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Документ Simulation of effects of metal phase in a diamond grain and bonding type on temperature in diamond grinding(Springer-Verlag London, 2012) Mamalis, A. G.; Grabchenko, A. I.; Fedorovich, V. A.; Kundrak, J.Manufacturing diamond wheels on various bonds is a relatively high-cost process, requiring high labour and high consumption of expensive diamond grains but yielding relatively low productivity. With better knowledge of the various factors involved in the sintering process, the most efficient combinations can be found, leading to higher productivity. Currently, there are no scientifically based recommendations for the choice of the rational combinations of strength, brand of grain, graininess and concentration with the physical–mechanical properties of bonds. The aim of this research is the development of a technique for the theoretical definition of an optimal combination of strength properties of diamond grains and bond to provide maximum retention of diamond grain integrity during the process of diamond wheel manufacture. This is investigated using 3D simulations of the deflected mode of the sintering area of the wheel's diamond bearing layer.Документ 3D simulation of diamond grinding process by finite element method(НТУ "ХПИ", 2011) Mamalis, A. G.; Grabchenko, A. I.; Fedorovich, V. A.; Kundrak, J.; Babenko, A. E.Process of manufacture of diamond wheels on various bonds is characterized by high labour content and low productivity, high consumption of expensive diamond grains and, as consequence, the high cost price of a further operational process of diamond wheels. It is necessary to attain reliability and quality heightening at diamond-abrasive tool manufacture without which its effective application in production is impossible. Production of diamond - abrasive tool is founded on establishment of physical and technological regularities of sintering process of diamond-bearing layer. Now there are no scientifically based recommendations for choice of the rational combinations of strength, brand of grain, graininess, concentration with the physical-mechanical properties of bonds. The aim of given research is the development of the technique of the theoretical definition of an optimal combination of strength properties of diamond grains and bond at which ones retention of diamond grain integrity at the process of manufacture of diamond wheel is ensured by using 3D simulations of deflected mode of sintering area of its diamond-bearing layer.Документ Состояние вопроса и перспективы применения алмазов, полученных методом CVD(НТУ "ХПИ", 2011) Пыжов, Иван Николаевич; Васильев, А. В.; Клименко, В. Г.Рассмотрены некоторые вопросы, связанные с перспективой применения синтетических алмазных поликристаллов, полученных методом CVD. Установлено, что несмотря на малый удельный вес их использования в настоящее время, они имеют хорошие перспективы в будущем. Особый интерес представляет использование этих материалов для правки абразивных кругов.