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Online since: October 2010
Authors: Deng Feng Zhao, Guo Ying Zeng
Multipoint Rapid Metal Forming Technology
Based on Micro-fluid Control
Guoying Zenga and Dengfeng Zhaob
School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan Province 621010, P.R.
In this mode filaments or powdered materials are sent to position deposited, then laser beam or electron beam create fused pool which can be move at position deposited thus material fusing and depositing.
Crucible should be made of material without infiltration with metal liquid.
Preliminary Experiment Limited to experimental conditions, experiments on open and close of micro-pore for three material of Hg, Bismuth Lead Si low melting alloy and Pure Tin have been performed.
Yan, Chinese journal of mechanical engineering, Vol. 45(2005) No.11, pp.1-6.
In this mode filaments or powdered materials are sent to position deposited, then laser beam or electron beam create fused pool which can be move at position deposited thus material fusing and depositing.
Crucible should be made of material without infiltration with metal liquid.
Preliminary Experiment Limited to experimental conditions, experiments on open and close of micro-pore for three material of Hg, Bismuth Lead Si low melting alloy and Pure Tin have been performed.
Yan, Chinese journal of mechanical engineering, Vol. 45(2005) No.11, pp.1-6.
Online since: December 2010
Authors: Jiu Hua Xu, Zhi Bo Yang, Ai Ju Liu
Acknowledgement
This research was supported by the financial supports from Jiangsu Natural Science Fund, P.
China (BK2006723), Natural Science Fund by the Education department of Henan Province P.R.
Key Engineering Materials. v 359-360, 2008, p 43-47 [3] S.F.
TSAI and S.T.LIN: Materials Chemistry and Physics.
Chinese Journal of lasers (In Chinese). v 36, 2009, p 3079-3083
China (BK2006723), Natural Science Fund by the Education department of Henan Province P.R.
Key Engineering Materials. v 359-360, 2008, p 43-47 [3] S.F.
TSAI and S.T.LIN: Materials Chemistry and Physics.
Chinese Journal of lasers (In Chinese). v 36, 2009, p 3079-3083
Online since: December 2013
Authors: Roman Ružarovský, Radovan Holubek
The methods for increasing of the efficiency in the intelligent assembly cell
Radovan Holubek1, a, Roman Ružarovský2,b
1, 2, Faculty of Material Science and Technology, Slovak University of Technology, Paulinska 16, 917 24 Trnava, Slovak Republic
aradovan.holubek@stuba.sk, broman.ruzarovsky@stuba.sk,
Keywords: efficiency, intelligent assembly cell, process visualization, monitoring
Abstract.
Allowing the machines to continue working as long as the stock of material and technical conditions of the machine are satisfactory, has already become operational reality, so it is essential to provide electronic systems to monitor the production process.
Acknowledgment This article was created with the support by project realized in Slovak University of Technology, Material Science and Technology in Trnava – Young Researcher - Research of the possibilities for increasing the efficiency of assembly in intelligent assembly cell References [1] H.
Shirvani, Implementation of TPM in cellular manufacture, Journal of Materials Processing Technology, Volume 103, Issue 1, 1 June 2000, Pages 149–154 [4] V.
Trnava, AlumniPress, 2012, Applied Mechanics and Materials, ISSN 1660-9336(PRINT), Vol. 309, p. 55-61
Allowing the machines to continue working as long as the stock of material and technical conditions of the machine are satisfactory, has already become operational reality, so it is essential to provide electronic systems to monitor the production process.
Acknowledgment This article was created with the support by project realized in Slovak University of Technology, Material Science and Technology in Trnava – Young Researcher - Research of the possibilities for increasing the efficiency of assembly in intelligent assembly cell References [1] H.
Shirvani, Implementation of TPM in cellular manufacture, Journal of Materials Processing Technology, Volume 103, Issue 1, 1 June 2000, Pages 149–154 [4] V.
Trnava, AlumniPress, 2012, Applied Mechanics and Materials, ISSN 1660-9336(PRINT), Vol. 309, p. 55-61
Online since: June 2007
Authors: Zheng Zhong, G.J. Nie
And ( , )E x y
is determined based on the constitutive relationship of material and the current stress level of points
on the section of the member.
For the perfectly elasto-plastic material, the constitutive equation and its incremental formulation can be expressed as ( , ) ( , ), ( , ) ( , ),
Acknowledgements This work was supported by Natural Science Foundation of Shanghai (Project no. 05zr14122), Science Foundation of Tongji University.
Key Engineering Materials Vols. 274-276 (2004), p. 673-678
Journal of Tongji University Vol. 23(1995), p. 488-492.
For the perfectly elasto-plastic material, the constitutive equation and its incremental formulation can be expressed as ( , ) ( , ), ( , ) ( , ),
Acknowledgements This work was supported by Natural Science Foundation of Shanghai (Project no. 05zr14122), Science Foundation of Tongji University.
Key Engineering Materials Vols. 274-276 (2004), p. 673-678
Journal of Tongji University Vol. 23(1995), p. 488-492.
Online since: October 2011
Authors: Chang Bao Wen, Yong Feng Ju, Li Min Wen, Yan Ming Li, Yan Shao, Wan Lin Li, Wen Zheng Sun, Xin Xu
Zinc oxide (ZnO) is an n-type semiconductor material with wide band gap and a high exciton binding energy of 60meV.
Therefore, one can spread some sound absorption materials at the terminal of BAW transmitting, and ultimately eliminate the BAW that interferes in the performance of SAW gas sensor.
This project is supported by the National Natural Science Foundation of China (Grants No.60806043), the China Postdoctoral Science Foundation, the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University, and the Key Laboratory Foundation of Shaanxi Engineering and Technique Research Center for Road and Traffic Detection.
Runion, Elevated atmospheric carbon dioxide in agroecosystems affects groundwater quality, Journal of Environmental Quality 25 (1996) 720-725
Huq, Advances in SAW-based gas sensors, Smart Materials and Structures 6 (1997) 689-699
Therefore, one can spread some sound absorption materials at the terminal of BAW transmitting, and ultimately eliminate the BAW that interferes in the performance of SAW gas sensor.
This project is supported by the National Natural Science Foundation of China (Grants No.60806043), the China Postdoctoral Science Foundation, the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University, and the Key Laboratory Foundation of Shaanxi Engineering and Technique Research Center for Road and Traffic Detection.
Runion, Elevated atmospheric carbon dioxide in agroecosystems affects groundwater quality, Journal of Environmental Quality 25 (1996) 720-725
Huq, Advances in SAW-based gas sensors, Smart Materials and Structures 6 (1997) 689-699
Online since: December 2012
Authors: Ya Xiong Jiang, Shu Ming He, Hai Yun Xie, Xiong Tong
At present the tailings are used as refractory materials, building materials and so on[4], furthermore, it can be used in environment protection as well such as wastewater treatment, discharge-gas treatment etc[5].
Material and Method Sample and Reagent Tailing samples are from bauxite direct- flotation which is carried out in the lab.
Acknowledgements This work was financially supported by the National Science Foundation of China (Grant No.u0937602/L07),and the Yunnan Provincial Foundation for Applied Basic Research (Grant No.KKS0200921018) References [1] Chongyu Yang.
Technical Manual of Refractory Materials[M].
Journal of Wuhan university of technology-mater[J].
Material and Method Sample and Reagent Tailing samples are from bauxite direct- flotation which is carried out in the lab.
Acknowledgements This work was financially supported by the National Science Foundation of China (Grant No.u0937602/L07),and the Yunnan Provincial Foundation for Applied Basic Research (Grant No.KKS0200921018) References [1] Chongyu Yang.
Technical Manual of Refractory Materials[M].
Journal of Wuhan university of technology-mater[J].
Online since: September 2003
Authors: Lin Geng, A.H. Feng, Gui Song Wang
Box 433, School of Material Science and Engineering, Harbin Institute of Technology,
Harbin 150001, China, email: ahfengcn@hotmail.com
Keywords: silicon nitride, Whisker, Aluminum, Composite, Compressive deformation
Abstract.
Experimental Materials and Procedures � -Si3N4w/4032Al composites with 20% volume fraction of the reinforcement were fabricated by squeeze casting.
The reinforcement materials were �-Si3N4 whiskers with an average diameter of 0.5� m and an average length of 20� m.
/o C /o C Table 1 Composition of the 4032 aluminum alloy Element Si Mg Cu Ni Al Content (wt.%) 11.5 ~ 13.5 0.8 ~ 1.3 0.5 ~ 1.3 0.5 ~ 1.3 Balance Results and Discussion DSC analysis for the Si3N4w/4032Al composite and unreinforced 4032Al alloy was performed to measure the exact melting points of these materials.
Mabuchi et al: International Journal of Plasticity, 2001, 17, p.399
Experimental Materials and Procedures � -Si3N4w/4032Al composites with 20% volume fraction of the reinforcement were fabricated by squeeze casting.
The reinforcement materials were �-Si3N4 whiskers with an average diameter of 0.5� m and an average length of 20� m.
/o C /o C Table 1 Composition of the 4032 aluminum alloy Element Si Mg Cu Ni Al Content (wt.%) 11.5 ~ 13.5 0.8 ~ 1.3 0.5 ~ 1.3 0.5 ~ 1.3 Balance Results and Discussion DSC analysis for the Si3N4w/4032Al composite and unreinforced 4032Al alloy was performed to measure the exact melting points of these materials.
Mabuchi et al: International Journal of Plasticity, 2001, 17, p.399
Online since: December 2012
Authors: Feng Li, Qi Lin Zhao, Jian Ping Wang
Influence Factors of the Compression Performance of CFRP Sheet Confined GFRP Short Pipe
Feng Li1,2,a, Qilin Zhao2,b and Jianping Wang2,c
1College of Mechanics and Materials, Hohai University, 1 Xikang road, China 210098
2 PLA University of Science and Technology, 1 Haifu Avenue, China 210007
alifeng7949@163.com, bzhaohsql919@163.com, cwjpsjrwj@163.com
Keywords: CFRP sheet confined GFRP short pipe, Compression performance, Mechanical parameters, Geometrical parameters.
Table 1 Data of the raw materials Data Elastic modulus (GPa) Poisson ratio Volume fraction (%) Layer thickness (mm) Epoxy resin and curing agent 5 0.269 0.6 — E-glass fiber 38 0.3 0.4 — High modulus carbon fiber 400 — — 0.167 The test was executed on a 200t compression testing machine.
The average value of ultimate compressive press of the GFRP pipes used in experiments was 82.3MPa through material property test.
Compression performance of CFRP sheet confined GFRP pipe is affected by the mechanical material property of GFRP pipe and CFRP sheet.
[3] Zhang, G., Liu, B., Bai, G. and Liu, J: International Journal of Structural Engineering and Mechanics, Vol.33 (2009), p. 653
Table 1 Data of the raw materials Data Elastic modulus (GPa) Poisson ratio Volume fraction (%) Layer thickness (mm) Epoxy resin and curing agent 5 0.269 0.6 — E-glass fiber 38 0.3 0.4 — High modulus carbon fiber 400 — — 0.167 The test was executed on a 200t compression testing machine.
The average value of ultimate compressive press of the GFRP pipes used in experiments was 82.3MPa through material property test.
Compression performance of CFRP sheet confined GFRP pipe is affected by the mechanical material property of GFRP pipe and CFRP sheet.
[3] Zhang, G., Liu, B., Bai, G. and Liu, J: International Journal of Structural Engineering and Mechanics, Vol.33 (2009), p. 653
Online since: January 2012
Authors: Jiai Xue, Hao Jiang, Jun Yao
Due to the complex thermo-mechanical coupling and plastoelastic deformation of materials during this emergent braking progress, the analytical solutions of stress field and temperature filed of frictional surface cannot be obtained[2].
The transient heat conduction differential equation for isotropic materials in Cartesian coordinate system can be given in Eq.1[4]
The safety gear is made of Be-bronze and the material parameters are given in Table 1.
Jiangxi Science and Technology Press, Nanchang(2002)
Journal of Southeast University (Natural Science Edition), 2007, 37(4), p666-670.
The transient heat conduction differential equation for isotropic materials in Cartesian coordinate system can be given in Eq.1[4]
The safety gear is made of Be-bronze and the material parameters are given in Table 1.
Jiangxi Science and Technology Press, Nanchang(2002)
Journal of Southeast University (Natural Science Edition), 2007, 37(4), p666-670.
Online since: June 2013
Authors: Xiang Dong Peng
The first is to reduce the energy, automobile, steel, transportation, chemical industry, building materials and other high-carbon industry arising out of the industrial chain, these industries on downstream industries "low carbon", followed by adjustment of high-carbon industrial structure.
The Applied Science,vol.20,2010,pp.110 -113
Communist Party Journal, vol.5,2010, pp.55-62
A New Era of Science and Technology. 2005
Beijing: Science Press, 2006
The Applied Science,vol.20,2010,pp.110 -113
Communist Party Journal, vol.5,2010, pp.55-62
A New Era of Science and Technology. 2005
Beijing: Science Press, 2006