Results 11 to 20 of about 13,468 (252)
Journal of Manufacturing Processes, 2021 The abrasive machining of superhard cutting tool materials such as polycrystalline cubic boron nitride is often conducted by grinding using diamond grinding wheels. Due to the high grinding wheel wear and the low material removal rates during grinding of
U. Müller +3 more
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Pulsed laser micro ablation of polycrystalline cubic boron nitride
Procedia CIRP, 2020 Polycrystalline cubic boron nitride (PcBN) is the second hardest material after diamond. Because of its unique properties, PcBN is extensively used as a cutting tool material for the machining of hardened steels. Pulsed laser ablation (PLA) offers the possibility to generate tailored microgeometries on PcBN tools and can thereby increase tool ...
Denkena, Berend +3 more
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Effect of nano-diamond on mechanical properties of polycrystalline cubic boron nitride
Fenmo yejin jishuPolycrystalline cubic boron nitride (PcBN) was sintered at the high temperature of 1500 ℃ under the pressure of 5.5 GPa, using cubic boron nitride (cBN) powders as the raw materials, Al powders and Si powders as the binders, and nano-diamond as the ...
ZHANG Qunfei +4 more
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Machining force comparison for surface defect hard turning and conventional hard turning of AISI 52100 steel [PDF]
INCAS Bulletin, 2021 In this article, a recently developed method called surface defect machining (SDM) for hard turning has been adopted and termed surface defect hard turning (SDHT). The main purpose of the present study was to explore the impact of cutting parameters like
P. UMAMAHESWARRAO +2 more
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Polycrystalline γ-boron: As hard as polycrystalline cubic boron nitride [PDF]
Scripta Materialia, 2012 The Vickers hardness of polycrystalline -B was measured using a diamond indentation method. The elastic properties of polycrystalline -B (B=213.9 GPa, G=227.2 GPa, and E=503.3 GPa) were determined using ultrasonic measurement at ambient condition.
Qin, Jiaqian +6 more
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Thermal shock resistance of polycrystalline cubic boron nitride [PDF]
Journal of the European Ceramic Society, 2012 Abstract The effect of thermal shock on the flexural strength has been investigated experimentally. It was found that the variation in flexural strength with quench temperature was influenced by the CBN grain size. Polycrystalline material containing small CBN grains showed a discontinuous drop in measured flexural strength above a material dependent
Carolan, Declan +2 more
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Application of TOPSIS for multi response optimization of Process Parameters in dry hard turning of AISI 52100 steel [PDF]
INCAS Bulletin, 2021 In the present work by employing the Technique for order of preference by similarity to ideal solution (TOPSIS) machining parameters optimization is performed with polycrystalline cubic boron nitride (PCBN) tools while AISI 52100 steel hard turning (HT).
P. UMAMAHESWARRAO +3 more
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Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2022 An effect of mechanical activation of graphite-like (hexagonal) boron nitride (hBN) on catalytic synthesis of nano- and micropowders of cubic boron nitride (cBN) under conditions of high pressures and temperatures is shown in the article.
V. T. Senyut
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MATEC Web of Conferences, 2018 Ti-6Al-4V components are the most widely used titanium alloy products not only in the aerospace industry, but also for bio-medical applications. The machine-ability of titanium alloys is impaired by their high temperature chemical reactivity, low thermal
Jia Yunhai, Zhu Lixin
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White layer changes in cBN tools when turning hardened steel [PDF]
Tehnika, 2015 The paper presents experimental results of investigations in turning of hard Machin able steels (60 - 62 HRC) with cutting tools made of cubic boron nitride (cBN) - based polycrystalline super hard material.
Andrej Manohin S. +4 more
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