Results 21 to 30 of about 1,161 (209)

Effect of nano-diamond on mechanical properties of polycrystalline cubic boron nitride

Fenmo yejin jishu
Polycrystalline 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 additive.
ZHANG Qunfei, XIAO Changjiang, MA Jinming, TANG Lihui, LI Zhengxin   +4 more
openaire   +3 more sources

A combined experimental–numerical investigation of fracture of polycrystalline cubic boron nitride [PDF]

Engineering Fracture Mechanics, 2013
Abstract Numerical modelling of a series of experimental Single Edge V-Notched Beam tests was carried out for a number of grades of polycrystalline cubic boron nitride using the finite volume method (FV) and cohesive zone model approach. The effect of notch root radius observed experimentally was reproduced numerically via a unique CZM for each ...
Carolan, Declan, Ivankovic, Alojz, Murphy, Neal   +2 more
openaire   +5 more sources

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, D. RANGARAJU, K. N. S. SUMAN   +2 more
doaj   +1 more source

Development of a Mathematical Model of the Synthesis of a Polycrystalline Superhard Material Based on Cubic Boron Nitride from Wurzite Boron Nitride Modified with Aluminum

Механика машин, механизмов и материалов, 2022
A mathematical model is developed for the technological process of synthesis under conditions of high pressures P and temperatures T of a polycrystalline superhard material based on cubic boron nitride (cBN).
Vladimir T. Senyut, Alexander M. Parnitsky, Viktor I. Zhornik   +2 more
doaj   +1 more source

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, D. RANGARAJU, K. N. S. SUMAN, B. RAVISANKAR   +3 more
doaj   +1 more source

Polycrystalline cubic boron nitride material

, 2023
This disclosure relates to a polycrystalline cubic boron nitride, PCBN, material that includes a binder matrix material containing nitride compounds.
Zhang, Xiaoxue, Turkevych, Volodymyr, Ståhl, Jan-Eric, Can, Antionette, Petrusha, Igor, Stratiichuk, Denis, Lenrick, Filip, Bushlya, Volodymyr   +7 more
core   +2 more sources

Production of nano- and micropowders of cubic BN from mechanically activated graphite-like BN under high pressures and temperatures using aluminium as a phase convertion initiator

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
doaj   +1 more source

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, Ivankovic, Alojz, Murphy, Neal   +2 more
openaire   +3 more sources

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., Klimenko Sergej A., Kopejkina Marina Ju., Tarić Mirfad R., Tanović Ljubodrag M.   +4 more
doaj   +1 more source

Effect of White Layer Obtained by Hard Cutting on the Friction and Wear Performances of GCr15 Bearing Steel Surface [PDF]

Cailiao Baohu, 2022
In order to study the effect of the white layer obtained by hard cutting on the friction and wear performances of the specimen surface, the polycrystalline cubic boron nitride tool was used to cut the GCr15 bearing steel hardly. The hardness of the white
ZOU Pian, YU Ai - bing, WU Qi - liang, WANG Gui - lin, LI Ke - fan, WU Sen - kai
doaj   +1 more source