A Fundamental Study on Optimal Oxide Layer of Fine Diamond Wheels during ELID Grinding Process

2006 ◽  
pp. 176-180 ◽  
Author(s):  
Y. Dai ◽  
Hitoshi Ohmori ◽  
Wei Min Lin ◽  
D. Jiang
Keyword(s):  
Oxide Layer ◽  
Grinding Process ◽  
Fundamental Study ◽  
Elid Grinding ◽  
Fine Diamond

A Fundamental Study on Optimal Oxide Layer of Fine Diamond Wheels during ELID Grinding Process

2006 ◽  
Vol 304-305 ◽  
pp. 176-180 ◽  
Author(s):  
Y. Dai ◽  
Hitoshi Ohmori ◽  
Wei Min Lin ◽  
D. Jiang
Keyword(s):  
Oxide Layer ◽  
Material Removal ◽  
Interface Layer ◽  
Optimal Thickness ◽  
Wheel Surface ◽  
Fundamental Study ◽  
Elid Grinding ◽  
Starting Point ◽  
Fine Diamond ◽  
Quality Surface

In ELID (Electrolytic In-process Dressing) operations, the setting of starting point is quite important for reducing waste of time and for achiving high quality surface. In this study, the authors proposed a new describing mode for ELID grinding. The oxide layer formed on the wheel surface was divided to four sub-layer: porous-layer, polishing-layer, grinding-layer and interface-layer. The influence of the oxide layer on material removal rates and surface properties was investigated. It was found that, olny the oxide layer with thickness less than 24'm has capability of material removal. In ELID grinding, optimal thickness of the oxide layer is about 8~9'm. And the oxide layer with thickness of 4~9'm is suitable for grinding.

Principle and Method for Oxidation Layer Measurement in Electrolytic In-Process Dressing (ELID) Grinding

2011 ◽  
Vol 301-303 ◽  
pp. 515-519
Author(s):  
Bao Ji Ma ◽  
Yin Xia Wang
Keyword(s):  
Oxide Layer ◽  
Measurement Method ◽  
Current Sensor ◽  
Laser Sensor ◽  
Calculation Methods ◽  
Method Evaluation ◽  
Elid Grinding ◽  
Inner Surface ◽  
Variation Characteristics ◽  
Measurement Principle

Based on the analysis of formation and variation characteristics of oxide layers in ELID grinding, a new measurement principle and method for oxide layer measurement in ELID grinding was proposed. The thickness of the oxide layer was obtained based on measurement both outside surface and inner surface of the oxide layer by laser sensor and eddy current sensor. Calculation methods for measurement of the oxide layer in different ELID grinding periods were presented. In order to verify the correctness of the measurement principle and measurement method, evaluation experiments were down. Results show that the precision of the measurement is sufficient to be applied in ELID grinding.

Surface Behaviors of ELID Ground Engineering Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 1469-1472 ◽  
Author(s):  
Jian Yun Shen ◽  
Wei Min Lin ◽  
Hitoshi Ohmori ◽  
Xi Peng Xu
Keyword(s):  
Mechanical Properties ◽  
Material Properties ◽  
Material Removal ◽  
Grinding Process ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Silicon Nitride Ceramic ◽  
Engineering Ceramics ◽  
Elid Grinding ◽  
Engineering Ceramic

In this study, grinding of Si3N4, SiC, and Al2O3 ceramics under the condition of electrolytic in-process dressing (ELID) system was investigated. The surface appearances of these engineering ceramics during the ELID grinding process were attentively observed to describe the formation of finely finished surfaces. Based on the analysis of material properties and detailed micro-observation of ground surfaces, it can be concluded that the material removal mechanism of engineering ceramic is closely related to its mechanical properties. The silicon nitride ceramic was most easily machined to precision surface among these three engineering ceramics.

A study on the equilibrium condition of the oxide layer in ELID grinding

2010 ◽  
Vol 3 (1) ◽  
pp. 25 ◽  
Author(s):  
Indraneel Biswas ◽  
A. Senthil Kumar ◽  
Mustafizur Rahman
Keyword(s):  
Oxide Layer ◽  
Equilibrium Condition ◽  
Elid Grinding

Development on Micro Precision Truing Method of ELID-Grinding Wheel (2nd Report: Application to Edge Sharpening of Large Wheel)

2005 ◽  
Vol 291-292 ◽  
pp. 213-220 ◽  
Author(s):  
Shao Hui Yin ◽  
Wei Min Lin ◽  
Yoshihiro Uehara ◽  
Shinya MORITA ◽  
Hitoshi Ohmori ◽  
...  
Keyword(s):  
Surface Quality ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Grinding Wheels ◽  
Elid Grinding ◽  
Diamond Grinding ◽  
Grinding Performance ◽  
Profile Accuracy ◽  
Large Wheel ◽  
Edge Sharpening

In V-groove ELID grinding process, to achieve optimal grinding performance and satisfactory surface quality and profile accuracy, metal bonded diamond grinding wheels need to be carefully sharpened. In this paper, we applied the proposed new micro-truing method consisting of electro-discharge truing and electrolysis-assisted mechanical truing to sharpen the edge of large grinding wheels. The minimum wheel tip radiuses of 6.3 and 8.5µm were achieved for the #4000 and #20000 grinding wheels. The truing mechanisms and sharpening performance are also discussed.

1406 Ultra-precision Aspherical fabrication with ELID Grinding process for Gradient Index (GRIN) Lens

2006 ◽  
Vol 2006.4 (0) ◽  
pp. 29-30
Author(s):  
Yutaka WATANABE ◽  
Hitoshi OHMORI ◽  
Weimin LIN ◽  
Yoshihiro UEHARA ◽  
Shin-ya MORITA ◽  
...  
Keyword(s):  
Grinding Process ◽  
Gradient Index ◽  
Elid Grinding ◽  
Grin Lens ◽  
Ultra Precision

230 Fundamental Study on ELID Grinding of Lightweight Mirror for Astronomical Telescope : Fabrication of CVD-SiC mirror by machining center

2001 ◽  
Vol 2001.3 (0) ◽  
pp. 217-218
Author(s):  
Yutang DAI ◽  
Weimin LIN ◽  
Hitoshi OHMORI ◽  
Noboru EBIZUKA ◽  
Toshikazu EBISUZAKI ◽  
...  
Keyword(s):  
Fundamental Study ◽  
Elid Grinding ◽  
Machining Center
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