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Results show that the cutting contact curve of cutter affects directly the process of high speed ball-end milling, fuzzy and uncertain properties exist in the evaluation for the cutting track of cutter.
Experiment results show that fuzzy and uncertain properties exist in the multi-factor evaluation for the cutting tracks of high speed ball-end milling cutter.
U is a set of evaluation factors, V is a set of evaluation, and R is the evaluation matrix.
(10) where U is the first-ply set of evaluation factors, Ui is the second-ply set of evaluation factors, uij is the evaluation factor, and vg is the cutting track of cutter.
Research on the cutting track of cutter indicates that fuzzy and uncertain properties exist in the evaluation for the cutting tracks of high speed ball-end milling cutter.

Based on comprehensive quality management theory, we have studied quality factors of fly ash high-performance concrete in construction, put forward the method of beforehand control, course control and afterwards control.
Raw material quality directly affects the new mixing concrete and hardening coagulation concrete properties, which is also the basis of high-performance concrete proportioning design.
Fly Ash Concrete Properties Affecting Factors Research Raw material selection and preliminary mixing ratio design.
The physical and mechanical properties of cement testing results see table 1.
The influence of fly ash content on the concrete mechanical property is shown in table4.

This article describes the possible effect of heat treatment to the properties of springs made from VDSiCr.
Reduction of residual stresses on springs made from oil hardened and tempered wire, d=6mm, w=5 and nt=6.5 after 22 different heat treatments Mechanical properties of oil hardened and tempered wire The mechanical parameters of spring steel wires vary due to heat treatment.
As to be seen in Fig. 4 the heat treatment influences not only the residual stresses but also the mechanical properties of the wire material.
Afterwards the spring properties were tested.
In the heat treatment of springs from oil hardened wire material with temperatures exceeding 400°C must be noted, that the strength properties of the springs are significantly affected and the heat treatment time greatly affects the spring properties.

Lithium content in Mg-Li alloy is a key factor affecting the microstructure and properties of this series alloys.
The mechanical properties of traditional Mg-Li alloys are lower than the usual Mg alloys.
What’s more, Sr addition can improve the mechanical properties of Mg alloys especially the high temperature properties [10].
At last the mechanical properties of as-cast Mg-9Li-3Al-xSr alloys were tested.
Mechanical properties.

The elongation was quantitatively related to the three microstructural factors; i.e. the width of PFZ, size of grain boundary precipitates and the level of proof stress, to predict ductility of the alloys with known microstructural factors.
To control microstructures in the vicinity of grain boundaries is important because they are believed to affect greatly the mechanical properties of the alloy [1].
We reported that microalloying of Ag is quite effective to modify the microstructures and improve the mechanical properties of the alloy [2, 3].
Thus, it was clearly found that the similar improvement of mechanical properties could be achieved by two-step aging as is the case of Ag addition.
Quantitative correlation between tensile properties and microstructural factors.

In recent years, at home and abroad has been beginning the study of how the freezing and thawing affect the soil mechanical properties, the study generally agreed that the freezing and thawing would cause the attenuation of the soil strength.
Su Qian etc. [4] thought that the soil physical and mechanical properties, such as the water content, density, cohesion, internal friction angle, was stabilized after 10 freezing and thawing cycles.
In this paper, base on the indoor silty soil test under the effect of freeze-thaw cycle, explores the impact of the freeze-thaw cycle on silty soil mechanical properties and analyses kinds of various factors, obtains some regular rules.
Physical-mechanical properties changes of Qinghai-Tibet clay due to cyclic freezing and thawing, Chinese journal of rock mechanics and engineering, 2005, 24(23), pp.4313-4319
Test on physico-mechanical properties of Qinghai—Tibet slope clay under freezing-thawing cycles, Chinese j. rock mechanics and engineering, 2008, 6(supplement1), pp.2990-2994

This will make the microstructure of HAZ become complex and the mechanical properties are very much fluctuant [[] S.
Therefore, it is necessary to understand the change of the structure of bainite steel in the welding heat cycle and its influencing factors.
The properties of weld metal and base metal may be evaluated through conventional mechanical test by slicing a specimen from the region of interest.
WANG, J.B.QU, Microstructure and Mechanical Properties of the Simulated Welding Heat Affected Zone of an E550 Shipbuilding Steel, Journal of Iron and Steel Research.25 (2013) 35-41
This steel has the following mechanical properties: Rel=624 MPa, Rm=717 MPa, δ=21%, AKV (-40 ˚C) ≥165 J.

As tailor-welded blank having two or more sheet metal welded together, with different mechanical properties, coating and thicknesses, its yield strength and tensile strength are higher, but hardening exponent and elongation are lower than a single sheet.
The different mechanical properties of substrates and weld movement have significant effects on TWB's formability, different materials or thicknesses easily lead to uneven deformation and forming defects such as cracking, wrinkle and springback.
Forming Characteristics of TWB As TWB has two or more sheet metal welded together, with different mechanical properties, coating and thickness.
In particular, as the hardening of weld-line and heat affected zone, the overall mechanical properties of TWB changed significantly, and presenting some characteristics completely different from traditional stamping process.
Therefore, the yield strength ratio is also an important factor that affecting the forming performance of TWB.

In the Present paper, the effects of axial force, rotational speed of the FSW tool, welding speed and shoulder penetration on various mechanical properties of Aluminium alloy 6063 butt joint produced by Friction Stir Welding have been analyzed.
The mechanical properties like tensile strength, Yield strength and % Elongation have been tested using 6 mm thickness plate.
The welding quality can be improved by enhancing the mechanical properties and minimizing the defects.
Hence, analysing & examining the mechanical or physical properties and other relevant significant factors would help to enhance the weld reliability.
Results and analysis 3.1 Analysis of Signal to Noise Ratio (S/N) as a Response The control factors which are found contributing reduced variation are quickly identified and presented as response.

By the consolidated undrained triaxial sherar test of Yingkou clay, obtaining that stress-strain relationship is strain hardening under different confining pressures.A kind of cementation structure in the soil directly affects soft soil strength.And the paper contrast four kinds of normalized factors to study stress-strain characteristics,which are confining pressure, the average consolidation pressure, and the ultimate value of principal stress.The results indicate that the normalized degree is more accurate when used value of principal stress and as normalized factor.
Introduction The soil has very complicated Mechanical properties in the process of geological structure and the evolution,which under different stress path and the stress history.Meanwhile it has regional characteristics.The clay with high water content and compressibility easily lead to the rheology.So the stress-strain relationship behavior of clay is often studied by many scholars[1-5], especially for the normalized stress-strain relationship behavior of clay.
Ladd[6] considers confining pressure as normalized factor can well fit stress-strain relationship after K0 consolidated undrained triaxial shear test of clay.LI Zhuoqin[7] systemic analyse the normalized property of cohesive clay,with confining pressure, the average consolidation pressure as normalized factor,which obtained the ideal effect.Zheng Gang[8] etc study the normalized characters of clay through test with different normalized factors.Because the Regional characteristics of clay, which factor can more accurate normalize the clay of Yingkou City.Based on this, by the consolidated undrained triaxial shear test of Yingkou clay,comparative study stress-strain relationship with the confining pressure, the average consolidation pressure, and the ultimate value of principal stress as normalized factors, and deduce a normalized nonlinear elastic equation which can provide theoretical basis for the clay of Yingkou City.
（4） The ultimate value of principal stress is most accurate in four normalized factors.
[7]LI Zhuoqin.Analysis of the normalized property of cohesive clay [J].