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The interaction process between cutter-head and rock is affected by the factors such as the acting loads, line spacing of two adjacent cutters, and rock properties that impact the angle and extension of cracks under the crushed zone.
Table 1 lists the physical properties of some rocks.
The interaction process between disc cutters and rock body is affected by the many factors, such as the acting loads, line spacing of two adjacent cutters, and rock properties that impact the angle and extension of cracks under the crushed zone.
Table 2 lists rock mechanical properties for the simulation.
Fig.2 Finite element model for simulating rock fragmentation progress Table 2 Rock mechanical properties for the simulation Density.

In order to successfully use the technique as a monitoring tool for an appropriate production of aluminum casting, all affecting process conditions must be taking into accounts when cooling curves are used as indicators.
Also, there are many factors that influence the characteristics of cooling curves when grain refinement becomes more prominent.
Introduction Aluminum-silicon alloy is one of the most important aluminum based foundry alloys because of its excellent castability, good mechanical and physical properties [1-2].
In case of aluminum casting alloys, the control of grain size has been also used to improve the feeding capability of the melt and to improve the mechanical properties [3].
To summarize, the above 3 main factors can be applied in monitoring and eventually in controlling melt quality in production of aluminum casting.

The physic-mechanical properties of different types of glass FRP grids were investigated.
Mechanical and physical tests were used to measure the retained properties and to observe the causes of damage and strength reduction.
The geometric and mechanical properties, measured with tensile tests are shown in Table 1.
GFRP specimens showed high mechanical properties, due to a high fiber content.
Abanilla, Design factors, reliability, and durability prediction of wet layup carbon/epoxy used in external strengthening.

Modeling of Surface Roughness in Drilling of MDF Panels T.N.Valarmathi1, a*, K.Palanikumar2, b, S.Sekar3, c 1Department of Mechanical & Production Engineering,Sathyabama University, Chennai 2Sri Sai Ram Institute of Technology 3Department of Mechanical Engineering,R.M.K Engineering College, Chennai avalarmathi.tn@gmail.com, bpalanikumar_k@yahoo.com, csekarsarav@gmail.com Keywords: Composite, Drilling, Parameters, Surface Roughness Abstract.
The forces developed in drilling of composite panels during the assembly of the product affects the quality.
From literatures it is found that drilling parameters, tool geometry, tool size and tool material [1 - 7] are the most influencing factors in developing the cutting force.
The drilling tests have been conducted with three factors and three levels using CNC VMC on MDF using HSS twist drills of diameter 10mm with three different point angles.
Cho, Study on drilling characteristics and Mechanical properties of CFRP composites, Acta Mechanica Solida Sinica, 21 (2008) 364-368

Results showed that lapping load and rotate speed were the most important factors on the removal rate, grain size played a key role in the removal rate and roughness under the same conditions, profile tolerance of surface shape depends on the flatness.
Sapphire has so excellent optical properties and chemical performance that its surface quality after lapping needed to very high, even to the no damage super-smooth [9] which roughness value should less than 1 nm.
Results are gotten by the way of a single factor.
According to Fig. 2 to fig. 6, load and speed are the main factors affecting on the removal rate, while abrasive size and concentration do smaller to it, but the influences to the surface smoothness are greater than load and speed do.
,Carr G.I.: Optical properties of c-axis oriented super conducting MgB2 films.

In order to improve the life of seal products, the mechanical properties, elasticity and oil resistance, and the wear and antifriction properties of materials must be considered.
In many cases, the rubber material through its surface and surface properties to participate in the work.
The modification by changing the surface properties of the rubber can meet the specific purpose or to give the rubber some special properties based on that it does not affect the substrate nature of the rubber.
This paper tests the friction properties of the sample under the conditions of dry friction and water lubrication.
[5] Slusarki L, Bielinsli D M, Affrossman S: Surface modification of elastomers to improve their tribological properties.

Plastic moulded gears offer some unique properties that are not achievable with metal based gears.
From the results of ANOVA in Table 3, the bamboo loading percentage appears to be the key parameter affecting the wear in an engaged gear pair.
From the result of ANOVA, bamboo loading percentage is considered as the most significant factor affecting the wear in plastic gear.
Yu, The effect of ages on the tensile mechanical properties of elementary fibers extracted from sympodial bamboo species, Inds.
A comparative study of mechanical and comfort properties of bamboo viscose as an eco-friendly alternative to conventional cotton fibre in polyester blended knitted fabrics, J.

It analyzes measuring method of working fluid conductivity on the MSWEDM through the study of the working groove equivalent circuit model and the main factors affecting the conductivity measurement.
According to the theory and practice show that [2,3] in the WEDM Process, properties of working fluid will change ,the conductivity change is relatively large, which is a great impact on the WEDM, it is mainly the existence of "leakage" phenomenon in the process of discharge.
Fig. 1: Equivalent Circuit Model of Working Groove Factors Affecting the Measuring Solution Conductivity.
And but it is difficult or impossible to get values of the polarization resistance, because many factors affecting polarization resistance, such as the voltage values between the two poles, voltage duration and type of solution etc.
The environment temperature is the biggest external factors of directly affect the conductivity change of solution, which will affect the solution concentration, solubility, ion migration velocity and the viscosity of the solution.

The work presents a Mossbauer study of changes in the structure and phase composition of Fe-Cr-Co-W-Ga alloys with mechanical and magnetic properties appropriate for a new application of them as materials for rotors of high-speed engines.
This was favored by a series of researches in which the authors managed to realize a good combination of magnetic and mechanical properties in the Fe-22wt%Cr-15wt%Co nanostructured alloys via alloying with Ga and W and different heat treatments [1].
Further studies were aimed at searching a way of gaining the required properties on alloys with lowered concentrations of Cr and Co, and compositions with improved mechanical properties were obtained, though with a somewhat lowered coercivity [3].
In Fig. 5, three-core distributions are shown for the alloys remarkably different in properties.
This characteristic also affects magnetic and mechanical properties.

In this paper, pure metals aluminum was used to study the effects of pulse current on their mechanical properties.
Figure.2 Influence of pulse current on elongation and the tensile strength Analyses Analysis of pulse current on the mechanical property of plastic deformation.
In this experiment, pulse current has a greater impact on the mechanical properties of aluminum 1A99 during stretching: with the rose of elongation, the decline of the tensile strength, which is called electro-plastic effect.
Based on the detailed analysis made above, effects of pulse current on tensile samples can be concluded that their mechanical properties and stress distribution is changed.
In order to acquire the accurate temperature, we should correct the surface emissivity, which was affected by complex factors and increased the difficulty to process the result of a measurement.