Results 1 to 10 of about 366 (156)

Binderless Polycrystalline Cubic Boron Nitride Sintered Compacts for Machining of Cemented Carbides

Ceramics
High-purity, superhard, binderless polycrystalline cubic boron nitride (BL-PCBN) was obtained by direct hBN to cBN transformation in a toroid-type high-pressure apparatus at a pressure of 8.0 GPa and temperature of 2250 °C (HPHT-DCS; high-pressure, high ...
Alexander S. Osipov, Piotr Klimczyk, Igor A. Petrusha, Yurii O. Melniichuk, Lucyna Jaworska, Kinga Momot, Yuliia Rumiantseva   +6 more
doaj   +4 more sources

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

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   +2 more sources

Thermal properties of polycrystalline cubic boron nitride sintered under high pressure condition [PDF]

Science of Sintering, 2018
The excellent thermal and chemical properties of cubic boron nitride (cBN) indicate that it is potential materials to prepare the thermal dissipate substrate applied in the electronic packaging.
Leng Chunwei, Hu Xiaojun, Xie Hongliang, Shen Chunhua   +3 more
doaj   +2 more sources

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

International Journal of Refractory Metals and Hard Materials, 2023
The extremely severe conditions at which cutting tools are exposed in hard machining operations require tool materials with outstanding mechanical properties. Excellent combinations of high hardness and fracture toughness are aimed to enhance wear and contact damage resistance; and thus, reliability of the tool.
Gordon Pozuelo, Sandra, García Marro, Fernando, Rodríguez Suárez, Teresa, Roa Rovira, Joan Josep, Jiménez Piqué, Emilio, Llanes Pitarch, Luis Miguel   +5 more
openaire   +3 more sources

Cutting parameter-tool material interaction on PcBN tool wear behaviour in ductile iron machining [PDF]

Scientific Reports
In response to the increasing requirements for the processing quality and precision of ductile iron parts under the trend of automotive lightweighting and emission reduction, this study systematically investigated the wear behavior and cutting parameter ...
Pengfei Wang, Xiaojing Li, Yongtao Jiu, Huiming Yin, Yingbo Zhang   +4 more
doaj   +2 more sources

Investigation on Cutting Performance of Micro-Textured Cutting Tools [PDF]

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   +2 more sources

Fabrication of polycrystalline cubic boron nitride composites under high pressure [PDF]

Processing and Application of Ceramics, 2023
The PCBN (polycrystalline cubic boron nitride) composites were synthesized by mixing cubic boron nitride micropowders with Ti and Al micropowders at a certain mass ratio under high temperature and ultra-high pressure conditions.
Mo Peicheng, Chen Jiarong, Chen Chao, Qin Haiqing, Lin Feng   +4 more
doaj   +1 more source

Machining force comparison for surface defect hard turning and conventional hard turning of AISI 52100 steel [PDF]

INCAS Bulletin, 2021
In this article, a recently developed method called surface defect machining (SDM) for hard turning has been adopted and termed surface defect hard turning (SDHT). The main purpose of the present study was to explore the impact of cutting parameters like
P. UMAMAHESWARRAO, D. RANGARAJU, K. N. S. SUMAN   +2 more
doaj   +1 more source

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

Journal 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, Hengzhong Fan, Yunfeng Su, Wensheng Li, Jicheng Li, Bing Yan, Junjie Song, Litian Hu, Yongsheng Zhang   +8 more
doaj   +1 more source

Polycrystalline Cubic Boron Nitride (PCBN) Tool Life and Wear in Turning of Amorphous-Crystalline Iron-Based Coatings [PDF]

Strojniški vestnik – Journal of Mechanical Engineering, 2011
The paper presents PCBN-Ciborit cutting tools life and wear test results. The effects of the machining regime when turning amorphous-crystalline Fe80B20 and Fe79Cr16B5 coating systems applied to conventional workpiece materials were assessed. It has been shown that the observed tool wear mechanisms are complex in their character and are dominated by
Bojanić, Pavao, Klimenko, Sergey, Puzovic, Radovan, Tanović, Ljubodrag   +3 more
openaire   +2 more sources