期刊
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING
卷 46, 期 4, 页码 1591-1597出版社
JAPAN SOC MECHANICAL ENGINEERS
DOI: 10.1299/jsmec.46.1591
关键词
laser cutting; crack formation; Bayesian probabilistic model; alumina
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.
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