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The research of the assembly precision of CNC machine tools considering the joint surface characteristics Wanyu Lia, Cong Lub, Zhuo Yangc School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, China akurikun@163.com, bconglu@uestc.edu.cn, caeae98@gmail.com Keywords: Joint Surface, Response Surface Methodology, Assembly Precision Abstract.
Joint Surface Characteristics and Deformation There are many researches about joint surface static characteristics, and the following research has been the consensus: Main factors affecting the joint surface static characteristics are: surface pressure, material, processing method, surface roughness, structure type and size, surface features, surface shape error, medium conditions, static load on the surfaces.
Wong: International Journal of Production Research.
Liu: Chinese Journal of Scientific Instrument.
Tan: Journal of Mechanical Engineering, Vol. 47 (2011), p. 1-8 (In Chinese)

., Korea 3 Department of Physics & Advanced Material Science/CNST, Sun Moon University, Korea a sjahn0@sunmoon.ac.kr, bground@ground.co.kr, casj8866@ground.co.kr, d cgpark@sunmoon.ac.kr, esjan@sunmoon.ac.kr Keywords: Earth resistance, Maxwell equation, simulator, Runge-Kutta, discharge characteristics.
Yang: Journal of Computational and Applied Mathematics Vol. 166 (2004), p. 361 [3] G.V.
Sonnadara: Journal of Atmospheric and Solar-Terrestrial Physics Vol. 66 (2004), p. 1733 [5] S.R.
Gomes: Journal of Atmospheric and Solar-Terrestrial Physics Vol. 67 (2005), p. 413

These materials include carbon nanostructures and graphene [8, 9].
Materials and Methods The nanotubes "Taunit" or "Taunit-M" (0.5-10 wt.%) or graphene (0.2-6 wt.%) may be used as the carbon nanostructures applied for the modification.
Fig. 3 demonstrates the bench for investigating the characteristics of the heat exchangers based on the different materials.
Geim, Graphene: status and prospects, Science, 324(5934) (2009) 1530-1534
Rao, Experiment study of oscillating heat pipe and phase change materials coupled for thermal energy storage and thermal management, Int.

Failure in quasi-brittle materials, such as concrete and rock, usually develops in a fracture process zone (FPZ), in which dissipative processes takes place.
The total strain energy stored within a specimen of quasi-brittle materials will scale with its size; however, the amount of dissipated energy does not depend on the specimen size but only on the width of the FPZ.
It is essential for a cohesive model to take the frictional dissipation into account as about 50% -75% of the total energy budget in failure process of quasi-brittle materials is dissipated due to friction [10].
Lemaitre (Eds.), Handbook of Materials Behavior Models, Academic Press, Burlington, 2001, pp. 30 – 68
International Journal of Fracture, 57.3 (1992) 221-236

Introduction The progress in materials engineering and welding engineering leads to the creation of new materials and joining techniques [1,2,3].
Wang, Microstructure and microhardness of fiber laser butt welded joint of stainless steel plates, Materials and Design 49 (2013) 761-765
Sunderasan, Effect of weld metal chemistry and heat input on the structure and properties of duplex stainless steel welds, Materials Science & Engineering: A, Structural Materials: Properties, Microstructure and Processing, 2003, vol. 358, no. 1-2, 9-16
Malek Ghaini, Effect of friction stir welding speed on the microstructure and mechanical properties of a duplex stainless steel, Materials Science & Engineering: A, Structural Materials: Properties, Microstructure and Processing, 2008, vol. 496, no. 1-2, 262-268
Papadimitriou, Effect of an electron beam surface treatment on the microstructure and mechanical properties of SAF 2205 joints produced with electron beam welding, Journal of Materials Science, (2012) 47:2110–2121

The Effect of 3D printing Technology on the Future Fashion Design and Manufacturing Bingzi WANG1, a, Ying CHEN2,b 1Shanghai University of Engineering Science Post code: 201620，China 2 Shanghai University of Engineering Science Post code: 201620，China a wangbingzi@126.com, b chenying39@126.com Keywords: 3D print; design and production of clothing; additive manufacturing Abstract.
The integration of new technology will sufficiently used the technology which is not applied fully, for instance, 3 dimensional body measurement technology, and the science and technology enhances in garment design and production chain. 3.3 the limitations and future of 3D printing clothing Of course, according the status of the current 3D printing clothing, there still exist limitations, such as the material and colors are still simple.
[4] Gartner Inc, Shanghai institute of science.
Journal of digital printing, 2011, (10)
Journal of mechanical science and technology, 2008, (9)

. % of the nominal compositions, respectively, were used in the starting materials to avoid reduction of Al and Cd content due to the evaporation during the melting stage.
Muzaffer: Journal of Materials Processing Technology, Vol.169 (2005) No.2, pp. 292-298
Haszleret and et al: Materials Science and Engineering Vol.280 (2000), pp. 37- 49
Zhang: Materials Letters, Vol.57 (2003) No.24, pp. 4083-4087
Rooy: Metals Handbook (ASM International, Materials Park, U.S.A. 1988)

Creep Tests Research on a New Zirconium Alloy for Nuclear Fuel Cladding Tubes Xinming MENG1,a, Fei XUE2,b, Weiwei YU1,c, and Hongmei GUO1,d 1 Suzhou Nuclear Power Research Institute, China, 215004 2Department of Materials Science and Engineering, Tsinghua University, Beijing China, 100084 amengxinming@cgnpc.com.cn, bxuefei@cgnpc.com.cn, cyuweiwei@cgnpc.com.cn,dguohongmei@cgnpc.com.cn Keywords: Nuclear Fuel, Zirconium Alloy, Creep Abstract.
So, Zirconium alloys are widely used in nuclear fuel cladding and core structural materials, as an important application for nuclear materials [1, 2].
Atomic Energy Science and Technology.
Nuclear Engineering and Design (2010) [6] Zhang Junshan, High temperature deformation and fracture of materials, Beijing Science Press, Beijing 2007 [7] E．Kassner,T．A．Hayes, Creep cavitations in metals, J.
International Journal of Plasticity Vol.19 (2003), p.1715-1748 [8] Nie Guiping, An Experimental Study on Creep Behaviors of 2Cr11NiMoVNbNB Steel, J.

The thermoplastic market offers a wide variety of materials for 3D printing.
Ratutskaya, Classification of polymer composite materials used in FDM technology, in: Prospects for the Development of Additive Technologies in the Republic of Belarus, National Academy of Sciences of Belarus, Minsk, 2020, pp. 141-149
Lavrent'ev, Review of consumables for 3D printing by layer-by-layer deposition, International Journal of Humanities and Natural Sciences. 8-2 (2019) 16-18
Tokmakova, Adhesive strength research of film antifriction coatings, Materials Today: Proceedings. (2019) 2329-2334
Reshetnik, Resistance of Materials, fifth ed., Moscow, 2016

Introduction As one of the most important semiconductor materials, ZnTe has a direct band gap of 2.26 eV at room temperature.
As one of the important doping materials for group II-VI semiconductors, many significant research efforts about Cu doped ZnTe films as back electrode materials are reported [7, 8].
Mao: Journal of Crystal Growth, Vol. 310(2008), p. 4481-4486 [7] C.
Hodes et al: Solar Energy Materials and Solar Cells, Vol.62 (2000), p. 295-325 [9] A.
Ali: Applied Surface Science, Vol.180 (2001), p. 73-80 [10] J.