#5392. A normal force model for ultrasonic vibration-assisted inner-diameter slicing of hard and brittle materials

August 2026publication date
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Journal’s subject area:
Management Science and Operations Research;
Strategy and Management;
Industrial and Manufacturing Engineering;
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Abstract:
Ultrasonic vibration-assisted inner-diameter (ID) sawing (UVAIDS) has been proved as an effective slicing process for mono-crystalline silicon in improving the surface quality of wafers. The sawing force is regarded as one of the most critical refers to evaluate the sawing performance. Modeling sawing force is significantly helpful to understand the influence of sawing variables on the sawing process. Currently, there is no publication on the sawing force model for the UVAIDS of hard and brittle materials. This investigation presents a mechanistic model for the normal force in the one-dimensional ultrasonic vibration-assisted ID sawing hard and brittle materials. Based on brittle fracture mode in material removal mechanism, the sawing force model is developed beginning from the analysis of a single diamond abrasive grain. A series of experiments on sawing mono-crystalline silicon are performed to verify this model.
Keywords:
Hard and brittle material; Inner-diameter sawing; Mechanistic model; Normal force; One-dimensional ultrasonic vibration

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