Research on image detection and recovering of diamond grinding wheel topography in precision machining

2019 ◽  
Author(s):  
Zhenzhong Wang ◽  
Hui Yu ◽  
Ruocheng Wei ◽  
Liuwei Kong
Keyword(s):  
Precision Machining ◽  
Grinding Wheel ◽  
Image Detection ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Wheel Topography ◽  
Grinding Wheel Topography

Experiment Research on Grinding of Optical Glass with Indigenously Developed Monolayer Brazed Diamond Grinding Wheel

2010 ◽  
Vol 136 ◽  
pp. 279-283 ◽  
Author(s):  
Bei Zhang ◽  
Hong Jun Xu ◽  
Yu Can Fu ◽  
Hong Hua Su
Keyword(s):  
Optical Glass ◽  
Removal Rate ◽  
Ground Surface ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Short Service Life ◽  
Wheel Topography ◽  
Grinding Wheel Topography

Conventional grinding of optical glass will normally result in not only much lower material removal rate but also short service life of grinding tools, which causes the high fabrication cost of optical glass. This paper focuses on the precision grinding of optical glass with the indigenously developed monolayer brazed diamond grinding wheel. Before grinding process a precision dressing is conduct. The dressed grinding wheel topography is observed. Through precision dressing the grinding process achieves moderate surface finish as well as ensures certain grinding efficiency. The ground surface of the optical glass workpiece is made up of micro-pits and glazing zones and the obtained surface roughness variation with the process parameters is analyzed. The experiment shows that the developed diamond grinding wheel is suitable to the application of optical glass machining.

The application of 3D-motif analysis to characterize diamond grinding wheel topography

Measurement ◽  
2016 ◽  
Vol 77 ◽  
pp. 73-79 ◽  
Author(s):  
Ruifang Ye ◽  
Xiangqian Jiang ◽  
Liam Blunt ◽  
Changcai Cui ◽  
Qing Yu
Keyword(s):  
Grinding Wheel ◽  
Motif Analysis ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Wheel Topography ◽  
Grinding Wheel Topography

High Efficiency Abrasive Waterjet Dressing of Diamond Grinding Wheel

2014 ◽  
Vol 1017 ◽  
pp. 243-248 ◽  
Author(s):  
Peng Yao ◽  
Wei Wang ◽  
Chuan Zhen Huang ◽  
Jun Wang ◽  
Hong Tao Zhu ◽  
...  
Keyword(s):  
Feed Rate ◽  
High Efficiency ◽  
Water Jet ◽  
Surface Generation ◽  
Abrasive Waterjet ◽  
Grinding Wheel ◽  
Abrasive Water Jet ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Wheel Topography

A grinding wheel wears rapidly during ultrasonic assisted surface generation of a large aperture aspherical RB-SiC mirror, which leads to an increase of grinding force and profile error. In this paper, different types of resinoid bonded diamond grinding wheel with a same grit size were dressed with high-pressure abrasive water jet. The dressing effects of abrasive water jet were assessed through comparing the 3D roughness of the grinding wheel topographies before and after dressing. The experimental results show that diamond grits of a worn grinding wheel are protruding from bond after dressing. The feed rate of nozzle and the bond materials have significant impact on the 3D surface roughness of the wheel and dressing efficient. The softer binder and the decrease of the feed rates and lead to deeper grooves during dressing of grinding wheel. However, too low feed rate will make a large number of abrasive particles drop from binder, which worsens the wheel topography. Therefore, to dress grinding wheel well and efficiently, optimized feed rate must be chosen.

Study on the Dullness of Monolayer Brazed Diamond Grinding Wheel through Plate Wheel Dressing

2014 ◽  
Vol 1027 ◽  
pp. 159-162 ◽  
Author(s):  
Kun Zhang ◽  
Hong Hua Su ◽  
Feng Ming Dai
Keyword(s):  
Surface Roughness ◽  
Precision Machining ◽  
Grinding Wheel ◽  
Grinding Forces ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Sic Ceramics

A monolayer brazed diamond grinding wheel was dressed 23 times with a plate wheel. The grinding forces were measured during the grinding experiments which carried out on SiC ceramics after each dressing interval. The surface roughness of SiC ceramics was also measured. In this study, the dullness of the grinding wheel during the dressing procedure is mainly discussed. The results showed that the surface roughness of SiC ceramics reduced a lot after dressing which means the dressed grinding wheel can meet the requirements of precision machining. On the premise of this, there was no obvious dullness occurred on the grits of the grinding wheel during dressing because new cutting edges had emerged.

Einfluss der Schärfparameter auf die Schleifscheibentopographie*/Influence of the sharpening parameters on the grinding wheel topography

2019 ◽  
Vol 109 (07-08) ◽  
pp. 582-588
Author(s):  
E. Uhlmann ◽  
A. Muthulingam
Keyword(s):  
Economic Efficiency ◽  
Experimental Investigations ◽  
Grinding Wheel ◽  
Conditioning Process ◽  
Wheel Topography ◽  
Process Reliability ◽  
Grinding Wheel Topography ◽  
The Relationship

Einen wesentlichen Bestandteil der Schleiftechnik ist der Konditionierprozess zur Herstellung der Schleifscheibenform und -schnittigkeit. Durch das Schärfen wird die Bindung zurückgesetzt und der notwendige Schleifkornüberstand und Spanraum geschaffen. Ein CNC-gesteuerter Schärfprozess kann zur prozesssicheren und ressourceneffizienten Einstellung der gewünschten Schleifbelagstopographie genutzt werden. Umfangreiche Schärfuntersuchungen sollen hierbei Aufschluss über die Wirkzusammenhänge zwischen Schärfeinstellgrößen und Schärfergebnis geben.   An essential part of grinding technology is the conditioning process for the generation of the grinding wheel shape and of a sharp topography. Through the sharpening process the required cutting grains are exposed from the bond and sufficient chip space is ensured by putting back the bonding. A CNC-controlled sharpening process can lead to an improvement in process reliability and the economic efficiency. Extensive experimental investigations were carried out to determine the relationship between the sharpening parameters and the sharpening result.

Einfluss der Abrichtgrößen beim Schleifen*/Influence of dressing parameters on the grinding process - Systematic research of dressing parameters on workpiece roughness and surface integrity

2016 ◽  
Vol 106 (01-02) ◽  
pp. 44-50
Author(s):  
T. Lierse ◽  
B. Karpuschewski ◽  
T. R. Kaul
Keyword(s):  
Aluminum Oxide ◽  
Surface Integrity ◽  
Cvd Diamond ◽  
Grinding Wheel ◽  
Systematic Research ◽  
Grinding Process ◽  
Wheel Topography ◽  
Grinding Wheel Topography

Dieser Beitrag zeigt, dass die durch die Abrichtparameter erzeugte Schleifscheibentopographie nicht nur die Oberflächengüte des Werkstücks, sondern auch dessen Eigenspannungszustand in der Werkstückrandzone in weiten Grenzen verändert. Die Untersuchungen zum Abrichten von Korundschleifscheiben mit einer CVD-Diamantformrolle stellen den Zusammenhang zwischen dem Abrichten unterschiedlicher Schleifscheiben zur Bauteilqualität in Form der Oberflächenrautiefe und randzonennahen Eigenspannungen her.   The quality of the workpiece rim is changed by every grinding process. The grinding wheel topography created by the dressing process has not only influence on the workpiece roughness but also on the surface integrity. The pointed research using aluminum oxide abrasive wheels dressed by CVD diamond dressing discs shows a correlation between the dressing parameters, the workpiece roughness and the surface integrity.

Characteristics of the Wheel Surface Topography in Ultra-precision Grinding of Silicon Wafers

2008 ◽  
Vol 389-390 ◽  
pp. 36-41
Author(s):  
Feng Wei Huo ◽  
Dong Ming Guo ◽  
Ren Ke Kang ◽  
Zhu Ji Jin
Keyword(s):  
Surface Topography ◽  
Sampling Interval ◽  
Grinding Wheel ◽  
Height Distribution ◽  
Wheel Surface ◽  
Diamond Grinding Wheel ◽  
Diamond Grinding ◽  
Cutting Surface ◽  
Ultra Precision ◽  
Cutting Direction

A 3D profiler based on scanning white light interferometry with a lateral sampling interval of 0.11μm was introduced to measure the surface topography of a #3000 diamond grinding wheel, and a large sampling area could be achieved by its stitching capability without compromising its lateral or vertical resolution. The protrusion height distribution of diamond grains and the static effective grain density of the grinding wheel were derived, and the wheel chatter and the deformation of the wheel were analyzed as well. The study shows that the grain protrusion height obeys an approximate normal distribution, the static effective grain density is much lower than the theoretical density, and only a small number of diamond grains are effective in the grinding process with fine diamond grinding wheel. There exists waviness on the grinding wheel surface parallel with the wheel cutting direction. The cutting surface of the grinding wheel is not flat but umbilicate, which indicates that the elastic deformation at the wheel edges is much larger than in the center region.

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