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Online since: October 2013
Authors: Si Wen Tang, Peng Nan Li, De Shun Liu, Wen Bo Tang, Xin Yi Qiu
Titanium Carbonitride (TiCN) based cermets are important cutting tools materials.
Fabrication of the material is time and cost consuming process for the traditional sintering.
Introduction Titannium carbonitride based cermets have high hardness and thermal stability ,excellent wear and creep resistant, which makes it a promising cutting tool material[1].
Khor: Annual Conference on Functional Materials and Nanotechnologies (2011), 1
Kim: Journal of Ceramic Processing Research.
Online since: October 2007
Authors: Tao Gao, Yu Li Liu, He Yang
Effects of Friction on Precision Forging Process of Blade with A Damper Platform Y.L.Liu 1,a, H.Yang 1,b and T.Gao 1,c 1 College of Materials Science and Engineering, Northwestern Polytechnical University, P.O.Box 542, Xi'an, Shaanxi, 710072, China a lyl@nwpu.edu.cn, byanghe@nwpu.edu.cn, cgaotao@mail.nwpu.edu.cn Keywords: Blade with a damper platform, Friction, Precision forging, 3D-FEM simulation Abstract.
Numerical Simulation Conditions The material of the blade used in the simulation is Ti-6Al-4V, its rigid-viscoplastic constitutive relationship is as follows [5]: )1( εβ λσ ekZ nm −= )/( .
RTQ eZ ε= εα λ λλ − −+= eZ Z q q )1( 00 (2) the material parameters [5] for Ti-6Al-4V are k=4.96×10 -4, λ0=6.424, n=1, m=0.3, q=-0.0517, α=6.07, β=66.73, Q/R=50668.
Acknowledgments The authors would like to express their appreciation for the financial support of the Aeronautical Science Foundation of China (02H53061) and Project of science and technology of Xi'an(gg06046), Shaan'xi Province.
Workshop Simulation of metal forming Processes by the FEM (Stuttgart, 1985), p.125 [3] J.W.Brooks, T.A.Dean, Z.M.Hu and E.Wey: Journal of Materials Processing Technology Vol.80-81 (1998), p.149 [4] D.Y.Yang, N.K.Lee and J.H.Yoon: Journal of Materials Engineering and Performance Vol.2(1993), p.119 [5] Z.M.Hu, J.W.Brooks and T.A.Dean: Transactions of the ASME Vol.121(1999), p.366 [6] J.R.Zhang and T.Y.Zhao: Handbook of heat physical property of material (New Era Press, Beijing 1987).
Online since: September 2013
Authors: Jie Fan, Yong Liu, Kun Wang, Wei Jie Gao, Xiao E Wang
Experimental Materials.
M., Nakano, S., Yamane, H. & Kimura, Y.: Macromolecular Materials and Engineering.
Willis: Advanced materials, Vol.15 (2003), p. 1161
[6] Li XS, Yao C, Sun FQ, Song TY, Li YH, Pu YP: Journal of Applied Polymer Science,Vol.107 (2008), p. 3756
[7] Sun, FQ; Yao, C; Song, TY; Li, XS: Journal of the Textile Institute.
Online since: September 2010
Authors: Pei Ling Liu
Sustainable Machining Technology Challenges Sustainable machining is a material removal technology that can cut raw materials to precise component with reduced emission of greenhouse gases, reduced use of non-renewable or toxic materials and reduced generation of waste.
Re-machining to Save Material The most of material and energy are wasted in the in manufacturing processes.
Olling, 2003, "In-process Model Generation for the Process Planning of a Prismatic Part", Journal of Advanced Manufacturing Systems, Vol. 2, No. 2, pp. 147-162 [2] Jerard, R.
[3] Liu P.L et al, "A New Concept Integrated CAD/CAM System for Complicated Die & Mold", Advances in Computer Science Application to Machinery, International Academic Publisher, 1991.8, ISBN 7-8003-154-3/TH.2, pp.90-95 [4] Liu P.L. et al, "3D Complicated Parts Design Based on the Automatic Shape Generation", Chinese Journal of Mechanical Engineering (English Edition), Volume 5 Number 2, 1992, pp88-92
E., "Voxel-Based Modeling for Layered Manufacturing", IEEE Computer Graphics and Applications (1995), v.15 n.6 [8] Jang Donggo, Kim Kwangsoo, and Jung Jungmin ,"Voxel-based Virtual Multi-axis Machining", International Journal of Advanced Manufacturing Technology 16(10), 709-713, 2000 [9] http://www.engineeringchallenges.org
Online since: January 2013
Authors: Shu Kui Zhou, Guang Ming Zeng, Ying Jiu Liu, Hai Yang Jiang
Materials and methods Materials.
U3O8 was provided by National Research Center for Certified Reference Material.
Journal of Environmental Radioactivity, 78 (2) : 151-177
China Environmental Science, 31(9):1466-1471
Journal of the Graduate School of the Chinese Academy of Sciences, 26(5):627-632
Online since: March 2012
Authors: Rui Guo Cui, Weidong Yu
Materials and Methods Drosophila melanogaster.
We use female individual as sample, and it was provided by the Shanghai Institute for Biological Science, Chinese Academy of Science.
Santos, Frictional adhesion: a new angle on gecko attachment, The Journal of Experimental Biology. 209 (2006) 3569-3579
Gorb, Matthias Scherge, Biological micro-tribology: anisotropy in frictional forces of orthopteran attachment pads reflects the ultra-structure of a highly deformable material, Proceedings of The Royal Society of London Series B-biological Sciences. 267 (2000) 1239-1244
Contact behaviour of tenent setae in attachment pads of the blowfly Calliphora vicina (Diptera, Calliphoridae), Journal of Comparative Physiology.
Online since: January 2021
Authors: Valery Lesovik, Natalia I. Alfimova, Evgeny S. Glagolev, Michail Yu. Elistratkin, Marina A. Pospelova
Materials and Methods Materials For making fine-grained concrete for construction printing, Portland cements of types CEM I 42.5 N and sulphate resistant with puzzolana CEM II/A-P 42.5 N were used.
Elistratkin, Anisotropy of materials properties of natural and man-triggered origin, Research Journal of Applied Sciences. 9(11) (2014) 816–819
Olisov, Architectural design of residential modules using additive technologies, IOP Conference Series: Materials Science and Engineering. 698 (3) (2019) 033007. doi:10.1088/1757-899X/698/3/033007 [8] N.
Shorstova, Fiber concrete for 3-d additive technologies, Materials Science Forum. 974 (2019) 367–372.
Shurakov, On the question of mix composition selection for construction 3D printing, Materials Science Forum. 945 (2018) 218–225. doi: 10.4028/www.scientific.net/MSF.945.218 [17] Yu.M.
Online since: October 2014
Authors: Bogdan Ciobanu, Doru Calarasu, Dan Scurtu
Kaiser and G.Miskolczy, Viscosity of magnetic fluid in a magnetic field, Journal of Colloid and Interface Science.
Vékás, Flow behaviour of extremely bidisperse magnetizable fluids, Journal of Magnetism and Magnetic Materials. 322 (20) (2010) 3166-3172
Odenbach, Magnetic separation of ferrofluids, In: Proceedings of the 9th International Conference on Magnetic Fluids - November 2002, Journal of Magnetism and Magnetic Materials.
Wereley, Electrorheological Damper Analysis Using an Eyring Constitutive Relationship, Journal of Intelligent Material Systems and Structures.
Kelso, Fail-safe magneto-rheological fluid dampers for off-highway, high-payload vehicles, Journal of Intelligent Material Systems and Structures. 11 (2000) 395–406
Online since: December 2014
Authors: Song Xiang, Wei Ping Zhao, Li Guo Zhang, Kang Yang
Numerical examples The relative material properties are E1/E2=25, G12=G13=0.5E2, G23=0.2E2, v12=0.25.
Acknowledgements This work was financially supported by the Scientific Research Foundation project of Liaoning provincial education department (L2013073); Science and Technology Department Foundation project of Liaoning Province (2012220013); Shenyang Science and Technology Bureau Foundation project (F12-019-2-00).
Uzman, Frequency optimization of laminated skew plates, Materials & Design. 30 (2009) 3180-3185
Topal, Frequency optimization of laminated general quadrilateral and trapezoidal thin plates, Materials & Design. 30 (2009) 3643-3652
Narita, Layerwise optimization for the maximum fundamental frequency of laminated composite plates, Journal of Sound and Vibration. 263 (2003) 1005–1016
Online since: March 2015
Authors: Lei Luo, Qian Luo
China, 710025 2, The 41st Institute of Academy of China Aerospace Science and Technology Corporation National Key Laboratory of Combustion, Flow and Thermo-structure, Hong-qing Town, Xi’an, P.R.
Figure 1 Stator plane Schematic Picture Figure 2 Stator modal of Ultrasonic Motor Table 1 Parameters of the components parameter a1 a2 a3 a4 a5 a6 a7 R size (mm) 14 23 2 26 5 6 8 2 Table 2 Material parameters of the components Piezo-elect-ric ceram-ics material:PZT-8 density:7500, poisson ratio:- The piezoelectric strain constant matrix dielectric constant matrix The elastic constant matrix size length×width×thickness:14mm×8mm×2mm after cover material:phosphor bronze density:8500 elasticity modulus:0.92e11 poisson ratio:0.33 front cover material:duralumin density:3000 elasticity modulus:0.7e11 poisson ratio:0.3 Modal Analysis According to the model, linear perturbation analysis step and Lanczos method was used to solve the model.
Journal of Vibration, Measurement & Diagnosis, 1999,19(1):1-7
Journal of Vibration and Shock, 2007,26(6):100-102,187
Beijing: Science Press, 2007