A Review of Polycrystalline Cubic Boron Nitride Cutting tool Developments and Application

Author(s):  
A. M. Abrão ◽  
D. K. Aspinwall ◽  
M. L. H. Wise
2014 ◽  
Vol 668-669 ◽  
pp. 56-59
Author(s):  
Yun Hai Jia ◽  
Cheng Zhe Guan

Electrical discharge grinding is part of the most widely used methods to machine polycrystalline cubic boron nitride cutting tool. Polycrystalline cubic boron nitride compact samples processed in domestic with different grain size are the research object. Electrode running speed, peak current, and pulse width are selected as the main process parameters. The material removal volume and electrode loss set as the evaluation index of productive efficiency; workpiece surface roughness value sets as an evaluation standard of processing quality. Through electrical discharge grinding experiments, combined with scanning electron microscopy observation, energy spectrum analyzer and roughness tester, the influences of the main process parameters on electrical discharge grinding are analyzed, polycrystalline cubic boron nitride compact electrical discharge grinding technics & mechanism are summarized.


2011 ◽  
Vol 120 ◽  
pp. 311-315 ◽  
Author(s):  
Yun Hai Jia

The samples of Polycrystalline cubic boron nitride (PcBN) cutting tool were machined by adjusting the main parameters of electrical discharge machining (EDM). After the machining, the phases were analyzed by X-ray diffraction analyzer and the surface layer microstructure was observed by scanning electronic microscope. The fundamental component of machined PcBN cutting tool affected layer was obtained and the reason of begetting affected layer was analyzed. The relationship curves between pulse width, working electric current and thickness of affected layer, blade surface roughness were summarized. The relationship between PcBN cutting tool’s life that was machined by EDM and cutting tool flank width, workpiece surface roughness were analyzed. The results showed that to adjust electrical discharge machining parameters, such as decreasing pulse width or machining electric currents, can reduce the thickness of affect layer, improve blade surface roughness and extend the service life of PcBN cutting tool. These researches provide valuable test reference for drawing up electrical discharge machining technics of PcBN cutting tool and forecasting cutting tool’s life.


2016 ◽  
Vol 3 (4) ◽  
pp. 045904 ◽  
Author(s):  
I González de Arrieta ◽  
T Echániz ◽  
R B Pérez-Sáez ◽  
M J Tello

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