A New Complex Grinding Method for Ceramic Materials Combined with Ultrasonic Vibration and Electrodischarge Machining

Abstract:

A new complex grinding method named Ultrasonic Electrodischarging Grinding Method (US-ED-G in short) is described. In the US-ED-G, ultrasonic grinding and ED grinding are simultaneously carried out on an electrically conductive workpiece with a metal bond grinding wheel. When compared with other complex grinding methods, the US-ED-G is remarkably effective in reducing grinding force a great deal and maintaining grinding ability of a wheel for a long time in efficient grinding of extremely hard-to-grind ceramic materials like TiB2. A stock removal rate of 200mm3/min and a grinding ratio of 110 have been attained by selecting appropriate conditions in US-ED-G of TiB2. A compact and rigid ultrasonic attachment is also described, which was developed as a removable tool for carrying out US grinding and US-ED-grinding on a machining center or a grinding center.

• Periodical: Key Engineering Materials (Volume 329)
• Pages: 439-444
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.329.439
• Online since: January 2007
• Authors: Kiyoshi Suzuki, Tetsutaro Uematsu, Manabu Iwai, Shinichi Ninomiya, Sadao Sano, Takeo Nakagawa
• Keywords: Ceramic Material, Machining Center, Metal-Bonded Grinding Wheel, Ultrasonic Electrodischarging Grinding Method

References

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[2] T. Nakagawa, K. Suzuki, T. Uematsu: Highly efficient grinding of ceramics and hard metal on grinding center, Annals of the CIRP vo1. 35/1, (1986), PP. 205-210.

DOI: 10.1016/s0007-8506(07)61871-x

[3] K. Suzuki, T. Uematsu, T. Nakagawa: On-machine trueing/ dressing of metal bond grinding wheels by electro-discharge machining, Annals of the CIRP vo1. 36/1, (1987).

DOI: 10.1016/s0007-8506(07)62566-9