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Therefore, the most important properties are selected in terms of shape, size and the accuracy of mouldings and in terms of the size of the production batch.
Required surface properties of forms include surface quality, corrosion resistance, fatigue resistance, wear resistance, the ability to easily remove mouldings, and a reduced tendency to create sediments in the form.
The conditions affecting wear are as follows: § External conditions include the working environment (temperature, pressure, chemical activity),the working medium (flow rate, particle content, hardness, shape and the numbers of particles, and the conditions of impact on surface),and the dynamic loading of functional surface
The material properties of Ultradur B430 G4 (20% of glass filler) are as follows: density 1,45 g/cm3, yield strength 120 MPa, Water Absorption 0.4 %, Melt Flow 20.3 g/10 min.
Summary This paper presents the results of the tribological properties of selected types of tool steels.

Eccentricity is the important factor to affect the carrying.
When other factors remain unchanged, the change of oil supply pressure will lead a change about bearing flow.
With the oil temperature increasing, the viscosity of the oil reduces, and the flow properties of oil will be improved, so that the friction loss of bearing will reduce, and the heat will reduce.
Based on these factors, four factors and four-level orthogonal test can be obtained, and experimental results are shown as Table 2.
The P-value test was used to determine which factors are significant in affecting the results.

The hydraulic materials, such as Ca (OH)2, ettringite and calcium silicate hydrate and so on, which are generated from the hydration reaction, cause the treated products to have good mechanical properties[8].
PFA is similar pozzolanic materials, with inorganic ion-exchange properties and adsorption decolorization, it can absorb pollutants in sludge.
Results and Discussion Orthogonal Experiment The mass fraction of the cement, the PFA and the cinder, as well as the conservation days were the factors in the orthogonal experiment.
Condusions a) After solidifying by using cement, fly ash, cinder and curing for formation, the textile dyeing sludge had good physical and mechanical properties.
b) The compressive strength of cured block increased as the content of cement and cinder increased, which shows that the addition of cement and cinder was beneficial to improvement of the mechanical properties of sludge solidified block.

Introduction As a new kind of lightweight material that integrates structure and high vibration-damping performance, the magnesium alloy is widely used for manufacturing of various mechanical parts, especially vehicle parts.
For damping mechanism of the magnesium alloy, a recent study shows that damping of the magnesium alloy at room temperature is dislocation damping, and breeding and networking process of the dislocation inside the magnesium alloy under shear stress are major factors of affecting its damping characteristics[3].
References [1] MI Lin,TIAN Tie,MAO Xingzi: Journal of Mechanical Engineering. vol. 45(2009), pp.272-278
[3] TIAN Tie,MAO Xingzi,MI Lin:Materials for Mechanical Engineering. vol.35(2011),pp.1-3,7
Beijing: Science Press, 1983.The micro theory of metal mechanical properties

Surface integrity, comprising of surface roughness, material microstructure transformations and residual stresses considerations, plays an important role not only on the surface quality of the machined workpiece [2-5] but also on the properties and the life-cycle of the component and the assembly that incorporates it, an example being fatigue life [6].
Residual stresses character, i.e. they are either tensile or compressive, magnitude and extend within a workpiece depend on many variables; cutting conditions, material properties and cutting tool characteristics are commonly analyzed in the relevant literature.
They concluded that depth of cut does not affect residual stresses.
On the other hand, rake angle variation significantly affects residual stresses.
Demircioglu, The factors affecting surface roughness measurements of the machined flat and spherical surface structures - The geometry and the precision of the surface, Measurement 44 (2011) 1986 – 1999

Email: Haslan@sirim.my, mawarni@sirim.my Keywords: Anodizing, Laminates Composites, Mechanical Properties Abstract.
FMLs, are well-known because of its uniqueness that combine of the best properties of metal and composite which resulted in good fatigue characteristics as well as their lower density.
A contact angle readings can be affected its surface roughness.
Mechanical Test.
[3] M.Mohamad, H.F.A.Marzuki, E.A.E.Ubaidillah, M.F.Z.Abidin, S.Omar, I.M.Rozi (2012) Effect Of Surface Roughness On Mechanical Properties Of Aluminium-Carbon Laminates Composites.

The velocity and concentration of sand/dust particles contained in the air flow are the key factors which affect the quality of sand/dust test.
In a certain range, the velocity difference between sand/dust spray flow and air flow affects the concentration distribution uniformity slightly.
Introduction Sand/dust is one of the important environmental factors which causes electronic and mechanical equipment no longer to have effect.
All these factors coincide with the discrete phase model’s characters of the Fluent, so discrete phase model is adopted in this simulation.
Nrmeriacl Study of the hydrodynamics Properties of U-Beam Inertial separator [J], Power Engineering, 2002,22(5), 1936-1940 [5] Tan Xiaojun, Chen Lihua, Li Hongjian, Numecical Simulation of Gas-solid two-phase Flow in Semiround-pipe Inertia Separator.

The creep of steel bars, bond slip between steel bars and concrete, transformation of material properties were considered in the force analysis.
Temperature analysis The thermal properties for steel bars and concrete (e.g. conductivity, specific heat) presented by Lie and Denham [5] are adopted.
The modified expression of concrete thermal properties proposed by Hamarthy [6] is used at elevated temperature.
The user subroutines can be incorporated into ABAQUS to consider the creep of steel and transform the material properties
Denham: Factors Affecting the Fire Resistance of Square Hollow Steel Columns Filled With Bar-Reinforced Concrete Int.

High strength, low thermal conductivity, high ductility and a tendency to high firming austenitic stainless steels are the main factors that make their machinability difficult.
As a result of deformation heating and heat, which always accompanies the process of cutting, are the tensions in this layer and change its physical and mechanical properties.
Fixture for the cutting tool: high precision hydraulic clamping head, the workpiece fixture: mechanical vise.
Increased demands on the quality of holes calls for considering a series of factors, for example: the machine for the cutting process must be in good condition.
Based on the results from our experiments and practical experience, in conclusion we can state that the following belong among the primary factors having an impact on increasing productivity: · machine operator - worker, · machine tool level, · cutting tool and its anchoring, · work piece, material properties and anchoring method, · economic costs on operation, · economic costs - input costs.

Ab initio calculation has evolved into a powerful tool that is widely used in condensed matter theory for the calculation of electronic, magnetic, and structural properties.
Our final demand in mechanical properties such as tensile strength, yield strength, Figure 1 The balance between specific tensile yield strength and elongation for commercial alloys [1] and Mg97Zn1Y2 [4].
The misfit strain field allows solute atoms to affect the motion of dislocations.
The atomic size factors for many metallic solid solutions have been determined and are given in tables published by King [14].
The atomic size factors for non-equilibrium supersaturated solid solutions, however, are not generally available.