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It is known that neutral axial plane of the chip pass through the center of the chip section based on Material Mechanics.
Acknowledgement This research is supported by The National High Technology Research and Development Program ("863"Program) of China (2009AA044302), National Science and Technology Major Project (2009ZX04014-066-03), Youth science and technology special fundation of Heilongjiang Province(QC08C54) and youth scientific research fundation of Harbin (2008RFQXG064).
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plastic casing pipe reinforcement bar Fig1 Specimen Fig2 Strain gague Material and Mix ratio.
Acknowledgements This work was financially supported by the National Science Foundation of China (50878056，50978060), and project of Fujian province department of science & technology (2009H0027).
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Introduction Corncob xylitol residue is the waste of xylitol production from corncob, it contains high contents of carbohydrate and lignin and is a good raw material for producing activated carbon.
Acknowledgement: The project was funded through projects of Shandong Province Higher Educational Science and Technology Program (J12LF09) , Jinan Youth Star Science and Technology Program (2011-2-0312), and Program of Key Laboratory of Ministry of Education (08031313).
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Therefore, studying the semi-finishing and finishing of laser solid forming materials becomes necessary for its precision applications.
External turning operation experiments Prior to the analysis of the machinability of 2 TC4 alloys, the Rockwell hardness and micro-hardness were measured for both materials, respectively.
The Rockwell hardness was sampled at 3 random points for both materials.
Acknowledgement The research is supported by the National Science Foundation of China (NSFC: E 51305229), Beijing Municipal Science & Technology Commission (NO.
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Experimental Procedure Materials and sample preparation.
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It can be combined the metal materials's high strength, toughness and good processing property with the ceramic material's excellent wear and corrosion resistance, and chemical stability, it could greatly improve the service life of parts.
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For anisotropic material, thermal conductivity is not a scalar but a vector varies following the direction.
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The Effect of Surface Defect on EHL Point Contact Fan Yujin1, a, Li Zhekun1, Wang Weida1, Han Teng1 1Faculty of mechanical and electrical engineering, kunming university of science and technology, kunming,650050,china afanyujinkmust@163.com Keywords: EHL point contact; EHL lubrication; surface defect; lubrication; asperity Abstract.
Where, load parameter W=1.7×10-6, speed parameter U=3×10-11, material parameter G=4747, the synthesis radius of spherical lubrication surfaces R=5mm, Hertz contact pressure PH=1.0GPa, half width of Herth contact region B=68μm , the radius of circular convex defect and circular concave defect r=10μm, the length of linear convex defect and linear concave defect was 27μm , the height of convex defect and depth of concave defect h=0.05μm, the defect center position was in entrance and at a distance of 27μm from EHL contact center.
Acknowledgement This work is supported by the National Natural Science Foundation of China,No.51168020..
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Concrete is used as paving material for bridge deck pavement.
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