Results 121 to 130 of about 263 (152)
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Wear mechanisms of PVD-coated PCBN cutting tools
Wear, 2013Abstract The wear characteristics of PVD coated (TiN, TiSiN, TiAlN, and AlCrN) polycrystalline cubic boron nitride (PCBN) cutting tools were compared to those of uncoated PCBN during single point turning of case hardened steel 16MnCr5. Post-cutting observations of the worn inserts were performed using high resolution field emission gun scanning ...
R. M’Saoubi +2 more
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Experiments on High-Speed and Dry Cutting with PCBN Tool
Key Engineering Materials, 2010This paper deals with the High-speed Hard and Dry Cutting mechanism of hardened alloy-steel with PCBN tool: the cutting speed and workpieces temperature and tool wear are being discussed in different cutting speeds when cutting alloy-steel 42CrMo. After the workpiece temperature measured by ThermaVision, it is proved that the workpiece temperature was ...
Hai Dong Yang +3 more
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Performance of PCBN tools in dry cutting iron-based superalloy
International Journal of Refractory Metals and Hard MaterialsXianhua Tian
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Wear model in turning of hardened steel with PCBN tool
International Journal of Refractory Metals and Hard Materials, 2014Abstract In this study a mathematical–computational model of tool wear of PCBN (polycrystalline cubic boron nitride) was developed in turning of quenched and tempered AISI D6 steel (57 HRC) using experimental planning and statistic techniques. On the experimental trials many parameters are important such as: surface roughness, cutting force and tool ...
José C. Camargo +3 more
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Modeling of the Machining Process by PCBN Tool with Self-adaptive Coating
2021The paper discusses the analytical calculation’s results of the effect of the self-adaptive coating on such parameters of the contact interaction at the cutting zone as average contact temperature and cutting force during machining of hardened steel with PCBN. The calculation procedure was realized in the form of an iteration algorithm.
Andrey Manokhin +4 more
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Diffusion and oxidation wear of PCBN tool based on thermodynamics
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2010The rules of diffusion wear and oxidation wear for PCBN cutting tools were analyzed based on thermodynamics theory. Dissolution concentrations in typical normal workpice materials of PCBN tool material at different temperature were then calculated. Diffusion reaction rules in high temperature were developed and analyzed using the Gibbs free energy ...
Fang Shao, Zhanqiang Liu, Yi Wan
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Machining Abrasion-Resistant Hard-Facings with Pcbn Tools
2002Iron-based hard-facings are a popular choice for abrasion resistant materials in industries as diverse as mining and food processing. Alloys forming chromium carbides dispersed in a relatively soft matrix are particularly effective because these carbides are usually present as relatively large micro-constituents, which present large surface areas to ...
E. J. Brookes +3 more
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Reducing Fracture Tendencies in PCBN FSW Tools
2009Abstract : The overall goal of this program is to increase the life of PCBN tools in friction-stir welding of high temperature metals. This will be achieved through the following objectives: (1) Understand the fundamental causes for limited lifetimes of PCBN tools during Friction-Stir Welding (FSW) of high temperature metals, including both wear and ...
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Effects of Additives and CBN Grit Size on the Machinability of PCBN Tools
Materials Science Forum, 2006An investigation was reported on how to improve the machinability of PCBN tool for realizing the electric spark line cutting of PCBN tool. The machinability of the PCBN tool was evaluated in terms of its current conductivity. The influences of the additive compositions, additive concentrations and grit sizes of CBN on the current conductivity of PCBN ...
Zhi Lv, Ji Fu Feng, Feng Lin, Xi Peng Xu
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Optimizing PCBN cutting tool performance in hard turning
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2008Surface finish, in addition to tool wear, is an important aspect of PCBN tool performance in hard turning. A set of experiments that focused on the effects of corner radius, chamfer angle/width, and edge radius in addition to severity of interruption and speed/feed at constant depth of cut were performed.
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