Results 21 to 30 of about 737 (179)

White layer changes in cBN tools when turning hardened steel [PDF]

open access: yesTehnika, 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
doaj   +1 more source

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

open access: yesCailiao 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

Influence of binder systems on sintering characteristics, microstructures, and mechanical properties of PcBN composites fabricated by SPS

open access: yesJournal of Advanced Ceramics, 2022
Cubic boron nitride (cBN) with high hardness, thermal conductivity, wear resistance, and chemical inertness has become the most promising abrasive and machining material.
Shuna Chen   +8 more
doaj   +1 more source

On the cutting force of micro-textured polycrystalline cubic boron nitride cutting tool for powder metallurgy materials

open access: yesAdvances in Mechanical Engineering, 2020
Micro-textured cutting tools were widely reported due to the improved cutting performance, for example, the reduction of cutting forces. However, the cutting performance is significantly dependent on the parameters of the micro-textures.
Haidong Yang   +8 more
doaj   +1 more source

The influence of microstructure on the fracture statistics of polycrystalline diamond and polycrystalline cubic boron nitride [PDF]

open access: yesCeramics International, 2014
Abstract Flexural strength data of a number of grades of polycrystalline diamond (PCD), and polycrystalline cubic boron nitride (PCBN) were analyzed using Weibull, normal and lognormal distributions. The role of microstructure in the failure mechanism of such materials was analyzed in terms of the chosen strength distributions.
D. McNamara   +4 more
openaire   +3 more sources

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

open access: yesScientific 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   +7 more
doaj   +1 more source

Estimation of technological and thermobaric features of hardened steels machining: description of phenomena in the contact zone by cutting with blade tools from PCNB group BL

open access: yesТехнічна інженерія, 2022
So far, the development of modern tribology in the mechanical assembly industry requires the search for new tool materials, consideration of technological capabilities of cutting tools and determine the optimal characteristics and process conditions with
Ya.P. , P.P. , V.A.
doaj   +1 more source

Tool Wear Inspection of Polycrystalline Cubic Boron Nitride Inserts [PDF]

open access: yes, 2018
In industry, highly frequent inspection of tooling used to machine safety critical components is common place. Worn or damaged tools produce undesirable surface finishes leading often to early failure of the part due to fatigue crack growth. In the development stages of polycrystalline boron nitride tools, the tool wear inspection technique is an off ...
Wickramarachchi, C.   +4 more
openaire   +2 more sources

The practice of using a cutting tool with PCNB group BL in the processing of hardened steels

open access: yesТехнічна інженерія, 2021
The industry is increasingly using the technological capabilities of metalworking using tools made of superhard materials, in particular polycrystalline cubic boron nitride (PCВN) group BL.
Ya.P. , P.P.
doaj   +1 more source

Bioinspired PcBN/hBN fibrous monolithic ceramic: High-temperature crack resistance responses and self-lubricating performances

open access: yesJournal of Advanced Ceramics, 2022
The high strength and toughness of natural materials are mainly determined by a combination of mechanisms operating at different length scales, which can be used as a strategy to reduce the intrinsic brittleness of ceramics. Inspired by the architectures
Shu-na Chen   +6 more
doaj   +1 more source

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