Factors Influencing the Surface Quality during Ultra-Precision Grinding of Brittle Materials in Ductile Mode

2004 ◽  
Vol 257-258 ◽  
pp. 201-206 ◽  
Author(s):  
Ming Jun Chen ◽  
Dan Li ◽  
Shen Dong ◽  
Fei Hu Zhang
Keyword(s):  
Surface Quality ◽  
Brittle Materials ◽  
Precision Grinding ◽  
Factors Influencing ◽  
Ductile Mode ◽  
Ultra Precision

Fabrication of Micro V-Grooves in Ultra-Precision Grinding

2016 ◽  
Vol 679 ◽  
pp. 179-183
Author(s):  
Ze Qin Lin ◽  
Su Juan Wang ◽  
Xin Du Chen
Keyword(s):  
Fiber Optics ◽  
Surface Quality ◽  
Prediction Models ◽  
High Surface ◽  
Surface Generation ◽  
Precision Grinding ◽  
High Surface Quality ◽  
Ductile Mode ◽  
Ultra Precision ◽  
General Aspects

Ultra-precision grinding is an effective method to machine the optical micro v-groove, which is one of microstructures applied to the fiber-optics connectors, displays and other photonics devices. The ultra-precision grinding technology directly obtains high surface quality for brittle materials when the grinding process is under the ductile mode. This paper introduces general aspects of ultra-precision grinding technology in the fabrication of the micro v-grooves structures and introduces the essential features of ultra-precision grinding. The process of the manufacturing of the optical micro v-grooves components is presented in this paper. It contains the prediction models of surface roughness and form accuracy in the ultra-precision grinding and the optimization model under the consideration of the influences of grinding parameters,grinder factors and the material properties on the surface quality and machining efficiency. This study therefore contributes to providing a further understanding on the mechanisms of material removal and surface generation in ultra-precision girnding.

scholarly journals Study on the Algorithm of Three-Dimensional Surface Residual Material Height of Nano-ZrO2 Ceramics under Ultra-Precision Grinding

Micromachines ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1363
Author(s):  
Yanyan Yan ◽  
Zhaoqing Zhang ◽  
Junli Liu ◽  
Haozhe Yan ◽  
Xiaoxu Wang
Keyword(s):  
Surface Quality ◽  
Calculation Method ◽  
Material Removal ◽  
Three Dimensional ◽  
Brittle Materials ◽  
Precision Grinding ◽  
Removal Process ◽  
Residual Material ◽  
Hard And Brittle Materials ◽  
Ultra Precision

A large number of studies have shown that the height of a residual material is the key factor affecting the surface quality of ultra-precision grinding. However, the grinding process contains several random factors, such as the randomness of grinding particle size and the random distribution of grinding particles, which cause the complexity of the material removal process. In this study, taking the Nano-ZrO2 as an example, the removal process of surface materials in ultra-precision grinding of hard and brittle materials was analyzed by probability. A new calculation method for the height of surface residual materials in ultra-precision grinding of Nano-ZrO2 was proposed, and the prediction model of the three-dimensional roughness Sa and Sq were established by using this calculation method. The simulation and experimental results show that this calculation method can obtain the more accurate surface residual material height value which accords with the characteristics of three-dimensional roughness sampling, which provides a theoretical reference for the analysis of the material removal process and the surface quality evaluation of ultra-precision grinding of hard and brittle materials.

Thermal Analysis of Laser Irradiation of Fused Silica

2011 ◽  
Vol 314-316 ◽  
pp. 1960-1964 ◽  
Author(s):  
Peng Yao ◽  
Ya Dong Gong ◽  
Suo Xian Yuan ◽  
Tian Feng Zhou ◽  
Ji Wang Yan ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Surface Roughness ◽  
Laser Irradiation ◽  
Fused Silica ◽  
Maximum Temperature ◽  
Precision Grinding ◽  
Micro Cracks ◽  
Ductile Mode ◽  
Ultra Precision ◽  
Simulation Results

To grind fused silica in ductile mode, surface and subsurface micro cracks (SSMC) on ground fused silica should be repaired by CO2 laser irradiation before ultra-precision grinding. In this paper, 2D thermal analysis of single pass laser irradiation of fused silica was conducted, and the simulation results were discussed by comparing with the experiment results. To repair SSMC and decrease the surface roughness of ground fused silica simultaneously, the maximum temperature on the surface during laser irradiation should be controlled higher than 3280 K and lower than 3550 K.

432 Ultra-precision Grinding of Brittle Materials

2001 ◽  
Vol 2001.3 (0) ◽  
pp. 281-282
Author(s):  
Hideo SHIBUTANI ◽  
Jyunichi IKENO ◽  
Naruto FUWA ◽  
Osamu HOEIUCHI ◽  
Hirofumi SUZUKI
Keyword(s):  
Brittle Materials ◽  
Precision Grinding ◽  
Ultra Precision

The Research of ELID Grinding Effect and Surface Quality on Carbonized Cold-Rolled Steel

2012 ◽  
Vol 229-231 ◽  
pp. 542-546
Author(s):  
J.L. Guan ◽  
Li Li Zhu ◽  
H.W. Lu ◽  
Zhi Wei Wang
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Grinding Wheel ◽  
Rolled Steel ◽  
Precision Grinding ◽  
Cold Rolled Steel ◽  
Elid Grinding ◽  
Peripheral Velocity ◽  
Ultra Precision ◽  
Cold Rolled

In this document, the electrolytic in-process dressing ( ELID ) grinding technique is used for ultra-precision processing experimental research on the carbonized cold-rolled steel (HRC60～80).A surface roughness of Ra6～8nm was obtained after ELID precision grinding. The results proved that adopting micro grain size (W1.5～W36) and high hardness cast iron based diamond grinding wheel, increasing the wheel peripheral velocity (18～20m/s) and reducing grinding depth can effectively improve surface quality and bring the surface roughness down. The wheel peripheral velocity, grinding depth as well as grinding fluid are the main factors during ultra-precision grinding.

Study on the Machining Principle and Experiment of Grinding

2013 ◽  
Vol 395-396 ◽  
pp. 1000-1003
Author(s):  
Qiang Xiao
Keyword(s):  
New Technology ◽  
Surface Damage ◽  
Grinding Wheel ◽  
Process Technology ◽  
Precision Grinding ◽  
Brittle To Ductile Transition ◽  
Elid Grinding ◽  
Ductile Mode ◽  
Grinding Mechanism ◽  
Ultra Precision

ELID for SiC which enables the improvement of surface quality is put forward. ELID grinding technology is new technology of ultra-precision grinding, and the oxide film is formed on grinding wheel by electrolytic in-process technology, thus the wheel is in-process dressed. SiC material removal mechanism and ELID grinding mechanism is analyzed, the character and condition of brittle to ductile transition of SiC and surface formation mechanism of ductile mode grinding of SiC are studied, the results show that ELID grinding can realize ductile grinding ,this will lower the surface damage and improve the machining efficiency.

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