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Alwarsamy2, b 1&2Department of Mechanical Engineering, 1Sri Chandrasekharendra Saraswathi Viswa Maha Vidyalaya University, Enathur, Kancheepuram – 631561, Tamil Nadu, India, 2 Government College of Technology, Coimbatore-13 Tamil Nadu, India, aprabhu.9495@gmail.com, btalwarsamy@gmail.com.
The quality of the weld clad bead geometry is achieved by controlling the process parameters through developing the mathematical model and predicting the significant factors.
The cladding process enhances the base material properties.
I*S+0.017778*I*N+0.012667*S*N-0.00103*I2-0.00062*S2-0.07641*N2 (3) Height of reinforcement mm= -17.196-0.1654*I+0.227714*S+1.669368*N+5E-05*I*S-0.00306*I*N-0.01717*S*N+0.000521*I2+0.000223*S2+0.06078*N2 (4) Depth of penetration mm= -24.3134+0.124903*I+0.044042*S+0.869707*N+1.67E-05*I*S-0.0015*I*N-0.00139*S*N-0.00021*I2-6.6E-05*S2-0.00734*N2 (5) Dilution %= +1340.245-9.0031*I-1.11156*S-21.8489*N-0.00256*I*S+0.027278*I*N+0.127833*S*N+0.02105*I2-0.00233*S2-0.27719*N2 (6) Table 3 Anova for models developed Bead geometry Sum of squares Degrees of freedom Mean square F-ratio R2 Adj R2 AP Reg Res Reg Res Reg Res BW 10.39 0.46 9 10 1.15 0.046 24.85 0.96 0.92 15.34 HR 2.22 0.086 9 10 0.25 0.0085 28.80 0.96 0.92 18.09 DP 0.27 0.0036 9 10 0.029 0.00036 81.77 0.99 0.97 30.43 DL 572.03 10.86 9 10 63.56 1.09 58.51 0.98 0.96 29.82 Checking the Adequacy of the Model Developed The objective of ANOVA is to validate the process parameter significance that affects

It is proposed that differences in mechanical behaviour of AA5083 for the strain rate conditions examined can be attributed to differences in the grain growth behaviour.
However, at that stage of the work neither measurements of grain growth nor cavitation, both of which will affect the SP flow characteristics, had been made.
While the beneficial effects of a rapid prestrain are clear, the most important factor is the effect of this on post-formed mechanical properties, and this aspect of the work remains to be investigated.

Measurement of the temperature distribution at the tool-chip interface by using a cutting tool with seven pairs of built-in micro Cu/Ni thermocouples Jun Shinozuka1, a *, Habibah Binti JAHARADAK 2,b 1Department of Mechanical Engineering, Yokohama National University, Japan 2Graduate School of Engineering, Yokohama National University, Japan a*jshinozu@ynu.ac.jp, bjaharadak-habibah-yp@ynu.jp Keywords: cutting, temperature, micro thermocouple, ultrasonic machining, electroless plating, electro plating, ion plating Abstract.
Introduction The tool wear rate is strongly affected by temperature.
One of the crucial functions of the additives is to promote the formation of a certain film at the tool-chip interface on the tool face, which improves the tribological property at the interface.
The formation of the film at the tool-chip interface depends strongly on temperature because the thermo-chemical reaction is the principal factor for the formation of intermetallic compounds.
[9] Network Database System for Thermophysical Property Data on http://tpds.db.aist.go.jp/

The mechanical properties of the steel as well as of the counterbody are given in Table 1.
During the ensuing propagation stage, the crack extends below the surface, crossing domains less affected by the contact loading.
The following variables are considered: Fretting tribological properties: ( ) ( ) ( ) ( ) ( )5
; ; ; ref refQ Q Q ref ref t t t t t t GS GS GS t t δδ δ µµ µ µµ µ = = = = Fretting wear properties (25000 gross slip fretting cycles): ( ) ( ) ( ) ( )6
GSµ tQ tµ tδ thQ MAXl TOTALK Wear properties (stabilized GS loading) Friction properties Q(N) δ(µm) Q(N)Q(N) δ(µm) Cracking properties (stabilized PS loading) lmax Cracking properties (stabilized PS loading) lmax 52100K TREAT.K 0 1 2 0 1 2 lmaxlmax MAX * l th * Q Combined GS/PS fretting loading (a) GSµ tQ tµ tδ thQ MAXl TOTALK 52100K TREAT.K 0 1 2 0 1 2 MAX * l th * Q (b) Wear properties (stabilized GS loading) Friction properties Q(N) δ(µm) Q(N)Q(N) δ(µm) Cracking properties (stabilized PS loading) lmax Cracking properties (stabilized PS loading) lmax lmaxlmax Combined GS/PS fretting loading Figure 14 : Normalized polar charts for two different fretting palliative treatments (reference fretting system : 30NiCrMo8/52100 contact) (a) shot peening treatment, (b) nitriding.

This is important because the surface cleanliness has a direct effect on both the structural and electrical properties of the bonding interface as well as on the resulting electrical properties of the bonded material.
The mechanical properties of bonded wafer pairs (stress) and the electrical properties depend on the applied oxide layer.
Variations of the tilt and twist angles are the most important factors effecting the morphology and structure of the resulting dislocation network.
The investigations proved that such interactions induce dramatic changes of the dislocation properties.
Recently, however, the luminescence properties of dislocation networks were studied in detail.

In addition, instrumented techniques probe a small volume of material, allowing for the determination of local properties and small volumes of materials (such as single grains, phases or thin films).
Unloading curve: analysis with the Oliver & Pharr method (1992): Most of the methodologies for evaluation of mechanical properties relay in the analysis of the unloading portion of P-h curves.
This last parameter may affect to a large extent the correct evaluation of the mechanical properties of hard materials, as it captures not only the lack of axisymmetry of the indenter but also the radial displacements of the material [3].
It has to be taken into account that the model of choice depends on the relative mechanical properties of the coating and the substrate, particularly their relative ductility and stiffness.
Conclusions Instrumented indentation is a powerful technique to extract material properties at very low scales, once correctly calibrated.

Analysis and Modeling of Wafer Thermal Transfer in a PECVD Reactor Huanxiong Xia1,a , Dong Xiang1,b , Peng Mou1,c , Han Zhang1 1The department of precision instruments and mechanology, Tsinghua University, Beijing 100084, China aEmail:xiahx10@mails.tsinghua.edu.cn bEmail:xd@mail.tsinghua.edu.cn cEmail:moupeng@mail.tsinghua.edu.cn Keywords: Thermal accommodation, PECVD, Heat transfer Abstract: The temperature distribution in the reactor, especially on the surface of the wafer, is the important factors influencing the chemical reaction in CVD and PECVD process.
It will improperly activate or inhibit some chemical reaction between the reactants when the temperature deviation is too high, and lead to the property of the film deviate the expectation.
To analyze the heat transfer in PECVD reactor considering all of the above factors is very difficult.
Thus Twt decreased with the increase of H1 under the effects of these two opposite factors, but the changes were slightly.
Sala, A., Radiant Properties of Materials: Tables of radiant values for black body and real materials. 1986: PWM-Polish Scientific Publishers

Positioning Algorithm of Underground Personnel Based on ZigBee Technology Wei Jiang1, a *, Feng Yang2,b 1School of Mechanical Electronic & Information Engineering, China University of Mining & Technology, Beijing, China 2 School of Mechanical Electronic & Information Engineering, China University of Mining & Technology, Beijing, China ajiangweicomcn@126.com, byangf@cumtb.edu.cn Keywords: personnel location, ZigBee technology, Gaussian filtering algorithm, Bayesian filtering algorithm.
In order to reduce the injuries and property losses, some of the new technology is gradually applied to the coal mine production.
That is a key factor.
The RSSI signal is easily affected by node environment, and it is sensitive to distance, so it will be error prone if using untreated value.

This is because the internal friction angle of coarse soil is mainly affected by coarse-grained content.
Vesic and Clough [7] consider that: This is because there is a broken value for the coarse-grained soil and other bulk granular materials, and when it is more than this broken value, the initial void radio and the dilatancy effects on the strength of the impact will be significantly weakened, and the particle breakage will gradually become the dominant factor affecting the strength.
[5] ZHOU Xiao-wen, GONG Bi-wei, DING Hong-shun, et al.Large-scale simple shear test on mechanical properties of interface between concrete face and gravel underlayer[J].Chinese Journal of Geotechnical Engineering, 2005,27(8): 876-880

The structure and size of a STL file is affected by redundant information.
Data acquisition is through a mechanical touch trigger probing process and a CNC milling machine is used to manufacture the copy of the scanned object.
In [8] an iterative algorithm to integrate RE and RP is developed defining the shape factor, which is maximum distance between points and best-fit polygon when projected on middle plane.
Proposed Approach The methodology designed and implemented for direct slicing of point clouds has been applied to various data sets with different properties.
One parameter that does affect processing time is the point cloud aspect ratio H/L, where H is the bounding box height and L is the side length of each slice.