Research on Residual Stress of Engineering Ceramic Grinding Surface

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As a kind of special hard and brittle engineering materials, in the grinding process, ceramic parts are prone to product cracks which affect seriously on the strength of the parts, and the residual stress is the main reason for cracks producting. Grinding parameters, grinding force and grinding temperature have a certain impact on the residual stress, and the residual stress effects on the fracture strength and fatigue strength of parts. ceramic grinding surface residual stress are caused by the combined effect, like plastic deformation, phase change, the microscopic plastic deformation of the material and the cold burnishing. The residual stress test several methods have X-ray diffraction method, perturbation degree method, indentation fracture. thermal elastic-plastic finite element method can be used to calculate grinding surface residual stress on ceramic and other hard and brittle materials.

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259-262

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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