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Among the three factors, the effect of drawing die angle on equivalent strain is the biggest, drawing speed in the middle and frication coefficient lowest.
However, drawing speed increases from 4m/s to 6m/s. temperature increase only 4℃ and less affected by friction.
The property of the wire cannot be influenced by temperature induced by deformation heat, so wires can be drawn at high speed by reasonable die designing and lubrication.
Conclusions Geometry of drawing die is the key successful factor for producing aluminum conductor at high speed.
Tong :Material of Mechanical Engineering Vol.7 (2008),p.70

A modified CP constitutive model, which considers the backstress evolution, is employed to describe the mechanical behaviour of AA7075 under cyclic loading.
The factors affecting local deformations are complicated, including the inhomogeneity of material, crystallographic orientation, grain morphology, particles, geometry of specimen, elastic and plastic anisotropy, loading conditions.
Recently, Li et al. [10] investigated the local deformation of polycrystalline aluminium alloy (AA) 2024 under nanoindentation through CPFE model which includes the effect of grain morphology, and found that the pile-up pattern and local stress in the indentation zone strongly depends on grain properties.
No particular treatment is applied to the grain boundaries, thus the grain boundary effect is entirely caused by the different crystalline properties of neighbouring grains.
Morel, Micro-mechanical modelling of high cycle fatigue behaviour of metals under multiaxial loads, Mech.

Fig.2 Planetary gear mechanism of shearer cutting department 1 sun gear;2 planetary gear;3 planet carrier;4 ring gear Objective function.Low coal loading efficiency of shearer drum is a key factor that restrains the development of thin seam shearer,and the volume of planetary gear mechanism is directly related to the coal loading efficiency of shearer drum.In the design of shearer cutting department,the smallest volume of planetary gear mechanism is required,and the main parameters that affect the volume are the parameters of sun gear and planetary gears.
Pre-treatment.The pre-treatment of finite element analysis mainly contains material properties definition,unit selection,mesh,loads.In order to reduce the amount of computer calculation, the paper carried out FEA for 1/4 model.
Contact stress cloud of planetary gear and ring gear was shown in Fig.9.Maximum stress occured at the tooth root was 103.5MPa, and the value difference was small compared with traditional method.The safety factor checked was 8(Allowable stress/Maximum stress) that could meet the requirements of mining machinery design safety factor.
The safety factor checked was 8 that could meet the requirements of mining machinery design safety factor,but there was a certain surplus amount of safety factor for improving and refining the design of Planetary gear mechanism.
References [1] Chuliang Yan,Fangfei Yang:New Technology of Mechanical Digital Design.

This article is in the current situation font design of the computer age, to explore how computer technology affects the font design.
We should stop and think about: In this era of technological innovation what is good font design, computer technology and how it affects the font design.
The impact of computer technology on handwriting Handwritten Fonts (Script) is characterized by well reflect the artificial handwritten marks, also can increase human touch works, and mechanical sensitivity and symbolic sense, as no decorative line body (Sans Serif Typefaces), unlike the previously mentioned too .
In the past a very long time due to limitations and other technical factors, a single letter in English with only a handwritten font, so the same letters appear in the same text is the same as Sneli Roundhand, Coronet, Mistral and so we compare familiar handwriting.
At the same time, also because of a computer handy copy function, making a lot of font design is copied tampered with, thus greatly violated the interests of the original designer, especially in China, font design property protection and other relevant laws and regulations are not perfect, thus reducing Font designers labor rate of return.

As fans and compressor disks of jet are continually exposed to long-term cyclic loading during use and high cycle fatigue properties are therefore of great interest.
Papakyriacou and co-workers[20] show that fatigue properties of Ti-6Al-7Nb alloy are almost similar at 100 Hz and 20 kHz.
The influence of frequency on the fatigue properties of alloys is rather complicated.
Qian, Essential characteristic and influential factors for very-high-cycle fatigue behavior of metallic materials, ACTA METALLURGICA SINICA, 45 (2009) 769–780
Stanzl-Tschegg, Influence of loading frequency on high cycle fatigue properties of b.c.c. and h.c.p. metals, Materials Science and Engineering: A, 308 (2001) 143-152

., blade tip erosion, and thermal fatigue cracks) to components, especially those under severe thermo-mechanical and corrosive conditions are unavoidable.
Laser cladding technology has revealed as a multi-purpose tool with numerous applications in surface engineering, such as repairing damaged molds used in enhancing service life in marine engine valves and turbine blades [1], improving wear behavior [2] or mechanical and electrochemical properties of mild steel [3], and is an advantageous process for selective improvement of the corrosion resistance of In718 superalloy.
The thermo-physical properties of In718 were allowed to vary with temperature and phase state of the material during the simulation.
Effect of Marangoni force On the surface of the melt pool, there exists gradient of surface tension due to large temperature gradient. as one factor of driving fluid flow, this gradient of surface tension may affect the flow pattern of molten metal in melt pool.
Li, Mechanical and electrochemical properties of multiple-layer diode laser cladding of 316L stainless steel, Appl.

Moon 1,c 1 School of Mechanical Engineering, Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University, Busan 609-735, Korea a korea@pusan.ac.kr, b bulkkot@empal.com, cyhmoon@pusan.ac.kr Keywords: Hydroforming, Hydro-formability, Fuzzy expert system, Fuzzy rule Abstract.
In general, The quantitative relationship between process parameters such as internal pressure and feeding amount and hydroformability is hard to establish because of their high complexity and many unknown factors.
Correlation study between tube hydroforming parameter and hydroformability All parameters affecting on tube hydroformability are related to hydroforming process.
Some kind of parameter that affect on hydroformability heavily , can be controlled by researcher are kind of steel pipe, feeding amount and internal pressure.
The kind of steel pipe is that steel pipe has material properties in proportion to internal pressure having maximum endurance.

Our purpose is based on the existing construction technology, mechanical equipment; building materials and construction technology of comprehensive study, for the later of the continuous rigid frame bridge construction provide a certain amount of experience.
And flexibility of piers should be adapted to the temperature variation and concrete shrinkage, creep and braking force caused by factors such as the horizontal displacement.
Causes of the bridge construction control: Cantilever construction method is adopted to build the prestressed concrete continuous rigid frame bridge directly, faced with the problem of reinforced concrete is a kind of heterogeneous material, material properties is not stable, but also affected by factors such as temperature, humidity, time, and this kind of influence each other and there are differences, resulting in concrete pouring segment that would produce the different stress and displacement, the actual state of the bridge deviates from the value of the design.
At the top of the pier construction, the bridge has been basically completed, not affect the traffic, bridge construction is basically on a stage of the repeated, can make the construction personnel skilled construction technology, construction skills, thus ensuring the construction quality, construction process of the influence of the small on the surrounding environment.
Before pouring sequence by backward, from the web to promote among, layered casting, casting thickness remains at about 30 cm. 5.3 side span and closure period of construction, erection of temporary piers can use assembled components, which is set on the piers steel bearing beam, instead of a floor stand, can also adopt the way of the final closure for the side span and the approach span cantilever connection instead of floor stand. 5.4 closure segments in continuous steel structure bridge during construction is the most key link, determines the linear meets the requirements, the closure segments to factors such as shrinkage, creep of concrete at the cracking problem has a great influence.

This paper introduces system dynamics (SD) model to build a dynamic global network model and analyzes the network structure, including link properties and feedback loops.
·In the subsystem network, each of elements is a subsystem affected by some factors.
ØPopulation subsystem’s main negative feedback loops This loop shows: The population growth diminishes the per-capital GDP, next boosts mechanical growth population, next boosts the population growth in turn. 2.3.2 The other three subsystems Other three subsystems are formed as the population subsystem.
The following equations can be obtained: (1) · : the number of planets to provide the resources we use and absorb our waste · : Ecological Footprint · : Biocapacity According to the system dynamics model, the factors affected earth’s health is mainly population, nonrenewable resources, industrial output and persistant pollution.So we use multiple linear regression[3] to analyze the relationship between factors by SPSS.

Determining how to improve the casting layer surface properties and creating better surface quality of metal products has become a research focus with each big material manufacturing enterprises at present.
In order to study the microprism reflective film work mode, namely the main factors that influence the reflective performance of nickel casting layer.
[4] Yangpei Zhao, Yinhui Huang, Junwei Zhang, etc., Microstructure and properties of pulse jet electrodeposition nanocrystalline copper [J].
Journal of mechanical engineering materials, 2006, 30(6):87-90.
China mechanical engineering, 2008, 19(6):644-647.