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All kinds of impact could affect the minimum width of the narrow beam in WEDM [6].
A proper thickness of the beam is also an important factor to influence of the machining performance.
The material properties used for the input are listed in Table 2.
Table 2 Material properties Temperature (°C) 20 250 750 1500 Thermal conductivity (J/s m K) 50 47 27 35 Specific heat (J/Kg K) 460 480 675 660 Elastic modulus (Pa) 2.05e11 1.87e11 0.7e11 0.19e11 Yield strength (Pa) 2.2e8 1.75e 0.4e8 0.02e8 Finite element analysis results.Fig.6(c) shows the temperature distribution of the workpiece after the last discharge happens.
The influencing factors of the machining process such as single discharge energy, servo reference voltage and workpiece thickness are investigated.

TRIZ Theory in the Application of Vacuum Circuit Breaker Improvement LI Shanmin1, a ZHANG Yu1, b ZHAO Xin2 GONG Shaocheng2 1Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology, Kun Ming 650093, China 2Yunnan Switch Electric Co., LTD, Chuxiong 675000, China aLism1986@sina.com, bzhangyu@public.km.yn.cn Keywords: TRIZ theory, vacuum circuit breaker, technical contradiction, heavy breakdown, contradictory matrix.
The surface of contact is one of the main factors of vacuum circuit breaker insulating properties, high frequency current will ablate the local surface of contact, making fusion welding when the contacts closed, and after the contacts opened, bumps will be produced in surface.
In the design process of vacuum arcing chamber, the surface contacts will always remain particles, more particles will be produced because of the role of vacuum arc, which directly affect the heavy breakdown process of vacuum gap [7]. 3 Solving the problem It can be seen that breakdown mechanism for vacuum gap shows vacuum contact's material and its surface condition are both the crucial factors for insulation of vacuum gap .Contact material has great impact to vacuum gap's voltage level.
When the materical strength is higher, welding force is greater and its anti-welding property is worse.
The problem of worse anti-welding property can be seen as a structure stability problem in general engineering parameters.

From point of view of temperature generated during machining of aluminum alloys, and of its influence on the cutting tool, there is not a major problem, because their low melting point is not able to alter the mechanical properties of the cutting tool, the wear especially, [1].
But, as it is know, due to the high thermal conductivity of aluminum alloys a large amount of heat generated is absorbed by the workpiece and, and sometimes, this phenomena can affect the dimensions and surface quality.
Studying the influence of the cutting parameters (depth of cut, feed rate and cutting speed) on the cutting temperature during turning of an aluminum alloy, 6083 type, in [5] the authors found that the depth of cut is the major factor that affects the cutting temperature, then feed rate and squared cutting speed.
[5] A.Kannan, K.Esakkiraja, Dr.M.Nataraj, Modeling and Analysis for Cutting Temperature in Turning of Aluminium 6063 Using Response Surface Methodology, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE, Volume 9, Issue 4 (Nov. - Dec. 2013), pp. 59-64
[6] Piotr Zgorniak, Anna Grdulska, Investigation of Temperature Distribution during Milling Process of Az91hp Magnesium Alloys, Mechanics and Mechanical Engineering, Vol. 16, No. 1 (2012), pp. 33–40 [7] *** Milling cutters - Guhring catalog [8] *** Datasheet handheld thermometers of Optris MS series.

Implementation of Off-line Programming for Robot Roller Hemming Jianqiang Wang1, a, Lusheng Zhu1, b, Zhonghua Wang1, c,Jian Yang 1, d, Donghua Tang2, e 1 School of Mechanical Engineering and Automotive, Hefei University of Technology, Hefei, 230009, China 2 JEE Automation Equipment Company, Hefei, 230009, China aemail: jianqiangwang@126.com, bemail: royalzls@163.com, cemail: 631712432@qq.com, demail: oyj0524@126.com, eemail: tangdonghua@jee-cn.com Keywords: Roller Hemming; Trajectory; Calibration; OLP Abstract.
Calibration of hemming tool As a significant factor affecting the quality of production, it is inevitable to control the pressure of roller hemming.
The operator calibrates the tool or spring by using a pressure measurement device and a modified vernier caliper. (1), (2) was the mathematical expression for the mechanical property of spring which was also shown in Fig.9
Mechanical property of spring Fig.10.

This paper investigates the effect of different equal channel angular pressing (ECAP) routes and number of ECAP passes on resulting microstructure, mechanical properties and creep behaviour of selected materials.
However, a little apparent dependence of the creep properties was observed during subsequent pressing.
It is important to say that creep properties of UFG materials strongly depend on microstructure evolution.
The results show that successive ECAP pressing leads to a noticeable decrease in the creep properties.
Langdon,Factors influencing creep flow and ductility in ultrafine-grained metals, Mater Sci Eng A 558 (2012) 403-411

The thermo-mechanical coupling analysis was carried out by the finite element code MSC.Marc.
The applied pressure as one of the most important factors can significantly affect densification behavior, mechanical property of compacts during HIP process.
Through thermo-mechanical coupling calculations, density distribution and density history for the compact with different applied pressures during HIP process were discussed.

One of the predominant factors that control the farmers' output and efficiency is the composition and number of the family members.
Likewise, heavy agricultural machinery on the soil has been significantly affecting soil properties [56].
Uwaegbute, Food Insecurity and Associated Factors Among University Students, (n.d.). https://doi.org/10.1177/0379572119826464
Olakunle, Variation in the Physico-Chemical Properties of Badagry and Ikorodu Soils, Lagos Nigeria, Int.
Kariuki, Factors Determining Adoption of New Agricultural Technology by Smallholder Farmers in Developing Countries, J.

The importance of prevention and minimization of small particles coalescence by separating the oil stream leads to the need of improving the properties of the dispersers to boost their efficiency.
This influence happens down the particles in the mechanical form of compressional–depressional wave.
In this article’s arguments, we obtained the expression for calculate parameter of the separator established the mathematical relation which links the properties of the flow to characteristics of the spherical solid–elastic nail system.
Wu, Structural and dynamic properties of colloids near jamming transition, Colloids and Surfaces A: Physicochem.
Slobodyan, The probability factor of contact measurements, Measurement Techniques. 54 (2011) 68-73

The main process is that: first of all, importing the model which has been established in UG by TracePro, and then delimiting the surface parameters of the poly mask and optical properties of light sources.
The reason for this result is that reducing the effect of mechanical error and spot shape changing to the results, and to make sure the highest economic performance at the same time.
Calculation of the limit angle deviation The space position of light source will bring a direct effect on the spot shape and energy distribution through the analysis of mechanical structure of optical system to the solar simulator.
The analysis results confirmed that the precision of spatial position of light sources is the key factor which affects the spatial position of composite light spot and energy distribution.
Therefore, the machining precision of critical parts should be guaranteed during the design of sun simulator optical mechanical system.

Material properties Table 2.
The findings of this study should not be generally applied into clinical practices in which teeth movements are significantly affected by multiple patients’ factors such as masticatory forces, salivary lubrication and orofacial muscle functions.
Factors associated with the stability of titanium screws placed in the posterior region for orthodontic anchorage.
A prospective study of the risk factors associated with failure of mini-implants used for orthodontic anchorage.
Effects of predrilling depth and implant shape on the mechanical properties of orthodontic mini-implants during the insertion procedure.