首页> 美国卫生研究院文献>Nanomaterials >The Influence of Wire Electrical Discharge Machining Cutting Parameters on the Surface Roughness and Flexural Strength of ZrO2/TiN Ceramic Nanocomposites Obtained by Spark Plasma Sintering
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The Influence of Wire Electrical Discharge Machining Cutting Parameters on the Surface Roughness and Flexural Strength of ZrO2/TiN Ceramic Nanocomposites Obtained by Spark Plasma Sintering

机译:电气放电加工切削参数对火花等离子烧结获得的ZrO2 /锡陶瓷纳米复合材料表面粗糙度和弯曲强度的影响

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摘要

In this work, we characterized the mechanical and electrical properties of zirconia-based ceramic nanocomposites reinforced with 30 and 40 vol. % TiN and fabricated by spark plasma sintering. In addition to their improved mechanical performance, these compositions have sufficient electrical conductivity to allow wire electrical discharge machining (WEDM). The influence of WEDM variables on the roughness and the mechanical strength of samples was analyzed after each cut. The experimental results showed that the roughness of machined surfaces can be reduced by variations in WEDM manufacturing regimes, and, consequently, a drastic drop in flexural strength of workpieces can be avoided. Furthermore, the composites with higher content and homogeneous distribution of the conductive phase exhibited better surface quality as well.
机译:在这项工作中,我们的特征在于用30和40体积增强的基于氧化锆的陶瓷纳米复合材料的机械和电性能。由火花等离子体烧结制造%锡和制造。除了改进的机械性能之外,这些组合物还具有足够的导电性,以允许电线放电加工(WEDM)。每次切割后,分析了WEDM变量对粗糙度和样品机械强度的影响。实验结果表明,随着WEDM制造制度的变化,可以减小机加工表面的粗糙度,因此,可以避免工件的弯曲强度的激烈下降。此外,具有较高含量和导电相分布的复合材料也表现出更好的表面质量。

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