Electrical Discharge Dressing (EDD) of Metal Bonded Diamond Arc Grinding Wheels

Article Preview

Abstract:

Metal bonded diamond grinding wheels are very important for precision grinding operations of hard and brittle materials especially like ceramics or cemented carbides. But the trueing and dressing problem has affected its wide use. In this paper, a new EDD (Electrical discharge dressing) device was developed for the dressing of metal bonded diamond arc grinding wheels. The EDD experiments were carried out with the new dressing device. The influence of dressing parameters on the dressing efficiency and precision was studied. Experimental results shown that the increase of pulse period and duty period helped improve the dressing efficiency in a certain range. The higher electrical parameters could get better dressing efficiency. The detection results revealed that the error of the arc profile after EDD could reach to around 3μm. mazhaokai2014

You might also be interested in these eBooks

Info:

Periodical:

Pages:

412-417

Citation:

Online since:

January 2016

Export:

Price:

* - Corresponding Author

[1] Kim J D, Lee Y J, Mirror surface grinding for brittle materials with in-process electrolytic dressing, Journal of materials engineering and performance. 3 (1994) 159-167.

DOI: 10.1007/bf02654512

Google Scholar

[2] B. Linke, F. Klocke, Temperatures and wear mechanisms in dressing of vitrified bonded grinding wheels, International Journal of Machine Tools & Manufacture, 50 (2010) 552–558.

DOI: 10.1016/j.ijmachtools.2010.03.002

Google Scholar

[3] V. Fascio, R. W¨ uthrich, H. Bleuler, Spark assisted chemical engraving in the light of electrochemistry, Electrochimica Acta 49 (2004) 3997–4003.

DOI: 10.1016/j.electacta.2003.12.062

Google Scholar

[4] T.K.K.R. Mediliyegedara, A.K.M. De Silva, D.K. Harrison, J.A. McGeough, New developments in the process control of the hybrid electrochemical discharge machining (ECDM) process. Journal of Materials Processing Technology, 167(2005) 338-343.

DOI: 10.1016/j.jmatprotec.2005.05.043

Google Scholar

[5] A. Klink, Wire electro discharge trueing and dressing of fine grinding wheels, CIRP Annals-Manufacturing Technology. 59 (2010) 235-238.

DOI: 10.1016/j.cirp.2010.03.076

Google Scholar

[6] Chenjun Wei, Dejin Hu, Kaizhou Xu, Jun Li, Electrochemical discharge dressing of metal bond micro-grinding tools, International Journal of Machine & Manufacture. 51 (2001) 165-168.

DOI: 10.1016/j.ijmachtools.2010.10.008

Google Scholar

[7] Eduardo Weingartner, Raoul Roth, Friedrich Kuster, Marco Boccadoro, Frank Fiebelkorn, Electrical discharge dressing and its influence on metal bonded diamond wheels, CIRP Annals-Manufacturing Technology. 61 (2012) 183-186.

DOI: 10.1016/j.cirp.2012.03.049

Google Scholar

[8] Konrad Weingartner, Eduardo Weingartner, Marc Blaster, In-process wire electrical discharge dressing(IWEDD) of metal bonded diamond wheels, CIRP Annals-Manufacturing Technology. 62 (2013) 339-342.

DOI: 10.1016/j.cirp.2013.03.072

Google Scholar