Results 21 to 30 of about 135 (113)
Performance evaluation of PCBN, coated carbide and mixed ceramic inserts in finish-turning of AISI D2 steel [PDF]
The present study compares the performance of three different cutting tools, viz., PCBN, mixed ceramic and coated carbide tool in finish turning of hardened D2 tool steel in terms of tool wear, surface roughness, and economic feasibility under dry ...
M. Junaid Mir, M.F. Wani
doaj
Effect of binder content on microstructure and mechanical properties of PcBN composites [PDF]
In this study, polycrystalline cubic boron nitride (PcBN) composites were successfully prepared under ultrahigh pressure (5.5GPa) and high temperature (1500 °C) by using cBN as precursor and TiC, Ti and Al as binders.
Mo Peicheng +7 more
doaj +1 more source
Binderless Polycrystalline Cubic Boron Nitride Sintered Compacts for Machining of Cemented Carbides
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 +6 more
doaj +1 more source
Evaluation of machining performance of STAVAX with PCBN tools [PDF]
A study was undertaken to investigate the wear characteristics of polycrystalline cubic boron nitride (PCBN) cutting tools and surface integrity during machining of STAVAX (specialised stainless steel) with and without coolant. Plastic deformation and formation of overtempered martensite and white layer (untempered martensite) were the dominant ...
Liew, Willey Yun Hsien +2 more
openaire +2 more sources
Polycrystalline cubic boron nitride(PcBN) was prepared under a high temperature and an ultra-high pressure using an in situ synthesis method. The influence of sintering temperature on composition, micro-structure, relative density, porosity and ...
YU Wen-lin +4 more
doaj +1 more source
Failure and Control of PCBN Tools in the Process of Milling Hardened Steel
The polycrystalline cubic boron nitride (PCBN) milling tool can be used in the mold industry to replace cemented carbide tools to improve machining efficiency and quality. It is necessary to study the tool wear and failure mechanism to increase machining
Guangyue Wang +3 more
doaj +1 more source
Physico-chemical features of tool wear of PCBN
З використанням результатів дослідження модельної термоактивації і реальної термотрибоактивації контактних ділянок інструменту в зоні різання визначено ефекти фізико-хімічної взаємодії між основою надтвердого композиту, яким оснащений інструмент – нітридом бору, складовими оброблюваного матеріалу та киснем повітря.
openaire +3 more sources
PCBN Performance in High Speed Finishing Turning of Inconel 718
Inconel 718 is a Ni superalloy widely used in high responsibility components requiring excellent mechanical properties at high temperature and elevated corrosion resistance.
José Díaz-Álvarez +3 more
doaj +1 more source
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
Experimental Study on Wear Characteristics of PCBN Tool with Variable Chamfered Edge
Owing to heavy dynamic and thermal loads, PCBN tools are seriously worn during hard cutting, which largely constrains the improvement of their machining performance.
Tao Chen +3 more
doaj +1 more source

