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An Abrasive Waterjet Model for Cutting Ceramics

机译：切割陶瓷的磨料水射流模型

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Advanced engineering ceramic materials such as silicon carbides and silicon nitride have been used in many engineering applications. Cutting of such materials with abrasive waterjet is becoming the most recent cutting technique for its inherent advantages. In the present study, an elastic-plastic erosion model was adopted to develop an abrasive waterjet model for cutting brittle materials. As a result, a cutting model based on fracture mechanics was derived and introduced. The suggested model predicts the maximum depth of cut of the target material as a function of the fracture toughness and hardness, as well as process parameters. The maximum depth of cut predicted by the suggested model was compared with published experimental results for three types of ceramics. The effect of process parameters on the maximum depth of cut for a given ceramic material is also studied and compared with experimental work. The comparison reveals that there is a good agreement between the model predictions and experimental results, where the difference between the predicted and experimental values of the maximum depth of cut was found to take an average value of 10%.
机译：先进的工程陶瓷材料（例如碳化硅和氮化硅）已用于许多工程应用中。由于其固有的优势，用磨料射流切割这种材料正成为最新的切割技术。在本研究中，采用了弹塑性侵蚀模型来开发用于切割脆性材料的磨料水射流模型。结果，得出并引入了基于断裂力学的切削模型。建议的模型预测目标材料的最大切割深度是断裂韧性和硬度以及工艺参数的函数。通过建议的模型预测的最大切割深度与三种类型陶瓷的已发布实验结果进行了比较。还研究了工艺参数对给定陶瓷材料最大切割深度的影响，并与实验工作进行了比较。比较表明，模型预测与实验结果之间有很好的一致性，其中最大切削深度的预测值与实验值之间的差异为平均值的10％。

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