Experimental Study on Ultra-Precision ELID Grinding for Concave Spherical Surface of Carbide

Fu Qiang Tong; Yong Zhang; Fei Hu Zhang

doi:10.4028/www.scientific.net/KEM.416.18

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 416Experimental Study on Ultra-Precision ELID...

Experimental Study on Ultra-Precision ELID Grinding for Concave Spherical Surface of Carbide

Abstract:

This paper describes the current situation of spherical grinding for carbide material. The experiment of Concave spherical ELID grinding of generating method for carbide is conducted. Because dressing electrode can’t be installed in limited space due to the small space of concave spherical surfaces and carbide material has good conductivity, the workpiece material was used as dressing electrode in the ELID grinding experiment. According to negative effect of spark discharge in the process of grinding to surface roughness, two methods "ELIDⅡ" and "ELID Ⅲ" were designed. Comparing and analyzing the experimental results, it is confirmed preliminary that the spherical error and surface roughness of the workpiece after "ELIDⅡ" grinding were better than those after the "ELID Ⅲ" grinding. The ELID grinding method using micro diamond powder wheel and using carbide workpiece as dressing electrode is an effective way for spherical ultra-precision grinding for carbide.

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Periodical:

Key Engineering Materials (Volume 416)

Pages:

18-22

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.416.18

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Online since:

September 2009

Authors:

Fu Qiang Tong, Yong Zhang, Fei Hu Zhang

Keywords:

Carbide, Concave Spherical Surface, ELID (ELectrolytic In-Process Dressing) Grinding

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