Experimental Study on WEDM Machining of PCD and PCBN Compacts

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Abstract:

Some typical kinds of PCD and PCBN compacts are selected to be machined by WEDM, and a series of processing tests are taken. After machining, the surface roughness of cutting section, the processing quality of cobalt-rich interface layer and the edge of superhard material layer are measured by surface profiler and 3D microscope. The results show that processing quality is affected by superhard particle size and concentration greatly, and better processing quality can be obtained after several cutting of WEDM. The minimum sharpening allowance of PCD cutting tools can be controlled within 4~15μm after WEDM, and within 10μm for PCBN BNX20, while BZN6000 needs larger follow-up workload of sharpening.

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Key Engineering Materials (Volumes 645-646)

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52-57

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May 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] G. F. Zhang, Z. H. Deng. Cutting mechanism and surface appearance of PDC with WEDM. China Mech. Eng. ,18(6)(2007) 671-675(in Chinese).

Google Scholar

[2] J. Wang. The way to improve super-hard cutting tool material wire-cutting processing efficiency. Electromach. Mould,(4)(2004) 59-60(in Chinese).

Google Scholar

[3] K. Suzuki, Y. Shiraishi, N. Nakajima, et al. Development of new PCD made up of boron doped diamond particles and its machinability by EDM. Adv. Mater. Res. , (76-78) (2009) 684-689.

DOI: 10.4028/www.scientific.net/amr.76-78.684

Google Scholar

[4] R. H. Olsen, R. C. Dewes, D. K. Aspinwall. Machining of electrically conductive CVD diamond tool blanks using EDM. J. Mater. Process. Technol. , (149)(2004) 627-632.

DOI: 10.1016/j.jmatprotec.2003.11.052

Google Scholar

[5] P. Tso, Y. Liu. Study on PCD machining. Int. J. Mach. Tools Manuf., (42)(2002) 331-334.

Google Scholar

[6] Y. Jia, B. S. Kim, D. J. Hu, J. Ni. Parametric study on near-dry wire electrodischarge machining of polycrystalline diamond-coated tungsten carbide material. J. Eng. Manuf. ,224(2009) 185-194.

DOI: 10.1243/09544054jem1602

Google Scholar