Results 111 to 120 of about 13,468 (252)

Елементні показники процесу точіння загартованої сталі пластинами із ПКНБ [PDF]

, 2016
Розроблена спрощена методика визначення елементних показників (напружень та коефіцієнтів тертя) на передній та задній поверхнях леза, наведено приклад їх розрахунку для процесу точіння полікристалічним кубічним нітридом бора (ПКНБ) загартованої сталі.A ...
Кравченко, Ю. Г., Крюкова, Н. В.   +1 more
core  

Failure and Control of PCBN Tools in the Process of Milling Hardened Steel

Metals, 2019
The polycrystalline cubic boron nitride (PCBN) milling tool can be used in the mold industry to replace cemented carbide tools to improve machining efficiency and quality. It is necessary to study the tool wear and failure mechanism to increase machining
Guangyue Wang, Xianliang Zhou, Xuefeng Wu, Jing Ma   +3 more
doaj   +1 more source

Controlled Synthesis of Organic/Inorganic van der Waals Solid for Tunable Light-matter Interactions

, 2015
Van der Waals (vdW) solids, as a new type of artificial materials that consist of alternating layers bonded by weak interactions, have shed light on fascinating optoelectronic device concepts.
Chang, Tay Rong, Cong, Chunxiao, Fu, Qundong, Fu, Wei, He, Haiyong, Jeng, Horng Tay, Jin, Chuanhong, Lin, Hsin, Liu, Xinfeng, Liu, Zheng, Najmaei, Sina, Niu, Lin, Sum, Tze Chien, Tay, Beng Kang, Wang, Hong, Wang, Xingli, Wu, Chunyang, Wu, Di, Yakobson, Boris I., Yu, Peng, Yu, Ting, Zeng, Qingsheng, Zhang, Zhuhua, Zhou, Jiadong, Zhou, Wu   +24 more
core   +1 more source

Spherical indentation of polycrystalline cubic boron nitride (PcBN): Contact damage evolution with increasing load and microstructural effects

International Journal of Refractory Metals and Hard Materials, 2023
S. Gordon, F. García-Marro, T. Rodríguez-Suárez, J. Roa, E. Jiménez-Piqué, L. Llanes   +5 more
semanticscholar   +1 more source

Fracture behavior and self-sharpening mechanisms of polycrystalline cubic boron nitride in grinding based on cohesive element method

, 2019
Unlike monocrystalline cubic boron nitride (CBN), polycrystalline CBN (PCBN) shows not only higher fracture resistance induced by tool-workpiece interaction but also better self-sharpening capability; therefore, efforts have been devoted to the study of ...
Xin Huang, Haonan Li, Zhiwen Rao, W. Ding   +3 more
semanticscholar   +1 more source

Novel silicon crystals and method for their preparation [PDF]

Plate shaped silicon crystals and their preparation by pouring a silicon melt into a suitable mold and then allowing it to solidify in a temperature gradient were investigated. The production of energy by direct conversion of solar energy into electrical
Authier, B.
core   +1 more source

Exceptionally strong phonon scattering by B substitution in cubic SiC

, 2017
We use ab-initio calculations to predict the thermal conductivity of cubic SiC with different types of defects. An excellent quantitative agreement with previous experimental measurements is found.
Carrete, Jesús, Dongre, Bonny, Katre, Ankita, Madsen, Georg K. H., Mingo, Natalio   +4 more
core   +1 more source

Silicon crystals: Process for manufacturing wafer-like silicon crystals with a columnar structure [PDF]

Wafer-like crystals suitable for making solar cells are formed by pouring molten Si containing suitable dopants into a mold of the desired shape and allowing it to solidify in a temperature gradient, whereby the large surface of the melt in contact with ...
Authier, B.
core   +1 more source

The Influence of PCBN Inserts Microgeometry on Cutting Forces, Surface Roughness, and Tool Wear When Milling Inconel 718

Advances in Mechanical and Materials Engineering
This study investigates the effect of cutting edge microgeometry on the milling of Inconel 718, a superalloy widely used in aircraft engine components. Face milling tests were conducted using a Ø63 mm tool with unevenly distributed polycrystalline cubic ...
Marcin Szpunar, Marek Zwolak, Robert Ostrowski   +2 more
doaj   +1 more source

Finish machining of hardened steel by face milling using uncoated and TiSiN and TiAlN coated PCBN tools

Технічна інженерія
The article presents the results of experimental studies on the influence of various cutting regimes on the surface roughness of high-hardness hardened steel obtained after face milling with polycrystalline cubic boron nitride (PCBN) tools, both uncoated
Ya.Р. Kovalenko, P.Р. Melnychuk
doaj   +1 more source