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Introduction In sheet metal forming processes, the geometrical accuracy as well as the final mechanical properties of the finished part is influenced by diverse factors (Fig. 1).
The functional applications of these elements such as fixation, motion and load transmission require compliance with high geometrical accuracy as well as high precision regarding the final mechanical properties of the part.
Affecting the process stability, the machine properties need to be considered in the process layout, otherwise leading to non-compliance with demanded quality tolerances of the manufactured parts. 100 FZ FY FX DC04 0 4 8 12 16 20 24 28 32 36 punch stroke [mm] forming force [kN] 0 -100 -300 -400 -500 -600 -700 -800 -200 FZ FY FX DP600 0 4 8 12 16 20 24 28 32 36 Figure 4.
The defined force application allows an accurate determination of the machine properties.
To improve the computational accuracy of process modelling a suitable approach has been presented to take into account the machines properties.

During the engineering survey and design and construction practice, in order to study the slope stability analysis of slope deformation and destruction or judgment, we must study and learn the basic mechanics properties of rock, such as rock soils, internal friction angle and cohesive strength and other mechanical parameters first; then, we need identify and verify the slope structure conditions and spatial morphology, such as slope geotechnical structure discontinuity and combination of features; Combined with the slope rock and soil mechanics properties and slope structure conditions, to analyze the limit slope height and the limit slope angle.
According to the engineering geological and geophysical data, field outcrop on UDL Archeozoic Fuping group put a shop group (Ar3f ) biotite plagioclase gneiss, from top to bottom has weathered, strong weathering, weathering in three kinds of soil properties.
When the natural disaster happens, rainfall and rainfall intensity are the main factors which affect it.
If we do not take the two factors’ effects into consideration, the calculated results would have a big difference with the actual engineering, which will cause problems in engineering easily.
The loss of economy, life and property is inestimable.

During the applying process, the size and morphology of the silver nanoparticles are important factors which influence their properties.
The effects of the morphology of the silver nanoparticles on their properties are discussed, and the further development of their application in solar cells is prospected.
Moreover, the morphology of the reaction product of silver nanoparticles can be controlled by adjusting the microwave power and the heating time and other factors.
In this process, each step will affect the final conversion efficiency of the solar cell.
As can be seen, the size and morphology of the silver particles are the key factors that affect its performance.

As declared in [8], there is a gap according to the clarification of the effectiveness of lithium compounds on macroscopical properties of cement such as workability and mechanical properties.
The conclusions in this paper may be useful to provide some evidences for adjusting the workability and mechanical property of concrete during concrete mix design.
The effect of lithium-based admixtures on the properties of concrete[].
The mechanical and microstructural properties of LiSO4, LiNO3, Li2CO3 and LiBr added mortars exposed to alkali-silica reaction [J].
Rheology and early age properties of cement systems [C].

Many studies on pipeline steels have shown that impact absorbed energy and strength are affected by microstructural factors such as the type, volume fraction, and shape of secondary phases, grain sizes, and matrix structures.
However, for the ultra-low carbon bainitic steel with the microstructure of the FGBA and GB, the correlation between the microstructural factors and low temperature properties, especially the mechanism of low temperature microcrack origin, have little been studied.
Tensile properties and Charpy impact properties were examined, and the correlation between the microstructural factors and low temperature properties was investigated.
Fig.2 The microstructure of the ULCB rolled steel (a) (b) Fig.3 The schematic illustration of ledge mechanism (a) and coarse ledges observed by TEM (b) 3.2 Mechanical properties The tensile properties of the ULCB steel is given in table 2.
The effects of microstructure with the FGBA and GB on mechanical properties were investigated

These influences have relationship with many factors.
By comparing and evaluating the main influence factors, provide basis for choosing the best carburizing and quenching process.
Affecting Factors Heat treatment deformation of gears is affected by many factors, concluded to the following four aspects.
Obviously, choose appropriate quenching oil is very important to control the deformation properties after processed.
Due to the varieties and properties of quenching oil used are different, get different results is understandable.

Residual stress theory.It is a theoretical and not consider shrinkage factor residual stress theory and consider shrinkage factors, amended residual stress theory.　
It combines the characteristics of rubber and thermoplastics, having a good appearance of texture, excellent abrasion resistance ,tensile properties and adhesion properties, as well as suitable for printer board.
Effect degree analysis of process parameters on the warpage The experiments studied on warpage impact factors of printer board with metal-insert,numerical simulation and theoretical analysis,.Effect degree of products warpage trend in different locations and process parameters are different.In order to get comprehensively the primary and secondary influence factors of warpage on the products,introduce dimensionless factor λ and influence coefficient η,as given below[8]: (4) where, and are the value and initial value of affecting factors respectively, and are the different positions and initial different positions warpage amounts respectively,unit mm.
Through the above analysis, each factors impact coefficient map of product warpage is shown in Fig. 9.
the four factors affecting products warpage, the melt temperature had the greatest influence, followed by the mold temperature and packing pressure, packing time minimal effects on products warping deformation.

In many cases, the parts are under serious load, high heat load and surface defects caused by electrical discharge machining, become the main factors of part performance.
Properties of workpiece material material density Specific heat capacity thermal conductivity Melting point 45 steel 7833 448 70 1515 Fig.1 Schematic diagram of surface morphology experiment Fig.2 The workpiece surface topography As for the pits formed by the melting of splash erosion (as 1 shown in figure 2 and) , the discharge area is very small, the instantaneous current density in the discharge path is great.
Micro cracks and micro holes can seriously affect the workpiece bending strength as well as the service life of the workpiece [6].At the same time, in the region of the heated but not melted , the physical and mechanical properties of artifacts will be affected to a certain extent.
Fig.5 The morphology of carters in different eletrical parameters Conclusion (1) Pits formed by the single pulse effectively discharge determined the final features of the surface morphology, but also determined the surface quality and mechanical properties of the workpiece
Int J Manuf Technol, 2004 [2] Liu,J.C., Zhao,J.Q., Special ProcessingBeijing: mechanical industry press, 1999 [3] Y.H.

Ruan1,2,d 1School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China 2Zhenjiang V-Zenith Laser Technology Co.
In order to enhance mechanical property and restrain crack growth of 6061-T6 aluminum alloy, laser shot peening (LSP) was employed to induce compressive residual stress and plastic deformation on the surface of metal.
LSP process involves many factors, if every influencing factor estimated experimentally, it will be time consuming and costs a lot.
The analysis of fatigue crack growth properties after LSP is on the basis of residual stress field, the procedure consists of two steps: simulation of residual stress field induced by LSP and numerical analysis of fatigue crack growth performance.
According to fracture mechanics, fatigue crack growth rate, which is mainly affected by the elastic modulus (E), stress intensity factor threshold value () and fracture toughness, is an important parameter to determine fatigue behavior of specimens.

The surface quality and delamination factor are dependent on many factors such as the cutting parameters, tool geometry, tool wear and cutting forces.
The drill geometry is considered to be the most important factor that affects drill performance.
Mechanical properties in the ABAQUS analysis are from experimental tests.
The mechanical properties of Toray-T800S are given in Table 1.
Table 1 Mechanical properties of Toray-T800S Work material Critical crack propagation energy [GIC/ J/m2] Elastcity modulus [E/GPa] Ply thickness [h/mm] Poisson ratio [ν] Toray-T800S 340 294 0.1875 0.3 Drilling test.