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Vickers hardness testing and tensile testing was employed to characterize the mechanical properties of the alloy with various thermo mechanical treatments.
In the present investigation NA for long time has influenced the mechanical properties of the alloy significantly.
In contrast Chang et al. [11] have reported positive effect of natural pre-ageing on the mechanical properties of Al-Mg-Si alloys.
Tensile properties The tensile properties of the Al 6061 alloy after different PA and NA treatments are presented in the figure 10(a).
Alloy with PA and NA has resulted superior mechanical properties over simple cryorolled material after solution treatment.

Finite Element Analysis To obtain the mechanical properties of Ti-0.2Pd, a tensile test was conducted and flow stress equation was induced from the mechanical properties.
The flow stress equation and main properties of Ti-0.2Pd were shown in Equation 1 and Table 1 respectively.
Fig. 4 Effect of friction factors on reduction in thickness Fig. 5 Tube diameters from simulation and experiment Table 3 shows the data of simulation result in case of friction coefficient 0.3.
It could be judged that it adversely affected the proper mechanical properties of the tube [1, 2, 4] and that the compressive stress on the internal surface was too high.
International Journal of Mechanical Sciences, 70(null), (2013), p.69–78.

The most effective machining strategy is determined by identifying the different factors affecting the WEDM process, and seeking the different methods for obtaining the optimal machining condition and performance [1].
The important properties of the matrix and reinforcements are shown in table1.
For experimentation, Taguchi’s orthogonal array was used with four factors.
The factors considered for the experimentation are current, Pulse-ON, Pulse-OFF, and Servo voltage.
The Servo voltage is the most important parameter to affect the MRR which is followed by Pulse off time.

The microstructure and properties were analyzed for the prepared Ag-SnO2 electrical contact materials.
Previous research [7, 10] has revealed that homogeneous distribution of SnO2 in Ag matrix is beneficial to good electrical and mechanical properties.
The influence of SnO2 particle size on microstructure and properties of the electrical contact materials was systematically investigated.
However, high hardness is detrimental to mechanical processing.
Li, Microstructures and properties of silver-based contact material fabricated by hot extrusion of internal oxidized Ag-Sn-Sb alloy powders, Mat.

Produce cross cracks mainly due to the following factors.
When the vehicle impact load is too large, corner cracking, thereby seriously affecting the ride quality and durability of the pavement.
The surface loose flaking generated mainly due to the following factors.
According to the different mechanical properties of steel fiber in concrete, the strengthening effect is also different.
Because China has not yet specifically formulated for the basic requirements of the basic characteristics of the fiber reinforced concrete rigid pavement fiber concrete pavement design theory and methods, thus affecting the application of fiber reinforced concrete in road works.

The main factors cause the situation above is the bonding temperature stride across the a→β transition temperature of 980℃[12].
These factors might lead to Ti diffused more fully than other elements.
But there was many dendrites in the base metal which might change base metal property.
Review: synthesis, properties and applications of titanium aluminides[J].
Microstructure and properties of transient liquid phase diffusion bonded joints of DD3 single crystal superalloy[J]．

So mastering the dynamic distribution law of temperature field in the process of sintering gauge for the reasonable control of laser sintering forming process, and improving the mechanical properties of the sinter forming is of a practical guidance meaning by powder sintering temperature field simulation experiment.
(3) (4) Thermal conductivity of powder bed is the decisive factors in laser sintering, which is determined by the above formula.
Selection and load of laser heat source, thermal physical property parameters calculation of composite powder, and the set of boundary conditions are the main factors wood powder /PES composite powder SLS forming.
The gap of sintering part is big, causing the decrease of sintering parts mechanical properties and dimensional accuracy.
Laser power is too large , sintering temperature is high, local sintering areas produce burnt phenomenon, powder of sintering parts size edge melt and bond surface of sintering parts, also causing the mechanical properties of sintered parts and dimensional accuracy.

The chemical components and mechanical properties of SUS301L are given in Table1.
Chemical components and mechanical properties of SUS301L[7] Chemical components /% Mechanical properties C Si Mn P S Ni Cr N σs (Mpa) σb (Mpa) δ/% HV <0.030 <1.00 <2.00 <0.045 <0.030 6.00-8.00 16.00-18.00 <0.20 >685 >930 >20 <218 A continuous wave (CW) disk laser (Trudisk4002) in TEM00 mode was used with the power of 4 kW and a beam quality of 8 mm*mrad.
Test Methods: orthogonal test pilot. 3 factors A, B, C with 3 levels (Table2) were selected.
The factors and levels of the laser welding experiment Levels Factors Experiment spots A B C Laser power (kw) Welding speed(m /min) Focal position(mm) 1 1.5 1.7 0 A1B1C1 A1B2C2 A1B3C3 2 2.0 2.2 0.5 A2B1C2 A2B2C3 A2B3C1 3 2.5 2.7 1.0 A3B1C3 A3B2C1 A3B3C2 RESULTS AND DISCUSSION.
And k=K/3 is to compare the factors.

One of the key issues for work rolls is the surface roughness which affects the rolling stability and surface finish of the strip.
The refining of grains inside the structure can improve the mechanical properties of the roll, and an increase of carbide can increase the surface hardness and abradability of the roll.
It reveals that the major wear of the roll is mechanical wear.
The result shows that the main factor of roll wear is adhesive.
Xue: China Mechanical Engineering Vol. 11 (2000), p. 77 [3] F.P.

High speed cutting is an important means to improve the efficiency and the quality of machining mold steel, but the tool wear is one of the key factors restricting the increase of the cutting speed, leading to higher requirements for cutting tool materials.
The physical properties of workpiece material at room temperature are listed in Table 2[6].
And it changes the chemical composition of the material, which directly affect the mechanical properties and accelerate the tool wear in the cutting process.
[6] Metals handbook: Properties and Selection: Iron and Steels.
Ante: Mechanical and structural properties of various alloyed TiAlN-based hard coatings.