Results 31 to 40 of about 135 (113)

Capillary gas chromatography of polychlorinated benzonitriles (PCBN)

Fresenius' Journal of Analytical Chemistry, 1997
Polychlorinated benzonitriles (PCBN) are products of combustion chemistry and can be emitted from municipal waste incinerators. Their possible relevance to environmental chemistry has not previously been described, with the exception of the herbicide 2,6-dichlorobenzonitrile.
Mittermaier, Bernhard, Ballschmiter, Karlheinz   +1 more
openaire   +3 more sources

Simulation and experimental study on the self-sharpening mechanism of polycrystalline cBN abrasive grit based on Voronoi diagram

Journal of Materials Research and Technology
Polycrystalline cBN (PcBN) abrasive grits have a unique microstructure that contributes to the self-sharpening ability of grinding wheels. However, their self-sharpening mechanism is still unknown, resulting in uncontrollable wear.
Yejun Zhu, Lin Wang, Zhaoqin Zhang, Maohua Xiao   +3 more
doaj   +1 more source

Investigation on surface morphology and crystalline phase deformation of Al80Li5Mg5Zn5Cu5 high-entropy alloy by ultra-precision cutting

Materials & Design, 2020
The materials with high precision，easy machining and excellent micro-machinability are considered significant on the fabrication of precision components, the outstanding comprehensive properties of Al80Li5Mg5Zn5Cu5 high-entropy alloy just meet these ...
Zhiyuan Huang, Yuqi Dai, Zhen Li, Guoqing Zhang, Chuntao Chang, Jiang Ma   +5 more
doaj   +1 more source

Study on Surface Roughness of Gcr15 Machined by Micro-Texture PCBN Tools

Machines, 2018
This paper applies micro textures to the rake face of PCBN (Polycrystalline Cubic Boron Nitride) tools, including three types of micro textures that are microgroove textures vertical to the cutting edge, microgroove textures parallel to the cutting edge,
Chen Pan, Qinghua Li, Kaixing Hu, Yuxin Jiao, Yumei Song   +4 more
doaj   +1 more source

Feasibility of orbital friction stir welding on clad pipes of API X65 steel and Inconel 625

Scientific Reports, 2023
Orbital friction stir welding (FSW) has been applied to clad pipes, which is certainly of interest to the oil and gas industry. In this context, an FSW system capable of performing sound joints in one pass with full tool penetration was developed ...
C. V. Amavisca, L. Bergmann, C. R. de L. Lessa, J. G. Schroeder, F. D. Ramos, G. V. B. Lemos, A. Reguly, B. Klusemann   +7 more
doaj   +1 more source

Effect of TiN-Al system binder ratio on structure and properties of PcBN

Jin'gangshi yu moliao moju gongcheng
ObjectivesAl and TiN are commonly used components in PcBN synthesis under high temperature and high pressure. But the existing literature studying the TiN-Al bonding system always focuses on the single property variation, such as relative density ...
Lihui TANG, Changjiang XIAO, Qunfei ZHANG, Haoyu ZHENG, Zhengxin LI   +4 more
doaj   +1 more source

Investigation on Cutting Performance of Micro-Textured Cutting Tools

Micromachines, 2019
This paper explores the influence of micro textures on cutting performance of polycrystalline cubic boron nitride (PCBN) tools from two aspects, that is, tool wear and machined surface roughness.
Qinghua Li, Chen Pan, Yuxin Jiao, Kaixing Hu   +3 more
doaj   +1 more source

Performance of the cutting tool equipped with PcBN of the BL group for high-speed processing of hardened steel

Технічна інженерія, 2023
The paper investigates PcBN cutting tools of the BL group developed at the Institute of Superhard Materials, made with the addition of ceramic components TaN, TiC, TiN. Such materials are classified as ceramic-matrix composites (CMC). The hardness of the
A.O. , Yu.O. , S.A. , A.S. , S.An., M.Yu. , O.S. , A.G. , L.G. , Y.P.   +9 more
doaj   +1 more source

Superhard pcBN materials with chromium compounds as a binder

Procedia Manufacturing, 2018
Superhard cBN-based materials with Cr3C2, Cr2N and CrB2 binders were sintered in a high-pressure high-temperature (HPHT) toroidal apparatus under a pressure of 7.7 GPa and in the temperature range of 1600-2450°С. Initial mixtures of three compositions were chosen with 60 vol.% of cBN, 35 vol.% of binder phase and 5 vol.% of Al.
Slipchenko, Kateryna, Turkevich, Vladimir, Petrusha, Igor, Bushlya, Volodymyr, Ståhl, Jan-Eric   +4 more
openaire   +2 more sources

The Cutting Edge Geometric Optimization of the PCBN Tool for the Machining of Cast Iron

Micromachines
The turning process is the main machining task in brake disc production, and the PCBN tool is the most suitable type of cutting tools in the machining of brake discs made of cast iron. The edge geometric optimization of the PCBN tool is the key factor to
Xian Wu, Zhiqin Su, Chao Zhang, Xuefeng Zhao, Hongfei Yao, Feng Jiang   +5 more
doaj   +1 more source