Results 31 to 40 of about 738 (181)

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

Journal 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, Hengzhong Fan, Yunfeng Su, Jicheng Li, Junjie Song, Litian Hu, Yongsheng Zhang   +6 more
doaj   +1 more source

Hard machining of agricultural machines parts

Research in Agricultural Engineering, 2013
For the renovation and/or improvement of the surface properties of machine elements, hard facing is often used. Hard structures obtained in layers or by heat treatment achieve a hardness of up to 68 hardness (HRC) or even more.
R. Drlička, J. Žarnovský, R. Mikuš, I. Kováč, M. Korenko   +4 more
doaj   +1 more source

Effects of rotational speed on the Al0.3CoCrCu0.3FeNi high-entropy alloy by friction stir welding

High Temperature Materials and Processes, 2020
Welding and relevant studies are indispensable to employ high-entropy alloys for practical applications. In this study, Al0.3CoCrCu0.3FeNi high-entropy alloy with single FCC phase was used to make “bead-on-plate” friction stir welds at different ...
Lin Po-Ting, Wu Chan-Sheng, Peng Chun-Hao, Tsai Che-Wei, Sato Yutaka S.   +4 more
doaj   +1 more source

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

, 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., McLeay, T.E., Ayvar-Soberanis, S., Leahy, W., Cross, E.J.   +4 more
openaire   +2 more sources

Experimental Investigation of Material Properties in FSW Dissimilar Aluminum-Steel Lap Joints

Metals, 2021
The friction stir lap welding of AA5083 H111 aluminum alloy and S355J2 grade DH36 structural steel was investigated. A polycrystalline cubic boron nitride with tungsten and rhenium additives tool was used.
Michelangelo Mortello, Matteo Pedemonte, Nicola Contuzzi, Giuseppe Casalino   +3 more
doaj   +1 more source

Peculiarities of finishing working elements of cutting tools made of polycrystalline cubic boron nitride of BL group

Технічна інженерія, 2022
The use of hardened steels and high-hardness alloys provides the necessary mechanical and operational properties of machine parts and mechanisms, as a result of which the demand for the use of such materials is constantly growing.
A.O. , Yu.O. , S.A., S.An.
doaj   +1 more source

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

Ceramics 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, D. Carolan, P. Alveen, N. Murphy, A. Ivanković   +4 more
openaire   +3 more sources

Microstructure and mechanical properties of friction stir welded 8 mm pipe SAF 2507 super duplex stainless steel

Journal of Materials Research and Technology, 2019
The microstructure and mechanical properties of 8-mm-thick friction stir welded SAF 2507 super duplex stainless steel pipe was examined. High-quality welds were successfully produced using polycrystalline cubic boron nitride (PCBN) tool, force control ...
Rafael Arthur Reghine Giorjão, Victor Ferrinho Pereira, Maysa Terada, Eduardo Bertoni da Fonseca, Ricardo Reppold Marinho, Diego Martins Garcia, André Paulo Tschiptschin   +6 more
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Influence of sintering temperature on structure and mechanical properties of polycrystalline cubic boron nitride composites [PDF]

Processing and Application of Ceramics
Polycrystalline cubic boron nitride (PcBN) cutting tool materials were prepared by mixing cBN (85 wt.%) and TiN-Ti-Co (15 wt.%) micropowders under high temperature and ultra-high pressure.
Mo Peicheng, Chen Jiarong, Pan Xiaoyi, Zhang Jun, Li Kai, Chen Chao   +5 more
doaj   +1 more source

Application of the finite element method to search for ways to optimize the temperature field when cutting with tools from the ВL group PCNB

Технічна інженерія, 2022
The intensification of the machine-building industry today is connected with the development of the latest methods of researching the processes of manufacturing machine parts and with the improvement of high-speed cutting processes.
Ya.Р. , I.A., P.Р.
doaj   +1 more source