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Numerical Simulation Research on Warm Forging Process for Spur Gear with Large Module based on Floating Die Method Kelong Yan, Junsong Jin, Xinyun Wang*, Juchen Xia, Jianjun Li State Key Lab of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China *Email: wangxy_hust@163.com, Phone(& Fax) :+86-27-87543491 Keywords: spur gear with large module, free floating die, warm forging, numerical simulation, process parameters.
Traditional cutting technique not only brings material-wasted, low productivity, but also decreases the mechanical property with the material flow cut, so the life of part is not long.
Material was assured to be isotropic and incompressible, and obeyed Mises yield criterion.
Xiong: Journal of Plasticity Engineering.
Xu: Journal of Plasticity Engineering.

A simplified method study of aluminium alloy fatigue crack tip parameters computed by elastic-plastic finite element model Xin Song1, a, Jing Zhong Xiang1,b, Jia Zhen Zhang2, c 1 Mechanical and Power Engineering College, Harbin University of Science and Technology, Harbin, 150080, China 2 Composite Materials and Structure Research Center, Harbin Institute of Technology, Harbin, 150001, China a songxin121@sina.coml, b xiangjingzhong@163.com, cjzzhang8888@yahoo.co.uk Keywords: Fatigue crack; Finite element; dynamic model; static model; aluminium alloy.
But for the aluminium alloy and most of the metal materials, elastic-plastic finite element model based on small scale yield condition is a better way than liner elastic modeling in the study of fatigue crack propagation.
Chinese Journal of Applied Mechanics Vol. 23(4) (2006), p.563-567
Chinese Journal of Applied Mechanics Vol. 24(1) (2007), p.42-46
Mechanics of Materials, Vol.36 (2004), p.601-622

Elber, Mechanics of fatigue crack closure, ASTM STP 982, Philadelphia: American Society for Testing and Materials, 1988
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International Journal of fatigue. 33 (2001) 719-726

High repetitive rate YAG laser pulse texturing, first developed by Institute of Mechanics, Chinese Academy of Sciences in 1992 [6-7].
Materials and methods Material.
Material component.
Etsion: Journal of Tribology, Vol. 127 (2005). p. 231-234
Neves et al.: Journal of Materials Processing Technology, Vol. 179 (2006), p.139-145

Introduction With the rapid development of science and technology, the requirements for material properties are becoming higher and higher, especially for materials working in a demanding environment where the material is often required to have high strength, good corrosion resistance and wear resistance, etc [1].
In this paper we studied the effects of gel casting process on the properties of materials [12].
Experimental Experimental raw materials.
(NH4)2S2O8,APS Beijing Chemical Reagent Factory Other raw materials used in this experiment are shown in Table 2.
Journal of Ceramic Society of Japan, 103, (1995)740-742

Porous magnesium materials appear to be promising candidates for scaffold production.
This method allows the fabrication of materials with desired open-cellular porosity, pore size and distribution [3].
Results And Discussion Starting materials.
Mabuchi: Materials Letters, 58 (2004) 357-360
Hermawan: International Journal of Biomaterials Vol. 2012 (2012) 10 pages.

Introduction The commericalization of MEMS technologies requires the evaluation of the mechanical properties of the thin sheets even films used as structural materials especially metal bellows and metal belts in order to guarantee the raliability of the device[1].
The machanical properties that are well known for bulk materials cannot be the same as that of thin sheets[2-4].
In this paper, the resistance of 316L stainless steel thin sheets to failure by tension-tension fatigue are studied. 1 Specimen and Experiment Tests pieces used in the present study were machined from the commercially available 0.1 mm thick sheet materials of 316L stainless steel.
Materials Science and Engineering.
International Journal of Fatigue., Vol. 20(1998), p. 203-209.

A Computer-controlled In-situ Analysis Instrument based on Laser Induced Breakdown Spectroscopy Jie Wang1,a, Mingjun Xu2 3,b, Linli Shi2 3,c, Qi Shi2 3,d, Yongchao Wang﹡{TTP}-415 1,e, Yixiang Duan﹡{TTP}-415 2,f 1 School of manufacturing science and Engineering, Sichuan University, Chengdu 610065, China 2 Research Center of Analytical Instrumentation, College of Life Sciences, Sichuan University, Chengdu 610064, China 3College of Chemistry, Sichuan University, Chengdu 610064, China a531647229@qq.com,b282120108@qq.com, c819258005qq.com,d675533655@qq.com, ewang_yongchao@sina.com, fYduan1@163.com ﹡{TTP}-415 Corresponding author:Yongchao Wang,E-mail: wang_yongchao@sina.com Yixiang Duan,E-mail: Yduan1@163.com.
A portable LIBS device capable of analyzing material component especially for drilling fluids in the drilling site was designed and assembled.
In recent years, a large number of scholars have conducted research on LIBS in the detection of various materials[10].
Journal of Analytical Atomic Spectrometry, 2012. 27(2): p. 276-283
[10] Liang, L., et al., Classification of steel materials by laser-induced breakdown spectroscopy coupled with support vector machines.

Science, 1998(279): 279～491
Chinese Journal of Applied Ecology, 1999, 10 (5) ∶635～640
Journal of Northwest University (Natural Science Edition), 2003, 33(1) :103-105(120)
Journal of Natural Resources. 2001,16(1):49-51
Environmental Science, 2004, 25(5):5-9

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Ramasawmy: International Journal of Refractory Metals & Hard Materials Vol. 28 (2010), p. 115
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