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Factors that affect the coatings wear resistance consisted of friction coefficients, hardness and anti-sticking properties.  
This paper aims to develop a method that optimizes the multi-objective properties of Zr-DLC coatings.
Multi Response Optimization Taguchi’s L4 orthogonal array was used to design the experiments with two factors and two levels.
Taguchi advocates use of orthogonal array designs to assign the factors chosen for the experiment.
Ø [6] Mantgomery D.C (2009), From this ANOVA tables, it is revealed that thickness, temperature are prominent factors which affect the coating.

Material properties and geometry of the safety coupling of the safety pin has a random uncertainty.
It is caused by the randomness of the following factors. 1, the mechanical properties of the safety pin material uncertainty. 2 safety pin sheared surface diameter and the safety pin is installed pitch diameter of uncertainty. 3 by the force of the safety pin unevenness. 4 Install the accuracy uncertainties[2].
Conclusion In fact, because the objective existence of material mechanical properties and part geometry uncertainty.
To do this requires reducing the mechanical properties and geometry of the dispersion.
Affect the safety pin on the mechanical properties of the dispersion is very obvious.

Many factors such as matting agents, formulation composition, and curing conditions affect the gloss of the coating, therefore, it is difficult to obtain the desired matt gloss of UV curable coating [6].
Therefore, it is required to improve the resistance to liquid properties and mechanical properties and reduce the gloss of the UV curable coatings.
However, very few studies have been carried out on the gloss, resistance to liquid properties and mechanical properties of wood flooring UV coatings.
Orthogonal tests were applied to analyze the influence of the three factors on the properties of modified wood flooring UV coatings performance.
The resistance to liquid properties, mechanical properties and gloss of wood flooring UV coatings depends strongly on the content of nano-silica.

As a result, the overall properties of parts will be affected negatively.
Five main factors and four levels were selected to design the orthogonal test.
(1) The importance evaluation of each factor According to the range analysis, these five factors influence on the corrosion resistance property of heat affected zone doesn’t show obvious difference.
The influence order of the factors can also be obtained according to Fig. 2， it can be seen in Fig. 2 that the five factors influence on the corrosion resistance property of heat affected zone is more like.
Fig. 2 Factors effecting curve (2) Optimizing laser quenching processing parameter The optimized level of the factors is related to the required parameter.

aiswanfc@yahoo.com, bjaafar@.eng.ukm.my, cabubakar@eng.ukm.my Keywords: particle size, rheology properties, mechanical, electrical properties Abstract.
The particle size and composition (wt. %) of graphite filler material influences on the mechanical properties and electrical conductivity of composite materials.
Optimization of filler with different particle size variations can increase of the mechanical properties and electrical conductivity composite materials.
Meanwhile Table 1 is shows the main materials properties.
Results and Discussion Rheology Properties.

The factors that affect the surface quality and relative density are the process parameters such as the laser energy, scan speed and so on.
Due to the parts’s complexity and the unconventional process of SLM there is still a requirement to investigate the factors that affect precision including surface roughness and properties using SLM [8].
Surface roughness and part resolution are all heavily depend on laser processing parameters and melt pool control because properties of manufactured parts depend strongly on each single laser-molten track and each single layer [9].
Due to the layer based principle of generative production techniques there are certain restrictions like mechanical anisotropy and structural properties [10].
Due to the layer based principle of generative production techniques there are certain restrictions like anisotropy of mechanical and structural properties.

Monel 400 is nickel-copper alloy being widely in thermal and nuclear power plants, marine environments because to its outstanding properties include high ductility, good weldability and good corrosion resistance.
In the present investigation, an attempt was made to evaluate the mechanical properties of gas tungsten arc welded Monel 400 weldments.
Therefore, detailed failure and laboratory investigations were conducted to determine the factors that led to the premature failures of the Monel 400 in natural Gulf seawater and 3.5% NaCl solutions.
The microstructure examination revealed the prominent equiaxed coarse grain with the well defined grain boundaries in the heat affected zone due to prolonged temperature.
The inter polarization of grains varies due to the transfer of heat from the weld zone to the heat affected zone and immediate cooling traps the oxide between the grains due to which the heat affected zone would have lesser strength, hardness and high corrosion attack.

Results and Discussion Mechanical performance of PLA/Tencel blended Yarn.
Tensile properties of PLA/Tencel blended Yarn are shown in Table 2.
The quality of the product, yield, cost, and the handling property were affected by the twist.
Different kinds of fibers have different twist factors.
In order to understand the tensile properties and twist factor of PLA pure yarn and blended yarn, the tensile properties of PLA pure yarn and PLA/Tencel (50/50) blended yarn with different twist factor are analyzed.

The most important factors of durability regarding pavements are frost scaling and abrasion resistance.
Many properties of LWAC influence the durability of concrete structures.
We focused at first on surface properties.
Li, Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete, Waste Management Vol. 24 (2004) 333-338. doi:10.1016/j.wasman.2003.06.003 [5] X.
Edwards, Mechanical and thermal properties of novel lightweight concrete mixtures containing recycled glass and metakaolin, Construction and Building Materials. 31 (2012) pp.157-167

Analysis of variance (ANOVA) was performed to isolate the effects of the parameters affecting the hole making in abrasive water jet.
Conventional machining of hole making in fiber-reinforced composites is difficult due to diverse fiber and matrix properties, fiber orientation, inhomogeneous nature of the material.
The major properties of the laminated GFRP material used are listed in Table I.
Two groups of the control parameters in each type of cutting process were developed in order to study the effect of more factors affecting the response variables.
This is because AWJM technology is less sensitive to material properties as it does not cause chatter, has no thermal effects, impose minimal stresses on the work piece.