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An Investigation of factors affecting and optimizing material removal rate in computer controlled ultra-precision polishing Lai Ting Ho1, a, Chi Fai Cheung1,b , Liam Blunt2,c , Shengyue Zeng2,d 1Partner State Key Laboratory of Ultraprecision machining Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, HK 2 Centre for Precision Technologies, School of Computing and Engineering, University of Huddersfield, Huddersfield, UK amflesley@polyu.edu.hk, bBenny.Cheung@polyu.edu.hk, cl.a.blunt@hud.ac.uk, dzsyhud@hotmail.com Keywords: computer controlled Polishing, ultra-precision machining, mechanical polishing, process optimization, ANOVA, Taguchi Method, Abstract.
To experimentally study the factors affecting the surface generation in CCUP, the Taguchi method was used to design the experiments.
With the use of the Taguchi method, the number of experiments in a particular investigation of the influence of different factors can be significantly reduced.
However, there are many different workpiece materials and due to their material properties, the optimal parameters vary with the materials being polished.
The results of this study provides an important means for better understanding the effect of factors affecting material removal rate in CCUP.

Kennethw, Ahmed and Yue Q.R etc.[1,2,3] studied experimentally the durable properties of FRP in various corrosive environment .Compared with the experimental study, the theory research is relatively few.
Model correction coefficient of damp heat factors.
Acid corrosion is one of the important factors affecting the durability of FRP, Model correction coefficient can be obtained by acid corrosion in acid environment of the pH value
Factors affecting the durability of FRP is diverse in different area.
Mechanical properties and durability of FRP and evaluation of durability of reinforced concrete structures[D].Beijing: Central Research Institute of building and Construction CO.

Elastic Properties of Microwave Sintered Hydroxyapatite F.A.
Under the set of controlled parameters investigated, green density was the most significant factor affecting E.
Factors Level 1 Level 2 A.
Properties of the starting powder.
The Taguchi DOE method showed that, for the selected control factors, the green density is the significant factor most affecting the Young's modulus.

The results showed that the selected deacidification methods affect the surface-molecular and structural properties.
Moistening and speed capability of the porous material to absorb water vapour is affect by many factors.
The main factors influencing this process are temperature, pressure, and relative humidity of the environment.
In addition to the optical and mechanical properties, the chemical properties were measured.
The properties on hypermolecular level, i.e. microstructure and surface-molecular properties of the pore walls were compared with the chemical, mechanical and optical properties of these materials.

Analysis of Influencing Factors on Mechanical Properties and Anisotropy of Attapulgite/NR Composites Xiaolong Lua, Qingguo Tangb, Jinsheng Liang, Yan Ding and Hao Guo Institute of Power Source & Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China aol_x_lo@163.com, bqingguo_tang@hebut.edu.cn Keywords: attapulgite, nature rubber, composites, mechanical properties, anisotropy Abstract.
Results indicated that mechanical properties were better when the OAT content is 50 phr and thin-passing is 20 times, meanwhile, the longitudinal and transversal tensile strength of OAT/NR composites were 17.010.5 Mpa and 14.180.5 Mpa respectively.
The mechanical differences of OAT/NR composites in L and T direction are analyzed and the anisotropy of composites was studied, based on the relative difference values ε of mechanical properties of composites.
Therefore, the mechanical properties and anisotropy of OAT/NR composites can be improved obviously by heat treatment to OAT/NR blend.
Proper mixing technological parameters and the OAT fibers content in rubber are also very critical to the mechanical properties and anisotropy of OAT/NR composites.

A set of various factors and phenomena defines the quality of welded joints.
It testifies to a better quality of shielding and smaller probable changes in symmetry of structure formation and mechanical properties of the heat affected zone.
A set of various factors and phenomena defines the quality of welded joints.
This fact asserts better quality of shielding and the lowest possible change in the symmetry of structure formation and mechanical properties of heat affected zone.
It testifies to a better quality of shielding and smaller probable changes in symmetry of structure formation and mechanical properties of the heat affected zone.

Mechanical properties of tungsten heavy alloys are dependent on many factors including the purity of the raw materials, their tungsten content, manufacturing parameters and the microstructure of the final compact.
It was shown that the mechanical properties of the alloys, and especially their ductility, are harmed when tungsten grains are contiguous.
The mechanical properties of tungsten heavy alloys are determined by various factors; in particular, the strength of W/W and W/matrix interfaces [4].
Microstructural factors, such as tungsten particles size, matrix volume fraction and tungsten-tungsten contiguity, affect the mechanical properties of tungsten heavy alloys [5].
The matrix volume fraction and contiguity are the most important microstructural parameters affecting the mechanical properties of liquid phase sintered tungsten heavy alloys.

Effect of Compatibilizing Agent on Mechanical and Thermal Properties of Wood-Plastic Composites Wen Lei1, a, Xiao-yan Ding1, band Chi Xu1, c College of Science,Nanjing Forestry University,nanjing210037,China aleiwen67@163.com,bnjfu-polymer@163.com,cnjfu01@21cn.com Keywords: wood-plastic composite; mechanical property; thermal property,compatibilizing agent Abstract.
The effects of the content of MAPP on the mechanical and thermal properties of WPC were investigated.
Many factors have effects on the life, among which, mechanical and thermal properties are two key ones, so it is very significant to improve the mechanical and thermal properties of WPC.
In this study, MAPP is selected as the compatibilizing agent between WF and PP, and the effects of the content of MAPP on the mechanical properties of WPC are shown in Fig.1.
However, the modulus of the composite is generally affected by many factors, such as the length, orientation and volume fraction of the fiber as well as the porosity inside the fiber[5], thus the variation of the modulus is accordingly uncertained, and always no definite tendency can be used to describe the changes for all kinds of moduli.

The results indicate that steel fiber is one of the most important factors affecting compressive strength and shrinkage, and polypropylene fiber is one of the most important factors affecting flexural strength and shrinkage of cement mortar.
The properties of all the fibers are shown in Table 1.
There are many factors that can affect the cement mortar’s mechanical properties and shrinkage.
In order to obtain excellent mechanical properties and low shrinkage rate, orthogonal experiments were adopted to optimize the mix proportion.
Considering the effect of factors on the properties comprehensively, the optimized mix proportion of hybrid fiber reinfored cement mortar is confirmed as follows: steel fiber fraction (by volume) is 1.0%, polypropylene fiber fraction (by volume) is 0.6% and silica fume fraction (by weight) is 12%.

Effects of Electromagnetic Pump Casting on Microstructure and Mechanical Properties of ZLSi9Mg Casting Aluminum Alloy Jingzhi Danga, Jing Yang, Jun Cheng School of Materials Science and Engineering, North University of China,Taiyuan 030051,China a wxdjz11@nuc.edu.cn Keywords: ZLSi9Mg aluminum casting alloy; Electromagnetic pump; Microstructure; Mechanical property; Fluidity Abstract.
Range analysis shows that the main factors are electromagnetic intensity, current and time and 200A, 291mT, 25min is test to be optimum parameter.
Variance analysis shows that electromagnetic induction intensity greatly affect the mechanical property of cast and current has certain effect and time does not no effect.
From the property of the alloy, it is believed that viscosity is a main factor affecting the flowing power.
The amount and property of inclusion are important factors affecting the viscosity of alloy.