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Online since: July 2011
Authors: Min Wang, Mei Ling Jiang, Qiang Wei, Kan Feng Gu
Technique of laser-TIG hybrid T-shape joint welding of titanium alloy
Min Wang 1,a, Meiling Jiang 1,2,b, Qiang Wei1,c, Kanfeng Gu1,d
1Shenyang Institute of Automation, Shenyang, Liaoning Province, China
2Graduate School of the Chinese Academy of Sciences, Beijing, China
amwang@sia.cn, bmljiang@sia.cn, cqwei@sia.cn, dkfgu@sia.cn
Keywords: titanium alloy; T-joint; hybrid welding
Abstract.
In the process laser beam can go through the level sheet and melt the legislative sheet to realize the penetration connection; by controlling the welding current, the arc at a certain angle with the level sheet and the laser beam provide the melting heat to produce the appropriate filler metal; the welded joints temperature Distribution and the pool profiles can be exactly controlled by the selection and configuration of laser hybrid welding parameters, so under the pool metals gravity, surface tension of molten material and the constraints of the jig equipment the welding foot can be achieved at the back bilateral side of T-shape joint.
In addition, as the laser spot acts on the back of TIG molten pool, the laser absorptivity of the material is extremely high to penetrate the work-piece with ease and a deeply penetrated weld seam is formed in the central line of the legislative board.
[2] ZHANG Sheng-Hai, CHEN Kai, XIAO Rong-shi and ZUO Tie-chuan, Current situation of laser welding of high strength aluminum alloy in Tee joint, LASER JOURNAL, 2005, 26(4), P77~78
In the process laser beam can go through the level sheet and melt the legislative sheet to realize the penetration connection; by controlling the welding current, the arc at a certain angle with the level sheet and the laser beam provide the melting heat to produce the appropriate filler metal; the welded joints temperature Distribution and the pool profiles can be exactly controlled by the selection and configuration of laser hybrid welding parameters, so under the pool metals gravity, surface tension of molten material and the constraints of the jig equipment the welding foot can be achieved at the back bilateral side of T-shape joint.
In addition, as the laser spot acts on the back of TIG molten pool, the laser absorptivity of the material is extremely high to penetrate the work-piece with ease and a deeply penetrated weld seam is formed in the central line of the legislative board.
[2] ZHANG Sheng-Hai, CHEN Kai, XIAO Rong-shi and ZUO Tie-chuan, Current situation of laser welding of high strength aluminum alloy in Tee joint, LASER JOURNAL, 2005, 26(4), P77~78
Online since: December 2010
Authors: Jie Li
For example, spaceships can move long distances by using efficient electric engines, orbiting satellites can operate unlimited time periods without entry to Earth’s atmosphere, communication satellites can transfer a strong signal directly to customers, the International Space Station’s users can conduct many practical experiments and the global space industry can produce new materials.
As that is in science, the obstacles can slow, even stop, applications of these revolutionary innovations.
References [1] Bolonkin, A.A. (2003), “Optimal inflatable space tower with 3-100 km height”, Journal of the British Interplanetary Society, Vol. 56 Nos 3/4, pp. 97-107
As that is in science, the obstacles can slow, even stop, applications of these revolutionary innovations.
References [1] Bolonkin, A.A. (2003), “Optimal inflatable space tower with 3-100 km height”, Journal of the British Interplanetary Society, Vol. 56 Nos 3/4, pp. 97-107
Online since: November 2012
Authors: Guo Bin Li, Ye Hua Huang
Li, Study on plastic behaviours of CuNi10Fe1Mn alloy tubes under cast-roll process, Materials & Design 10(2009) 4478-4482
Walsh, Electrochemical Corrosion Behaviour of 90-10 Cu-Ni Alloy in Chloride-Based Electrolytes, Journal of Applied Electrochemistry 7(2004) 1235-1238
Fathi, Electrochemical behavior of copper–nickel alloys in acidic chloride solutions, Corrosion Science 8(2006) 912-915.
Walsh, Electrochemical Corrosion Behaviour of 90-10 Cu-Ni Alloy in Chloride-Based Electrolytes, Journal of Applied Electrochemistry 7(2004) 1235-1238
Fathi, Electrochemical behavior of copper–nickel alloys in acidic chloride solutions, Corrosion Science 8(2006) 912-915.
Online since: December 2012
Authors: Hong Yi Li, Yue Chen, Di Zhao
The Design and Implementation of 3D Visualization Pipeline Information System Based on 2D Figures
Hong-Yi Li1, a, Yue Chen2,b Di Zhao1,c,Corresponding author
1School of Mathematics and System Science, Beihang University, Beijing 100191, China
2School of Software, Beihang University, Beijing 100191, China
aHongyili_buaa@163.com, bzdhyl2010@126.com, czdhyl2010@163.com
Keywords: Computer-Aided Design, Virtual Reality, Pipeline Networks, Dwgdirect, Openscenegraph.
It includes the graphical interface module, layer selection module (in 2D version), layer zooming and transforming (in 2D version), roaming module, scene effects (i.e. lighting, textures, effects, colors, materials and etc.), model picking up and dragging module as well as the model adding and removing module.
Yan: Visiting AutoCAD DWG graphics files based on DWGDIrect, Journal of Engineering Graphics Vol. 6 (2010), p.178-181
It includes the graphical interface module, layer selection module (in 2D version), layer zooming and transforming (in 2D version), roaming module, scene effects (i.e. lighting, textures, effects, colors, materials and etc.), model picking up and dragging module as well as the model adding and removing module.
Yan: Visiting AutoCAD DWG graphics files based on DWGDIrect, Journal of Engineering Graphics Vol. 6 (2010), p.178-181
Online since: November 2012
Authors: Jian Jun Wu, Dai Xian Zhang, Rui Zhang, Zhen He, Fan Zhang
Discharge Characteristics of a Laser-electromagnetic Coupling Plasma Thruster for Spacecraft Propulsion
Daixian Zhanga, Rui Zhang, Zhen He, Fan Zhang and Jianjun Wub
College of Aerospace and Material Engineering, National University of Defense Technology, Changsha, Hunan, 410073, China
azhangdaixian@163.com, bjjwu@nudt.edu.cn
Keywords: Laser-electromagnetic Coupling Plasma Thruster, Discharge Characteristic, EVA.
Since any solid material can be used as the propellants in these cases, no tanks, valves, or piping systems are required for the propulsion system.
Acknowledgments The project was supported by the National Natural Science Foundation of China (Grant No. 11172327).
Phipps et al: Journal of Propulsion and Power, Vol. 26, No. 4, pp. 609-637. (2010) [4] J.
Since any solid material can be used as the propellants in these cases, no tanks, valves, or piping systems are required for the propulsion system.
Acknowledgments The project was supported by the National Natural Science Foundation of China (Grant No. 11172327).
Phipps et al: Journal of Propulsion and Power, Vol. 26, No. 4, pp. 609-637. (2010) [4] J.
Online since: September 2014
Authors: Lu Yang, Miao Cui, Xing Shan Liu
In class hours statistics, the result is lower than the minimum period of Liaoning university of traditional Chinese medicine, Changchun university of Chinese medicine is higher than the minimum period of and below the average hours of Heilongjiang university of Chinese medicine is the same as the period of highest.
2.3.2 Class Curriculum Comparison of Traditional Chinese Medicine
Northeast 3 university of Chinese medicine of traditional Chinese medicine class curriculum, TCM nursing were set up, and the rest of the different subjects are also focus on specialized courses setting, Changchun university of Chinese medicine set up an introduction to Chinese traditional culture, the basic theory of TCM, TCM internal medicine nursing, set up a basic theory of TCM and Heilongjiang university of Chinese medicine, Chinese medicine diagnostics of traditional Chinese medicine (TCM), Chinese material medico, pharmacology, internal medicine, gynecology, pediatrics of traditional Chinese medicine
For national statistics of 20 colleges and universities of Chinese medicine, according to the results of 17 colleges and universities have opened a Chinese medicine basic course, 4 to open diagnostics of traditional Chinese medicine, 6 open Chinese material medico, 7 in pharmacology, 6 open acupuncture, 7 to open massage, opened a Chinese medicine nursing 14, 4 opened medical nursing.
Summary With the development of medical science and the increased awareness of traditional Chinese medicine, TCM nursing for its own "dialectical nursing" has become more suitable for needs in current society.
References [1] Lisha Han.in:Thinking of the development of higher nursing education of traditional Chinese medicine,edited by Chinese Nursing Management Vol.7 (2007), p.16-17 [2] Xianliang Liu,Jingyu Tan and Yanfang DengHan, in:The research and analysis of traditional Chinese medicine colleges undergraduate nursing professional curriculum,edited by Chinese Journal of Nursing Education Chinese Nursing Management Vol.9 (2012), p.291-293.
For national statistics of 20 colleges and universities of Chinese medicine, according to the results of 17 colleges and universities have opened a Chinese medicine basic course, 4 to open diagnostics of traditional Chinese medicine, 6 open Chinese material medico, 7 in pharmacology, 6 open acupuncture, 7 to open massage, opened a Chinese medicine nursing 14, 4 opened medical nursing.
Summary With the development of medical science and the increased awareness of traditional Chinese medicine, TCM nursing for its own "dialectical nursing" has become more suitable for needs in current society.
References [1] Lisha Han.in:Thinking of the development of higher nursing education of traditional Chinese medicine,edited by Chinese Nursing Management Vol.7 (2007), p.16-17 [2] Xianliang Liu,Jingyu Tan and Yanfang DengHan, in:The research and analysis of traditional Chinese medicine colleges undergraduate nursing professional curriculum,edited by Chinese Journal of Nursing Education Chinese Nursing Management Vol.9 (2012), p.291-293.
Online since: January 2014
Authors: Pavol Tanuska, Milan Strbo, Augustin Gese, Marek Korytar
Model-Oriented Safety Analysis of Dynamic Technological Systems
Milan Strboa, Pavol Tanuskab, Augustin Gesec, Marek Korytard
Institute of Applied Informatics, Automation and Mathematics, Faculty of Materials Science
and Technology, Slovak University of Technology in Bratislava,
Paulínska 16, 917 24 Trnava, Slovakia
amilan.strbo@stuba.sk, bpavol.tanuska@stuba.sk, cgese@stuba.sk, dmarek.korytar@stuba.sk
Key words: Safety analysis, method SQMD, qualitative model, quantitative (mathematical) model, hybrid model
Abstract.
Annals of Faculty of Engineering Hunedoara - Journal of Engineering Tom IX, Fasc. 3.s. 323--326.
Annals of Faculty of Engineering Hunedoara - Journal of Engineering Tom IX, Fasc. 3.s. 323--326.
Online since: January 2014
Authors: Alexandr Vasilievich Gradoboev, Ksenia Nikolaevna Orlova
The first problem is to determine if a semiconductor material with certain properties can be used for manufacturing devices with the required RR.
The second one consists of establishing requirements to the material in order to provide the required RR through the manufacture process.
Asanov, Problems of Atomic Science and Technology, Series : physics of radiation exposure to radio-electronic equipment, 2(2013) 64 - 66
Asanov, Journal of Radio Electronics, 4(2013), Mode of access : http://jre.cplire.ru/jre/apr13/7/text.pdf.
The second one consists of establishing requirements to the material in order to provide the required RR through the manufacture process.
Asanov, Problems of Atomic Science and Technology, Series : physics of radiation exposure to radio-electronic equipment, 2(2013) 64 - 66
Asanov, Journal of Radio Electronics, 4(2013), Mode of access : http://jre.cplire.ru/jre/apr13/7/text.pdf.
Online since: December 2010
Authors: Li Feng Sun, Hong Po Wang, Mao Fa Jiang, Qi Zheng Lin, Chun Lai Liu, Yong Zou
Effects of TiO2 on Crystal Phases of Mold Fluxes
Lifeng Sun 1,a, Hongpo Wang 1,b, Maofa Jiang 1,c,
Qizheng Lin 2,d, Chunlai Liu 2,e and Yong Zou 2,f
1College of materials and Metallurgy, Northeastern University, Shenyang, 110004, China
2Shanxi Taigang Stainless Steel Cooperation Limited, Taiyuan, 030003, China
agreen.feng@163.com
Key words: mold fluxes; TiO2; crystal phases; perovskite
Abstract: Under the experimental condition,the crystal phases of mold fluxes contained cuspidine, wollastonite and melilite.
Jiang: Journal of Northeastern University (Natural science), Vol. 25(2004), p. 559 [5] G.Y.
Jiang: Journal of Northeastern University (Natural science), Vol. 25(2004), p. 559 [5] G.Y.
Online since: September 2013
Authors: Ming Xing Li, Yang Liu, Yang Zhang, Zhen Yuan Jia, Wei Liu
Generally, during the forging process, there are some problems such as low utilization rate of forging materials, high cost of forging production and great energy consumption.
Acknowledgement This paper is supported by the Special Funds of the National Natural Science Foundation of China (Grant No. 51227004).
Chinese Journal of Computers.
Acknowledgement This paper is supported by the Special Funds of the National Natural Science Foundation of China (Grant No. 51227004).
Chinese Journal of Computers.