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Yttria-Calcia-Co-Stabilized Tetragonal Zirconia Polycrystals Made by Powder Mixing. [PDF]
Materials (Basel)Grübel S, Osswald B, Kern F.
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A new method of controlling lapping speed in high speed lapping machine
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, 2010This paper proposes a new method to control lapping speed of the lapping machine properly, which may reduce lapping stroke and improve lapping accuracy and quality. In the beginning of lapping, the rotating acceleration of the lapping tool is controlled. It makes the acceleration increase from zero slowly.
null Yang Jiandong +3 more
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Nanometer lapping technology at high speed
Science in China Series D: Earth Sciences, 2007In floating lapping with solid abrasives, the workpiece is taken as an isolated body. The forces that act on it are analyzed. A differential equation about the forces that act on it is set up, so the forces that act on it and its motion rule are received. Combining it with known lapping tool motion, the relative motion rule between the lapping tool and
JianDong Yang +2 more
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Lapping Pressure Automatically Controlling Method in High Speed Lapping
2010 International Conference on Intelligent Computation Technology and Automation, 2010The computer control technique is used to control lapping pressure on-line in this paper. In the starting period of lapping, contacting state between the workpiece surface and lapping tool surface is not ideal case. In order to reduce the impact between the workpiece and lapping tool, in starting lapping, the lapping pressure is lower, and then ...
Yang Jiandong +3 more
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High speed lapping paraboloid by means of a lapping tool bending method
SPIE Proceedings, 2006This paper discusses a new lapping hyperboloid method, which combines high-speed lapping technology with solid abrasives and lapping tool bending method. In this method a bending moment is acted as a lapping tool with solid abrasives, which makes it bend and form a shape on its working surface, which is similar as the generating line of workpiece ...
Qun Liu, Jiandong Yang, Chunlin Tian
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High Speed Lapping Ellipsoid by Means of a Lapping Tool Bending Method
Key Engineering Materials, 2007This paper discusses a new lapping ellipsoid method, which combines high-speed lapping technology with solid abrasives and lapping tool bending method. In this method, a bending moment is acted on lapping tool with solid abrasives, which makes it bend to form a shape on its working surface, which is the same as generant of workpiece shape.
J.D. Yang +4 more
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High-speed mechanical lapping of CVD diamond films using diamond wheel
International Journal of Refractory Metals and Hard Materials, 2012Abstract The high-speed mechanical lapping of a CVD diamond film was carried out by using a resin-bonded diamond wheel. The influences of lapping speed, lapping pressure and lapping time on the surface character, roughness and material removal rate have been studied by using scanning electron microscopy, stylus profilometer, analytical balance and ...
L. Zhou, S.T. Huang, X.L. Wang, L.F. Xu
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High Speed Lapping of SiC Ceramic Material with Fixed Abrasive
Key Engineering Materials, 2007An experimental investigation is carried out to machine SiC ceramic material through method of high speed plane lapping with fixed abrasive. The results show that the material removal mechanism and the surface roughness are chiefly related to the granularity of abrasive and the lapping pressure for the brittle materials such as SiC ceramic.
Jie Cai Han, Yu Min Zhang, Han Jie Cai
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Surface Topography Characteristics in Ultrasonic Aided High Speed Lapping of Engineering Ceramics
Advanced Materials Research, 2008Because of its high machining efficiency and good machining quality, ultrasonic aided high-speed lapping with solid abrasive is regarded as a good method of cylindrical machining for engineering ceramics. Compared with conventional lapping, ultrasonic aided high speed lapping has unique surface topography distribution characteristics for the difference
Feng Jiao
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Advanced Materials Research, 2010
The surface roughness of machined surface is one of the important indicators to evaluate the workpiece machining quality. In order to clarify the change law of surface roughness in ultrasonic aided high-speed lapping with solid diamond abrasive, a series of ultrasonic and conventional lapping experiments of different engineering ceramics, such as Al2O3,
Feng Jiao
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The surface roughness of machined surface is one of the important indicators to evaluate the workpiece machining quality. In order to clarify the change law of surface roughness in ultrasonic aided high-speed lapping with solid diamond abrasive, a series of ultrasonic and conventional lapping experiments of different engineering ceramics, such as Al2O3,
Feng Jiao
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