Results 41 to 50 of about 1,997 (188)

Superhard pcBN tool materials with Ti3SiC2 MAX-phase binder: Structure, properties, application [PDF]

Journal of Superhard Materials, 2017
Superhard cutting tool materials were sintered in cBN–(Ti3SiC2–TiC) system via high pressure–high temperature method. Sintering was performed under the pressure 8 GPa in the 1400–2400°C temperature range. The initial mixtures of three compositions were chosen with 90, 80 and 60 vol % cBN.
Kolabylina, T., Bushlya, V., Petrusha, I. A., Johansson, D., Ståhl, J. E., Turkevich, V.   +5 more
openaire   +2 more sources

Hard Turning of Sintered Cemented Carbide Parts: A Shop Floor Experience [PDF]

, 2009
Machining hardened steel has been a recurring issue in the literature when tools with defined geometry cutting edges are used. It is well known the use of cemented carbides to produce cutting tools.
Coppini, N.L., Diniz, A.E., Bonandi, M., De Souza, E.M., Baptista, E.A.   +4 more
core   +1 more source

Study on Surface Roughness of Gcr15 Machined by Micro-Texture PCBN Tools

Machines, 2018
This paper applies micro textures to the rake face of PCBN (Polycrystalline Cubic Boron Nitride) tools, including three types of micro textures that are microgroove textures vertical to the cutting edge, microgroove textures parallel to the cutting edge,
Chen Pan, Qinghua Li, Kaixing Hu, Yuxin Jiao, Yumei Song   +4 more
doaj   +1 more source

Quantitative APT analysis of Ti(C,N) [PDF]

, 2011
A specially produced Ti(C,N) standard material, with a known nominal composition, was investigated with laser assisted atom probe tomography. The occurrence of molecular ions and single/multiple events was found to be influenced by the laser pulse energy,
Andrén, Hans-Olof, Angseryd, Jenny, Gerstl, Stephan S A, Liu, Fang, Thuvander, Mattias   +4 more
core   +1 more source

Research on characteristics of tool wear in laser heating and ultrasonic vibration cutting of tungsten carbide

Advances in Mechanical Engineering, 2016
Ultra-precision machining of tungsten carbide (YG10) can be realized under the combined assistance of laser heating and two-dimensional ultrasonic vibration.
Feng Jiao, Ying Niu, Ming-jun Zhang, Chang-juan Zhang   +3 more
doaj   +1 more source

Wear characteristics of PCBN tools in ultra-precision machining of stainless steel at low cutting speeds [PDF]

, 2003
Polycrystalline cubic boron nitride (PCBN) cutting tools are widely used in the ultra-precision machining of stainless steel mould inserts for the injection moulding of optical lenses.
B.K.A. Ngoi, Liew, Willey Yun Hsien, Y.G. Lu   +2 more
core   +1 more source

Effect of Ti3AlC2 content on microstructure and properties of PcBN materials

Jin'gangshi yu moliao moju gongcheng
The monolithic PcBN composite tool materials were prepared at 5.5 GPa and 1450 ℃ with different contents of Ti3AlC2 as the binder phase. The effects of different mass fractions of Ti3AlC2 on the phase composition, microstructure, and mechanical ...
Jinming MA, Changjiang XIAO, Hongjun TAO, Qunfei ZHANG, Lihui TANG, Jianfeng CAO, Yuan LI, Shijie ZHOU, Yulin TANG, Yachao CHEN, Zhengxin LI   +10 more
doaj   +1 more source

Tool wear/life evaluation when finish turning Inconel 718 using PCBN tooling

Procedia CIRP, 2012
Abstract Following a brief review of related literature, the paper outlines experimental results following finish turning of Inconel 718 using low concentration PCBN inserts. Testing utilised a modified L36 Taguchi fractional factorial orthogonal array which evaluated the effects of tool insert shape/geometry (round, C-type), tool edge preparation ...
Khan, S.A., Soo, S.L., Aspinwall, D.K., Sage, C., Harden, P., Fleming, M., White, A., M'Saoubi, R.   +7 more
openaire   +1 more source

Hard turning of AISI D6 tool steel under dry, wet and cryogenic conditions: An economic investigation aimed at achieving a sustainable machining approach

Cleaner Engineering and Technology, 2020
The aim of this study was to encourage cleaner production processes by investigating the economic feasibility of using LN2 as a cutting fluid in the turning of quenched and tempered AISI D6 tool steel using solid PCBN inserts.
Matheus Emmanuel Pereira Fernandes, Anderson Clayton Alves de Melo, Adilson José de Oliveira, Carlos Chesman   +3 more
doaj   +1 more source

Social emotional skills (SES) among lecturers in relation students performance [PDF]

, 2018
Social emotional skills (SES) of a lecturer are considered to play a vital role towards student performance. Despite of the fact, when it comes to Technical Vocational Education and Training (TVET), very little research is found on the importance and ...
Dahri, Salma
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