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首页> 外文期刊>JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing >A Probabilistic Model for Crack Formation in Laser Cutting of Ceramics
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A Probabilistic Model for Crack Formation in Laser Cutting of Ceramics

机译：陶瓷激光切割裂纹形成的概率模型

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摘要

Ceramics are being increasingly used in industry due to their outstanding physical and chemical properties. But these materials are difficult to machine by traditional machining processes because they are hard and brittle. Recently, as one of the various alternative processes, laser-beam machining is widely used in the cutting of ceramics. Although the use of lasers presents a number of advantages over other methods, one of the problems associated with this process is the uncertain formation of cracks that result from the thermal stresses. This paper presents a Bayesian probabilistic modeling of crack formation over thin alumina plates during laser cutting. The proposed model can predict the critical cutting front angle which is directly related to the initiation of crack formation.
机译：陶瓷因其出色的物理和化学特性而在工业中得到越来越多的使用。但是，由于这些材料坚硬易碎，因此很难通过传统的加工方法进行加工。近年来，作为各种替代方法之一，激光束加工被广泛用于陶瓷的切割。尽管使用激光比其他方法具有许多优势，但是与该过程相关的问题之一是由热应力导致的裂纹的不确定形成。本文介绍了贝叶斯概率模型在激光切割过程中在薄氧化铝板上形成裂纹的可能性。所提出的模型可以预测与切削裂纹的形成直接相关的临界切削前角。

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