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A Combined Numerical-analytical Methodology for Surface Profile Prediction of Abrasive Slurry Jet Micro-machined Holes

机译:磨料浆料喷射微加工孔表面轮廓预测的组合数值分析方法

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In low-pressure abrasive slurry jet machining (ASJM), a slurry jet of fine abrasive particles is used to erode micro-sized features such as holes and channels in a variety of brittle and ductile materials. The present work extended the capability of an existing surface evolution model, previously developed for abrasive air jet machining, by using a CFD model to account for the effects of flow field on particle trajectories and to predict the profile of micro-holes machined in borosilicate glass. The results illustrated that the modified surface evolution model could precisely estimated the nonlinearity trend of depth as a function of machining time and accurately predicted the micro-holes profile with a maximum error of 5% up to a depth of 300 μm.
机译:在低压磨料浆料喷射机加工(ASJM)中,浆料的细磨料颗粒的浆料射流用于侵蚀各种脆性和延展性材料中的微尺寸特征,例如孔和通道。目前的工作延长了现有的表面演进模型的能力,以前为磨料空气喷射机械加工开发,通过使用CFD模型来解释流场对粒子轨迹的影响,并预测硼硅酸盐玻璃中加工的微孔轮廓。结果表明,改进的表面演化模型可以精确地估计深度的非线性趋势作为加工时间的函数,并准确地预测微孔轮廓,最大误差为5%,最大误差为300μm。

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