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If this material was milled into thin walled workpieces of 3 to 20 meters, the large deformation was formed in the NC milling process.
As the formation mechanism of residual stress, the material characteristics and the major factor of forming deformation, the mathematic model between finished surface residual stress and milling parameters was established by orthogonal regression testing.
The major parameters of milling cutter were that the tool material was W9Mo3Cr4V, the tool diameter was Ø25，the rake angle was 16°, the clearance angle was 27°, and the helical angle was 39°.the machined material was 7075-T7451 aluminum alloy, and the hardness was HB120.
References [1] Shih A J: Journal of Engineering for Industry. 1996(117):84-93 [2]Ceretti E, Fallbohmer P, Wu W T,et al: Journal of Materials Processing Technology.1996(59), p.169-180 [3]Sasahara H, Tobikawa T, Shirak-ashi:Journal of Materials Processing Technology.1996(62): p.448-453 [4]Wang Hongfeng: Study on the key technology of inhibitory effect on accessory distortion by %C machining process and finite element simulation[Master's degree thesis].
Anhui University of Technology and Science, 2008 [5]Wang Litao: Study on residual stresses and distortion theory of aeronautica frame structure in the milling[Doctoral dissertation].

Effects of K2O on properties of low fluoride content mould flux for high speed continuous casting Yanqing Lu1,2,a, Xing Fang3,b and Guodong Zhang1,c 1School of Materials and Metallurgy, University of Science and Technology Liaoning, China 2School of Materials and Metallurgy, Northeastern University, China 3Anshan Iron and Steel Group Corporation, China aluyanqing77@163.com, basfangxing@163.com, caszhangguodong@sina.com Keywords: K2O, low fluoride content, mould flux, high speed continuous casting Abstract.
Materials and Methods The melting temperature and melting speed measuring instrumentation was used to test melting temperature.
Zhu: Journal of Iron and Steel Research.
Jiang: Journal of Northeastern University.
He: Journal of University of Science and Technology Beijing.

Journal of Materials Science. 39 (2004): 365-367
Materials Science and Engineering A .517 (2009) :180–184
Materials Science and Engineering A. 497, (2008): 408–415
Journal of Solid Mechanics and Materials Engineering. 3 (2009): 425-439
Materials for Mechanical Engineering. 30 (2006): 14-17.

Materials & Design, 26(2005), p.321-326 [4] Alves SM, Schroeter RB, Bossardi JCS, Andrade CLF.
Journal of Materials Engineering and Performance, 22(2004), p.3155-3160 [8] Biermann D,Kirschner M,Eberhardt D.
Cirp Journal of Manufacturing Science & Technology, 5(2012), p.87-101 [12] Biermann Dirk, A.
Key Engineering Materials, 764(2018), p.271-278 [15] Li Weiguo，Shen Xingquan, Yu Shaohua.
Materials Science Forum, 532(2006), p. 945-948 [23] Long Tao, Liu Jingjing，Li Weisheng.Experimental Study on Cutting Force of Gun-drilling Ti6Al4V Titanium Alloy.

Impacts of acid treatment on the characteristics of native corn starch granules Xin Jin 1，2a ,Hou Shuanqing 1,b, Sha Xiaoxu 1,c, Yu Liang 1,d 1State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300160, China; 2Rongsheng Petrochemical Co.
Introduction The development and production of biodegradable starch-based materials have been spurred by oil shortages and the growing interest in easing the environmental burden of petrochemically derived polymers [1-3].
Plasticized starch is one of the most studied materials due to its renewable origin, biodegradability and low cost.
Experimental detail Materials Normal corn starch was obtained from Tianjin Zhongying Company.
[9]L.Hang, J.Zhou, Z.Yang, Journal of South China University of Technology (Natural Science), Vol.26(1998),p.18 （In Chinese）

Chinese Journal of Shanxi Architecture. 32(6), 89--90 (2006)
Chinese Journal of Rock and Soil Mechanics. 27(3), 505--508 (2006)
Advanced Materials Research, Vol. 250-253(2011), p. 1723-1727
Advanced Materials Research, Vol. 255-260(2011), p. 1862-1866
Journal of Shanghai Jiaotong University. 43(6), 976--980 (2009).

Constant variably acceleration motion model of flying plate is proposed and the model formula about the relationship between speed of flying plate and clearance is put forward, which provides theorotical basis for choosing optimum clearance by collision speed of different metallic materials in explosive welding industry production.
The fundamentals of explosion welding, Welding Journal, 2006,85(7):27-29
Anomalous elastic-plastic response to short pulse loading of circular plates, International Journal of Impact Engineering, 2002,28(5):65-91
Strain rate distribution near welding interface for different collision angles in explosive welding, International Journal of Impact Engineering ,2008,35(1):3-9
Explosive welding of metal plates, Journal of Materials Processing Technology,2008,202(1):224-239

In this paper we investigate the phase structure of Sr1−xNdxFe12O19 ferrites prepared by HEBM using steel waste materials to explain the observed variations of their physical and magnetic properties.
Norlarly M, A Study of Sintering Temperatures Variation on Microstructure Development of Strontium Hexaferrite Millscale-Derived,Pakistan Journal of Applied Sciences, 2 (2002) 1092-1095
Journal of Alloys and Compounds, 479 (2009) 638-641
Journal of Magnetism and Magnetic Materials, 242-245 (2002) 1270-1276
Journal of Magnetism and Magnetic Materials, 324 (2012) 2239-2244.

Introduction Polyurethane(PU) sponge is a kind of low density PU foams(usually lower than 0.25g/cm3), is widely used for shoes and packing materials and so on for its specific strength and good resistance to shock, However, PU sponge is insulating with volume resistivity of about 1012Ω·cm.
However when the materials’ volume resistivity is decreased to 1010Ω • cm, it is easy to achieve antistatic requirements.
Materials EG were provided by Xiamen KNANO Graphene Technology Corporation Limited(China).
PU/EGp composite antistatic sponge can be widely used for packing materials for the electron components and so on in future due to its moderate cost and good mechanical and antistatic property.
Acknowledgement This work was funded by the Key Natural Science Foundation of Fujian Province (E0820001) and Science Foundation of Xiamen(3502Z20103032).

Jugjai, Effect of tube length on combustion characteristics of a self-aspirating radiant burner (STRB), TSME Journal of research and applications in mechanical engineering. 1 (1997) 19-23
Amtachaya, Comparison of solution of radiative heat transfer equation in porous materials solving by the equation of formal solution and the P1 approximation equation, SiamU Journal. 1 (2008) 20-30
Kamiuto, Improvement of the P1 Appoximation in rediative transfer, JP journal of Heat Mass Transfer. 1 (2007) 63-74
Poowadin, Heat transfer enhancement of flow insulator by combined stainless steel fibrous and wire net porous materials, IOP Conf.
Series: Materials Science and Engineering. 297 (2017) 1-9.