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Processing experiments of compound finishing are carried out to study the effects of the main processing para- meters, including the particle size, the ultrasonic vibration amplitude, the minimum gap between the tool head and workpiece and the pulse voltage, on the material removal rate and the surface quality for hard and brittle metal materials.
So it decrease the material removal rate and surface roughness.
The material removal rate and the surface quality for hard and brittle metal materials are studied.
Modeling and analysis of pulse electrochemical machining (PECM).Transactions of the ASME-Journal of Engineering for Industry, 1994, 116(3):316-323 [3] J.
Journal of Harbin University of Technology, 2008, 30(1) :140-143(In Chinese).

Introduction Plasma technologies are widely used in modern micro and nanotechnologies.Plasma enhanced chemical vapor deposition (PECVD) orremote plasma enhanced chemical vapor deposition (RPECVD), plasma etching methods are widely used to create new materials, modify the surface of materials, obtain the structures of elements of sensing microelectromechanical systems (MEMS), simplify and improve photoresist removal processes [2-4, 11, 15-17, 19-26].
PECVD processes, as compared with conventional vapor deposition methods, allow improving the obtained characteristics of materials by reducing temperatures, increasing adhesion of materials to the substrate.
Part II: effect of nitrogen plasma parameters on layer characteristics //Advanced Materials for Optics and Electronics. – 1998. – Т. 8. – №. 1. – С. 23-29
Developing the process for through-etching of single-crystal quartz in inductively coupled plasmas //Materials, Methods &thechnologies. – 2018. – Т. 12. – С. 286-294
The effect of a lithium niobate heating on the etching rate in SF6 ICP plasma //Materials Research Express. – 2019

Methods Materials.
Koç, Investigation of size effects on material behavior of thin sheet metals using hydraulic bulge testing at micro/meso-scales, International Journal of Machine Tools & Manufacture 48 (2008) 1014–1029
Xia, Effect of EDT surface texturing on tribological behavior of aluminum sheet, Journal of Materials Processing Technology 211 (2011) 1643– 1649
Hutchings, Effects of die surface patterning on lubrication in strip drawing, Journal of Materials Processing Technology 209 (2009) 1175–1180
Lin, Effect of Grain Size on Micro Ball Punch Deformation of SUS 304 Stainless Steel, Advanced Materials Research 579 (2012) 445-452.

This process is accomplished by heat passing through the materials.
[9] Zhang Tiejun: Mechanical Engineering Materials (Peking university press,Beijing 2010), p.138-139
[10] Chen Yirui: Basic materials and new materials(Tianjin university press,Tianjin 2010), p.48-50
[11] Gu Zhuoming: Marine engineering materials(China communication Press,Beijing 2010), p.58-62
[12] Xu Xiaohong: Foundations of Materials Science and Engineering(Higher Education Press, Beijing 2008)

Oxidation reaction occurs on the anode, and the workpiece materials are dissolved.
All materials are set at the corresponding surface of the model, and the free meshing grid is selected.
Xu: Journal of South China University of Technology (Natural Science Edition) Vol.37 (2009) No.4, p.66-69 [6] J.
Kozak: Journal of Materials Processing Technology Vol.109 (2001) No5: p.354-359 [7] A.
Zybura-Skrabalak: ASME J. of Manufacturing Science and Engineering, PED (1993) No.64, p.713-718 [8] J.Kozak: Journal of Materials ProcessingTechnology Vol.109(1-3) (2001), p.354-359 [9] J.W.

However, titanium alloy belongs to typical difficult-to-cut materials [1-2] due to the following machining characteristics: (1) Strong chemical activity.
The influence of powder metallurgy materials science and engineering. 6 (2010) 586-592
A study on tool wear prediction in ultrasonic vibration turning of tungsten carbide, Key Engineering Materials. 693 (2016)1228-1234
Journal of Materials Processing Technology. 139 (2003) 332-336
Jounal of Materials Processing Technology. 84 (1998)122–129

This is because: materials can not absorb enough heat to puffing if the barrel temperature is too low, while materials will be coking if the barrel temperature is too high. 2) with the rise of the feed rate, the specific volume drops sharply.This is because: the residence time of the melt materials in the barrel decreases with the increase of the feed rate, which causes to inadequate energy exchange between materials and the outside, thus leading to uneven product structure and bad puffed quality of the extrusion product. 3) moderate screw speed leads to better specific volume.
This is because: when the screw speed is small, the screw and barrel wall’s shear on the material is not enough, which leads to shrivelled product. when the screw speed increases, the residence time of the material in the barrel decreases, which leads to inadequate time for the material to absorb enough heat, and thus extruding bad puffed product.
Journal of Food Engineering, 67 (2005) 317-324 [2] Chiwu BU, Kefei XU,Jiayu TAN.
Proceedings of ICMEM2007 [3] Friedrich Meuser and Norbert Gimsmler, “A Systems Analytical Approach to Extrusion Food Extrusion Science and Technology,” New York: Marcel Dekkerinc, 1992:619 [4] P.O.
Animal Feed Science and Technology, 129 (2006) 116-137 [5] Tang Q J.

Acknowledgements This work was financially supported by the major projects of national science and technology (2011ZX04002-081).
International Journal of Machine Tools and Manufacture,2000,40( 9):1257 -1284
Simulation of thermal behavior of a CNC machine tool spindle[J].International Journal of Machine Tools&Manufacture,2007,47( 6) :1003 -1010
International Journal of Machine Tools&Manufacture, 2004,44( 7 /8) : 749-758
Thermal characteristics of the spindle bearing system with a gear located on the bearing span[J].International Journal of Machine Tools & Manufacture, 38(1998):1017-1030 [6] Yun W S, Kim S K, Cho D W, “ Thermal error analysis for a CNC lathe feed drive system,” International Journal of Machine Tools & Manufacture. 1087-1101 (1998), p. 39

Vector of basic random variables X=[r M b h d]T, r, M, b, h, d showed respectively strength of material, bending moment, the section size of design.
Acknowledgements This work was financially supported by China Postdoctoral Science Foundation funded project and the National Natural Science Foundation of China.
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Mourelatos: ASME Journal of Mechanical Design Vol. 130 (2008), p. 1 [4] Y.
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Polit, On the numerical investigation of cardiovascular balloon-expandable stent using finite element method, Computational Materials Science 79 (2013) 326-335
Mechanics of solid materials.
Journal of the Mechanical Behaviour of Biomedical Materials. 2009;2:210-216
Fatigue and fracture in materials used for microscale biomedical components.
Yuan, Computational Materials Science 46 (2009) 572–578