类硬质合金制造的拉深模具进行了断裂失效分析，结果表明，其失效的起因与材质及ＷＣ颗粒度和颗粒均匀性有密切联系。在其失效分析的基础上，对这类拉深模的选材提出了一些建议
Fracture failure analysis of several domestic and imported WC-Co cemented carbide drawn dies shows that the cause of failure is closely related to the material, WC particle size and particle homogeneity. On the basis of its failure analysis, some suggestions are put forward for the selection of such drawing dies