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Optimizing of Electric Discharge Texturing Parameters of Rolls of the Rolling Mill of Steel Sheets Evin Emil1,a, Kmec Jozef2,b, Fechová Erika2,c 1Technical University of Kosice, Faculty of Mechanical Engineering, Department of Technologies and Materials, Mäsiarska 74, 042 01 Kosice, Slovakia 2Technical University of Kosice, Faculty of Manufacturing Technologies with a seat in Presov, Department of Mathematics, Informatics and Cybernetics, Bayerova 1, 080 01 Presov, Slovakia aemil.evin@tuke.sk, bjozef.kmec@tuke.sk, cerika.fechova@tuke.sk Keywords: Statistical methods, Roughness, Number of peaks, Reliability indices, Working cylinders, Rolling mills.
Microgeometry of the surface of galvanized sheets for superficial parts of cars is one of the decisive factors affecting the appearance of the surface after painting and stampability of steel sheets.
It is necessary to meet the requirements not only for the mechanical properties, but also ensure a perfect surface of zinc coating and its adhesion to the base materials.
It goes from roughening the surface of the work rolls by mechanical blasting of fine-grained granules (SBT - Shot Blast Texturing) to roughening work rolls by sparking (EDT - Electric Discharge Texturing), laser beam (LBT - Laser Beam Texturing), electron beam (EBT - Electron Beam Texturing) and electrolytic chromium (PRETEX - Preussag Texturing) [2, 3].
Nine: The interaction between electrogalvanized zinc deposit structure and the forming properties of sheet steel.

The photograph of porosity microstructure in anisotropic variation status As we all known, pores are the important feature to illustrate physical, mechanical and seepage properties of soil.
Porosity shapes factor is research on.
The porosity shapes factor Fi is a ratio of two factors, it is a value that less than or equal to 1: (1) Where Pi is the circumference of a circle whose area is substituted for the real pore area and Si is actual perimeter of the pore shape.
The degree of anisotropy porosity In is a ratio of two factors, it is a value that also less than or equal to 1: (2) Where L is the long axis of pore and B is the short axis of pore.
[3] Zhang F., Xie S.Y., Hu D.W., et al, Affect of water content and structural anisotropy on mechanical property of clay stone, Applied Clay Science, Vol.69 (2012), p.79-86

Research on In-flight Property of Particles in Plasma Spray Forming LI Hongyou 1, a, SHI Yuying 1,b , ZENG Haoping1 ,XU Wenji2 1 College of Mechanical Engineering & Automation, Huaqiao University, Xiamen Fujian China 2 School of Mechanical Engineering, Dalian University of Technology, Dalian China a lihongy@hqu.edu.cn, bliuxm@hqu.edu.cn Keywords: plasma spraying; forming; particle; in-flight behavior.
Introduction Plasma spraying is a process to material coating and forming, in which a large number of factors influence the coating and forming properties.
The influence factors include the adjustable spray parameters (such as the flow rate of gas, electrical current, etc.) and the nonadjustable noise factors like the wear of the electrodes [1-3].
The main factors influencing the temperature and velocity of the in-flight particle were discussed, and then the molten state of particle was analyzed.
The experimental results show that the input parameters (gas flow rate and electrical current) mainly influence the particle in-flight behavior, which directly affects the coating quality.

Mechanical properties.
Mechanical properties of the Ti-Cr-B-N and Ti-Al-Si-B-N coatings were inferred by nanoindentation.
Morphology and texture can influence mechanical properties of coatings [80].
One of the main factors affecting the Young's modulus is the nature of the atomic bonding, which is related to the atomic configuration of each component of the material.
Mechanical properties of all layers are degraded compared with as-deposited coatings.

Based on the analysis of the piston engine camshaft common failure mode, combining the mechanical analysis and risk management means，the feasibility of its repair was much discussed, the repair technique are studied, and proved its correctness and effectiveness.
Therefore, as long as the cam contour grinding quantity is not big, hardness on the surface of the cam will not change; its wear resistance will not be affected.
The camshaft is bad working conditions; the camshaft quality factors (such as the accuracy of type lines, accuracy of form and position, surface roughness, etc.) is sensitive to the work reliability of cam and engine performance, any quality factors are likely to cause a serious accident.
Using CNC camshaft grinding machine can not only basically eliminated all kinds of defects of the cam profile after grinding (e.g., surface burns, the chatter marks), cam contour lines maximum error is less than 0.01 mm, greatly ensure the quality of the cam repair; but also man-made factors affecting is small, conducive to ensure the stability of quality, at the same time also do not need additional tooling, camshaft repair can be directly to the clamping and not reduce the clamping precision.
Profile accuracy detection Cam contour lines not only affect the engine valve-train performance (i.e., the valve’s ability can pass) and dynamic performance (such as impact load between the cam and tappet body), but also affect the contact stress and lubricating properties between cam and tappet body.

The microhardness after annealing is 10 HV0.5 lower, but the affected depth is not changed.
It seems reasonable to assume that the amount of precipitated ultra-fine grain has a direct effect on the mechanical property of the current Ti alloy.
Microhardness The mechanical property measurements recorded indicate a significant increase in hardness and strength in surface layers after LSP.
The hardened depth affected by LSP is about 500μm.
The mechanism of the LSP induced hardness increasement includes two factors.

The basic hypothesis of this article focuses on the study changes in mechanical properties of stainless steels ELC X01Cr18Ni10Ti under surface finish when drilling.
Mechanical properties in the solvating annealing, where part of the solution passes into the carbide, depending on the content carbon.
High strength, low thermal conductivity, high ductility and a tendency to high firming austenitic stainless steels are the main factors that make their machinability difficult.
As a result of deformation heating and heat, which always accompanies the process of cutting, are the tensions in this layer and change its physical and mechanical properties.
Increased demands on the quality of holes calls for considering a series of factors, for example: · the machine for the cutting process must be in good condition.

Considering about the economic factors, it chooses the core board of metal sandwich thermal insulation board which is suitable for Anhui Province.
The temperature of wave-amplitude ratio between internal and outside surfaces depends on physical properties and thickness of building envelop.
To intimate the thermal insulation properties of metal sandwich thermal insulation board assembled on enclosure structure of buildings more reliable, now the Ecotect shall be introduce in.
Avoiding unnecessary factors to ensure material type of core board is the only variable. 3.
The heat-retaining properties of building envelope can be shown from the heat input and output percentage intuitively because of all the same settings without building envelope.

When the uplift force and soil properties are given, l, b, ht will be dispersed to {li, bi, hti}, respectively.
Considering the economic factors, the upper area was selected as the optimization objective function, as follows, minA(l, b)=l×b (7) (a) T=66kN (b) T=600kN Fig.2 Embedded depth affected by foundation upper surface area(ω= 60°) (a) T=66kN (b) T=600kN Fig.3 Variation of the embedded depth with respect to foundation length(ω= 60°) Fig.4 shows the influence of ω on the optimized embedded depth under different soil properties for T=66kN.
Comparing with ω, the embedded depth is more sensitive to soil properties.
The soil properties and uplift forces have an important influence on the optimized embedded depth.
For the given soil properties, the optimized embedded depth increases with the uplift forces.

Multi component metallic powder is tested for mechanical properties to suit rapid tooling plastic injection moulding applications [3].
The process parameters control the mechanical properties of the parts produced by DMLS [5].
From the initial studies it was found that a few process parameters did not have any effect on the mechanical properties of DMLS components.
An orthogonal array with the five factors is shown below.
These factors determine the route of the laser beam.