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Vol.20, No.3, 2020, pp. 249–253 |
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EXTERNAL ATMOSPHERIC INFLUENCES ON THE MECHANICAL PROPERTIES OF RESIN-BONDED GRINDING WHEELS WITH ALUMINIUM OXIDE AND SILICON CARBIDE GRAINS Albin Matavž1, Jurij Krope2, Darko Goričanec2, Danijela Urbancl2, Aleksandar Sedmak3, Ivan Anžel4 1) MAMUT TIM, Ltd., Zreče, SLOVENIA
email: albin@mamut-tim.com 2) University of Maribor, Faculty of Chemistry and Chemical Engineering, Maribor, SLOVENIA 3) University of Belgrade, Faculty of Mechanical Engineering, Belgrade, SERBIA 4) University of Maribor, Faculty of Mechanical Engineering, Maribor, SLOVENIA
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Abstract Ageing effects on resin-bonded grinding wheel properties are presented, including aluminium oxide and silicon carbide influence. Furthermore, humidity is examined as the most likely cause of significant downgrade in mechanical properties. Toward this aim a new system of accelerated ageing of grinding wheels (additional humidification) is used under special atmospheric conditions. The mechanisms for microstructural changes during ageing are analysed, based on the microstructure exposure to thermo-mechanical impacts. Keywords: resin-bonded grinding wheels, mechanical properties, ageing, microstructure |
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full article (662 kB)
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