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Li1 1College of Mechanical Engineering and Automation, HQU, Quanzhou 362021 P.R.
China 2 School of Mechanical Engineering, DUT, Dalian 116023 P.R.
How to establish the coupling relationship among the input parameters, property of in-flight particles and coating forming, and how to control the corresponding factors to improve the forming quality during spraying, are still insufficient to investigate.
Therefore the mechanical intensity and surface quality of the mould are further enhanced.
Property of in-flight particle.

The weather degradation of a clay ceramic affects not only the technical properties, specially the mechanical strength [2], but also the geometrical dimensions of a ceramic product, which is an important form of degradation.
Therefore, changes in dimension caused by weather degradation with time are as important as an inherent decrease in mechanical properties.
Several factors may affect the weather degradation such as time of exposure, humidity and temperature.
In special, the incorporation of granite residue was recently found to improve the clay ceramic properties [8-13].
These factors decrease the capacity of the incorporated ceramic to swell by water adsorption and to dilatate under the solar heat.

Abstract: The complex nonlinear problem exists between the factors which influence the strength of hybrid fiber reinforced concrete.
Polypropylene has the performance of heat resistance, chemical corrosion resistance, electrical insulation, light quality, excellent mechanical properties, low cost, simple technics, though polypropylene cannot be used as structural reinforced material, the mixed polypropylene can effectively improve the crack resistance, toughness, permeability resistance, durability and fatigue resistance of concrete.
Due to the strength of the composites is influenced by various factors, linear function does not apply considering the nonlinear characteristics of all the factors and hybrid fiber concrete strength.
(2) RBF neural network function based on k-means clustering, in which Overlap coefficient and ClusterNum of hidden layer nodes are the main parameters that affecting the network performance.
The above six factors are chose as input layer nodes in modeling, compressive strength and breaking strength are respectively chose as two RBF network output layer nodes.

Introduction Melting technology, especially the overheating and pouring temperature as well as the casting cooling rate, affects alloy microstructure and shaping the properties of casting determines its future application.
This type of structure adversely affects the casting mechanical properties and machinability.
Better knowledge of these phenomena can have a significant impact on further determination of the liquid alloy ability to develop certain types of crystal structure after the solidification process (cluster structure), which can improve the casting mechanical properties and performance.
This eliminated the effect of other factors, and enabled correct determination of a relationship that is believed to exist between the overheating degree and solidification parameters of the examined AlSi17 alloy.

But with changes in temperature, humidity and amount of traffic, serious cracking problems also exist in this pavement, affecting pavement performance.
Introduction Now in our country, the Technical Specifications for Construction of Highway Roadbases set semi-rigid base mixture was only strength as an evaluation index, but using better mechanical properties of cement stabilized gravel mixture for paving base, the anti-crack performance may not be optimal, which is also why only use the strength to control road base will do nothing to reduce the shrinkage crack of base.
Therefore, in addition to studying mechanical properties of cement stabilized gravel base material,the shrinkage study is also necessary.
Such cracks will spread to the upper with the repeated vehicle load, and the asphalt pavement will crack and get damaged [1].The load type crack is mainly related to factors such as surface layer thickness, thickness of base, base materials,overload,and so on.

In this case the influence of this factor, exerted on the structure and properties, frequently appears to be highly significant” [3].
First, in scientific literature and field experience despite a multitude of researches devoted to study of the bronze casting properties, there are not any data on fatigue crack life of this material, its friction factor et cetera.
Third, the basic applicability of these components is related to the fact that they are applied in case of wear-out, that is, they should possess essential strength properties.
Discussion and Conclusions The indicated factors can be divided into groups according to which the reserves are virtually inessential, average and gross.
The average factors include metal heating/ageing time control, temperature control in the bull ladle et cetera.

The effect of the treatment of metal parts depends on various factors: the initial microstructure of delivered material; surface topography; residual stresses prior to and following the shot peening process.
SP treatment with a suitable intensity value normally has a positive effect on surface properties, which can be attributed to the occurrence of compressive residual stresses that prevent the initiation of micro-cracks and their propagation, regardless of changes in surface roughness and possible damage.
The chemical composition of the alloy and its mechanical properties are given in Table 1 and Table 2.
Designation Chemical composition [wt%] Si Mg Cu Mn Fe Cr Zn Ti ENAW 7075-T651 AlZn5.5MgCu 0.12 2.36 1.58 0.05 0.17 0.19 5.70 0.03 Table 2: Mechanical properties of the treated aluminium alloy.
Microhardness profiles in the surface layer indicate a degree and depth of individual specimen hardening, affecting the operation of a machine component.

Titanium and its alloys are difficult to machine materials due to several inherent properties of the material.
Due to their substandard machinability, it is not easy to machine Ti-alloys economically with traditional mechanical techniques [4].
The factors and their levels in coded and actual values are depicted in Table 1.
The present study reveals that factors like wire feed rate, pulse off time and pulse on time are the primary influencing factors affect not only on the productivity but also on the surface quality of machined specimens.
Akutsu, “A fundamental study on Ti–6Al– 4V’s thermal and electrical properties andtheir relation to EDM productivity,” J.

Effect of Grain Growth Inhibitor on the wear of ultrafine cemented carbide cutting inserts Jianbing Cheng1,2,a, Siqin Pang1,b, Xibin Wang1,c and Qixun Yu 1,d 1Key Laboratory of Fundmental Science for Advanced Machining, Beijing Institute of Technology, Beijing, 100081, China 2School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 100048, China achengjb@th.btbu.edu.cn, bpangsq@bit.edu.cn, ccutting0@bit.edu.cn, dyuqx2003@bit.edu.cn Keywords: Superalloy; Low pressure sintering; Tool life; Inhibitor; Adhesive wear.
Because a large amount of cutting heat is generated by cutting metal deformation and the friction between the tool and the workpiece in cutting process, the cutting zone temperature rises quickly, violent wear will be produced between the tool rake and chip as well as the flank face and workpiece, the wear resistance is the result of comprehensive effect of the mechanical properties of cemented carbide at high temperature.
At present, research of grain growth inhibitors are mainly concentrated in mechanical properties of ultrafine cemented carbides, but the effect on the friction and wear properties of ultrafine cemented carbide cutting inserts is rarely.
At first, Stoichiometric amounts of the raw materials, i.e. microscale WO2.9, Co3O4 and carbon black, were weighed based on the composition of WC-10wt.% Co composite powder, then raw materials were divided into two groups according to the requirements of material properties, one group of adding grain growth inhibitor (mass fraction of 0.2%VC − 0.8%Cr3C2), another group without grain growth inhibitor, the ultrafine  WC-10wt.% composite powder was synthesized by using vacuum in situ reduction and carburization reactions[5-7], the composite powder composite powder molding into flan of cutting inserts under the pressure of 150MPa. 
In general, there are many factors affecting cutting inserts wear, the cutting speed is the most significant factor affecting cutting inserts wear and tool life when the work piece material and cutting insert material as well as insert geometry are selected.

Thomas et al. [6] report of mechanical properties of electron beam welded Ti-6Al-4V alloy sheet.
The mechanical properties of SEBM produced Ti-6Al-4V is shown in Table 2.
For the development different factors are taken into account.
First of all, the mechanical properties of the sheet metal as well as the additive parts are considered.
Mechanical properties of composite parts To evaluate the mechanical properties of composite parts two parameters are defined.