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Online since: February 2011
Authors: Lin Na Suo, Xiang Yang Sun, Su Yan Li
Materials and methods
Components and Medium Formulation.
Before being charred, materials were cut into 1.0 to 2.0-cm particles and air-dried.
After charring, all materials were dipped in room-temperature water for 2 h with a ratio (by volume) of materials to water of 1:2.
The charred materials were then air-dried and passed through a 2-cm screen.
Root mass of compost-mixed materials (C, C+CHG) were lower than those in charred materials and peat (Fig. 1).
Before being charred, materials were cut into 1.0 to 2.0-cm particles and air-dried.
After charring, all materials were dipped in room-temperature water for 2 h with a ratio (by volume) of materials to water of 1:2.
The charred materials were then air-dried and passed through a 2-cm screen.
Root mass of compost-mixed materials (C, C+CHG) were lower than those in charred materials and peat (Fig. 1).
Online since: June 2011
Authors: Bai Ling Jiang, Di Chun Chen, Ming Zhi Li
Microstructure and Mechanical Properties of CrAlTiCN Multilayer Films by Magnetron Sputtering Ion Plating
Dichun Chen 1,a, Bailing Jiang 2 and Mingzhi Li 2
1Advanced Analysis and Test Center, Xi’an University of Techonlogy, xi’an 710048, China
2School of Material Science and Engineering, Xi’an University of Techonlogy, xi’an 710048, China
aemail: chunzi_79@163.com
Key words: CrAlTiCN; Multilayer Film; Graphite target; magnetron sputtering.
In this case, the microhardness values of films mainly strengthen by nanocrystallite-size hardening, which described the effect of an increased strengthening with decreasing grain size in materials and solid solution hardening according to the rule of mixtures in the FCC CrN type MeN.
From literature [14], when the grain size was less than approximately 10 nm, further reduction in grain size would lead to decrease in microhardness, especially the microhardness of amorphous material was lower than the nanocrystalline material.
Vol. 241(1998), p.108 [12] A.Vyas, Y.G.Shen, Z.F.Zhou and K.Y.Li: Composites Science and Technology Vol. 68(2008), p. 292 [13] D.Rats, L.Vandenbulcke, R.Herbin, R.Benoit, R.Erre, V.Serin and J.Sevely: Thin Solid Films Vol. 270 (1995), p. 177 [14] S.Zhang, D.Sun,Y.Q.Fu and H.J.Du: Surf.
Parlebas: Journal of Electron Spectroscopy and Related Phenomena Vol. 107(2000), p. 91 [16] M.
In this case, the microhardness values of films mainly strengthen by nanocrystallite-size hardening, which described the effect of an increased strengthening with decreasing grain size in materials and solid solution hardening according to the rule of mixtures in the FCC CrN type MeN.
From literature [14], when the grain size was less than approximately 10 nm, further reduction in grain size would lead to decrease in microhardness, especially the microhardness of amorphous material was lower than the nanocrystalline material.
Vol. 241(1998), p.108 [12] A.Vyas, Y.G.Shen, Z.F.Zhou and K.Y.Li: Composites Science and Technology Vol. 68(2008), p. 292 [13] D.Rats, L.Vandenbulcke, R.Herbin, R.Benoit, R.Erre, V.Serin and J.Sevely: Thin Solid Films Vol. 270 (1995), p. 177 [14] S.Zhang, D.Sun,Y.Q.Fu and H.J.Du: Surf.
Parlebas: Journal of Electron Spectroscopy and Related Phenomena Vol. 107(2000), p. 91 [16] M.
Online since: September 2013
Authors: Yong Fei Chen, Yu Xiao, Jun Xiang
In the monitoring and Management Center, leadership, project manager and other relevant management staff can see the situation from the construction site at any time, Realization of remote coordination, guidance, improve work efficiency and management level, saving management cost; In addition, the wireless monitoring without trenching embedding, no cable, And the network provider to provide maintenance. front-end equipment is plug-and-play, easy to repair and low cost
II) Through the expressway construction site video image and sound, can Have a comprehensive understanding of safety and quality of construction site, can through image capturing leave evidence material about Security hidden danger part or process, Can also check whether the construction technology and materials to meet the requirements; Moreover, Regular or irregular construction site some violations or safety publicity materials into video clips, carry out publicity and education of employees, and to explain some of
Journal of university of electronic science and technology; 22-29(2002)
University of electronic science and technology; (2009).
Journal of university of electronic science and technology; 22-29(2002)
University of electronic science and technology; (2009).
Online since: May 2015
Authors: Emilia Roxana Florea, Cristina Neculache
The database will answer to the company’s need of having access to all information of a product group by particularization all the specifications – geometrical and material.
The specification of one product can be material and geometrical characteristic.
In the design documentation the considered product is described by form, dimensions, etc., a reference which would make connotations with others specifications: the materials, grain, strength, structure, binder [10].
Harun, Feature-based representation for manufacturing planning, International Journal of Production Research, 38 (2000) 4285-4300
Chen, Computing Manufacturing in Digital Manufacturing Science, in Fundamentals of digital manufacturing science, Springer, London, 2012, pp. 72-119
The specification of one product can be material and geometrical characteristic.
In the design documentation the considered product is described by form, dimensions, etc., a reference which would make connotations with others specifications: the materials, grain, strength, structure, binder [10].
Harun, Feature-based representation for manufacturing planning, International Journal of Production Research, 38 (2000) 4285-4300
Chen, Computing Manufacturing in Digital Manufacturing Science, in Fundamentals of digital manufacturing science, Springer, London, 2012, pp. 72-119
Online since: August 2014
Authors: Feng He Wu, En Ping Chen, Chong Min Jiang, Shao Hui Li
The motorized spindle is driven by built-in motor; it has some features, such as few components, simple structure and high precision, and it can only output a lower torque, so it is just suitable for processing aluminum alloy, titanium alloy and other high strength lightweight materials.
After importing the final three-dimensional model into Ansys Workbench, defining the material properties, selecting the element type, and meshing, the finite element model is built as shown in Fig.8.
Taking face milling cutter as an example, the material of tool is cemented carbide and the material of work-piece is carbon steel.
Acknowledgments The authors gratefully acknowledge the financial supports of the National Science and Technology Major Projects of China (Grant NO. 2013ZX04003-031), Science and Technology Research Projects of Higher Education of Hebei (Grant NO.
Saito: International Journal of Machine Tools & Manufacture, (2006) No. 46, pp.1097–1106
After importing the final three-dimensional model into Ansys Workbench, defining the material properties, selecting the element type, and meshing, the finite element model is built as shown in Fig.8.
Taking face milling cutter as an example, the material of tool is cemented carbide and the material of work-piece is carbon steel.
Acknowledgments The authors gratefully acknowledge the financial supports of the National Science and Technology Major Projects of China (Grant NO. 2013ZX04003-031), Science and Technology Research Projects of Higher Education of Hebei (Grant NO.
Saito: International Journal of Machine Tools & Manufacture, (2006) No. 46, pp.1097–1106
Online since: August 2011
Authors: Hao Li, Hai Tao Feng, Hui Xian Chen, Min Juan Du
The workpiece material used was alloy.
(2) the selection of material models: tools ( YT15, density 1.47g/cm3, hardness, bending strength: 5000MPa, elastic modulus:600GPa, Poisson's ratio:µ=0.3).
(7) Post-processing: To observe the deformation firstly, and then the deformation data is derived. 3.2 Leaf deformation under the instantaneous cutting force By ANSYS simulation software, ignoring the processing tool and workpiece material accuracy of fever on the premise of leaves to establish the initial conditions and module.
“Study on Net-Shape NC Machinging Technology of Thin-Balde of Aeroengine”, Mechanical science and technology.
“Key technologies of physics-based milling process simulation”, Journal of Zhejiang University(Engineering Science),2007.4(In Chinese) [4] Hu Chuangguo, “Thin Wall Precision Machining Distortion Control and Error Compensation Technique”,xi’an: Northwestern Polytechnical University,2007(In Chinese) [5] Ao Zhiqiang.
(2) the selection of material models: tools ( YT15, density 1.47g/cm3, hardness, bending strength: 5000MPa, elastic modulus:600GPa, Poisson's ratio:µ=0.3).
(7) Post-processing: To observe the deformation firstly, and then the deformation data is derived. 3.2 Leaf deformation under the instantaneous cutting force By ANSYS simulation software, ignoring the processing tool and workpiece material accuracy of fever on the premise of leaves to establish the initial conditions and module.
“Study on Net-Shape NC Machinging Technology of Thin-Balde of Aeroengine”, Mechanical science and technology.
“Key technologies of physics-based milling process simulation”, Journal of Zhejiang University(Engineering Science),2007.4(In Chinese) [4] Hu Chuangguo, “Thin Wall Precision Machining Distortion Control and Error Compensation Technique”,xi’an: Northwestern Polytechnical University,2007(In Chinese) [5] Ao Zhiqiang.
Online since: September 2012
Authors: Fabio de Angelis
Peric [15] proposed a perturbation method for low rate sensitive materials.
In the present paper we refer to the class of material behaviour often denoted in the literature as rate-sensitive materials, see e.g.
Perzyna: The constitutive equations for rate sensitive materials, Quart.
De Angelis: Multifield potentials and derivation of extremum principles in rate plasticity, Materials Science Forum, Vol. 539-543 (2007), pp. 2625-2630
Cancellara: Implications due to different loading programs in inelastic materials, Advanced Materials Research, Vol. 422 (2012), pp. 726-733
In the present paper we refer to the class of material behaviour often denoted in the literature as rate-sensitive materials, see e.g.
Perzyna: The constitutive equations for rate sensitive materials, Quart.
De Angelis: Multifield potentials and derivation of extremum principles in rate plasticity, Materials Science Forum, Vol. 539-543 (2007), pp. 2625-2630
Cancellara: Implications due to different loading programs in inelastic materials, Advanced Materials Research, Vol. 422 (2012), pp. 726-733
Online since: February 2011
Authors: Mohammad Mohasin Sarder, Md. Hossain Zahid, Habibullah Chowdhury, Enaiyat Ghani Ovy
All corresponding real-constant sets and material models were configured.
Venkata Rao “Parametric sensitivity analysis of a heavy duty passenger vehicle suspension system” ARPN Journal of Engineering and Applied Sciences, Volume 4, No 8, October 2009, Pages 15-24.
Venkata Rao “Parametric sensitivity analysis of a heavy duty passenger vehicle suspension system” ARPN Journal of Engineering and Applied Sciences, Volume 4, No 8, October 2009, Pages 15-24.
Online since: November 2011
Authors: Shu Lin Wang, Gang Liu, Wei Zhan Zhang, Bo Zhou
Table1 Chuck and tool performance parameter
Performance
material
elastic modulus[Gpa]
Poisson ratio
Density[]
yield strength[MPa]
Coefficient of friction
chuck
40cr
210
0.28
7.8
785
0.2
tool
Cemented carbide
640
0.22
15
5460
At present there is no effective way to calculate the value of critical oil pressure (one information [2] introduce the critical oil pressure about this series is 83MPa, the other information [3] introduce to 80 ~ 130MPa).
Acknowledgment The authors are grateful to Major national science and technology special projects for support of this project.
Shrink fit tool holder connection stiffness/damping modeling for frequency response prediction in milling, International Journal of Machine Tools & Manufacture 47 (2007) 1368–1380 [7] Jia Yue-mei, Zhao Qiou-xia, Zhao Guang-hui, Fluid mechanics.Beijing: National Defence Industry Press(2006,8)
Acknowledgment The authors are grateful to Major national science and technology special projects for support of this project.
Shrink fit tool holder connection stiffness/damping modeling for frequency response prediction in milling, International Journal of Machine Tools & Manufacture 47 (2007) 1368–1380 [7] Jia Yue-mei, Zhao Qiou-xia, Zhao Guang-hui, Fluid mechanics.Beijing: National Defence Industry Press(2006,8)
Online since: September 2011
Authors: Ying Ma, Sheng Zhong
From profiles of similar material simulation and numerical simulation in laboratory plane, it can be seen whether along the working direction or along the working face, fracture zone in the stope overlying strata displays parabola distribution, or semi-oval or circular shape distribution.
Shi: Coal Science and Technology, Vol. 27 (1999) No.5, p.26.
Wang: Journal of China University of Mining and Technology, Vol. 1 (1988) No.3, p.25.
Shi: Coal Science and Technology, Vol. 27 (1999) No.5, p.26.
Wang: Journal of China University of Mining and Technology, Vol. 1 (1988) No.3, p.25.