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However, when most modern materials having specific physical and mechanical properties are subject to machining, such processes are featured by discontinuous chip formation.
This is a trial undertaken to introduce an explanation of how the basic factors of the cutting process influence over parameters of chip formation.
Chip patterns are defined by cutting processes, tool geometry, physical and mechanical properties of materials under machine processing.
Occurrence of adiabatic shear bands at high cutting speeds increases tool wear thereby affecting the quality of machined surfaces of a workpiece.
An increase in the feed will increase the element pitch, showing higher increasing with enhancing mechanical properties of the machined material.

During the manufacturing process, the assumed mechanical properties may be changed drastically, e.g. through welding or machining, which in turn may cause the component to fail [6].
Apart from these physical factors, the weldability of a combination of dissimilar materials also depends on the welding method utilized.
One should expect different strain values under tensile stress as well as different ductility and hardness values as far as the mechanical and technological properties are concerned.
The decisive factor for the assessment of a potential material in view of its function fulfillment is the degree of matching between the requirements and properties profile.
Since during welding the material is subject to an unwanted heat treatment, changes in the mechanical-technological properties of the parent material cannot be avoided.

The experiment was designed based on a three factors five levels full central composite design (CCD).
It is found that all the investigated laser parameters are affecting the performance of the residual stress significantly.
Table 1 presents the process factors, their limits and coded values.
Therefore, a general optimization model should be run to determine the welding settings which satisfy all the requirements for all mechanical properties of interest [11].
Benyounis, Prediction and Optimization of Residual Stresses, Weld-Bead Profile and Mechanical Properties of Laser Welded Components, (PhD thesis, Dublin City University 2007)

In this paper, the forming processes, main effect factors and change law of the cutting direction burr in orthogonal cutting have been studied and related theories are analyzed based on the cutting experiments.
Main Influence Factors on Cutting direction Burrs In various machining operation, the cutting burrs are often formed on the side, corner and ends of a workpiece.
They seriously affect accuracy of the workpiece, especially deburring jobs become usually one of factors， which reduces productivity of machining system, and increases cutting cost of a workpiece in precision and automatic machining operations.
This is because of the difference of mechanical property of the workpiece material.
The Formation and Properties of Machining Burrs.

The manufacturing of aeronautic parts with high mechanical properties requires the use of high performance materials.
State of the art for hot machining The low machinability of titanium alloys is mainly due to its mechanical properties.
With increasing temperature, mechanical properties of all materials decrease (figure 1).
Mastered residual stresses (excessive value ones generate a fractured surface) improves the mechanical properties of the material.
In this case, there are irreversible microstructural changes affecting the mechanical properties of the material.

The reason may be that the research on the mechanical properties of laminated glass with PVB film has not been conducted in domestic yet, which result in lacking of experimental data to support the material parameters, inaccurate understanding of the mechanical model of the laminated glass and corresponding numerical simulation, The shear resisting is a main factor affected the performance of PVB film, and there hasn’t experimental research on the shear modulus in China yet.
As mentioned above, the shear performance of PVB is a crucial factor affected the performance of laminated glass, it is necessary to study the shear resistance of PVB film.
On the other hand, as we all know the main factor affected the bearing capacity of laminated glass is deflection under uniform loading.
Properties of PVB interlayer used in laminated glass.
Viscoelastic properties of polymers, 3rd Ed., John Wiley & Sons,New York, N.Y. , 1980.

In the actual machining process, there are many factors that affect the milling and the interacting mechanisms are very complex, thus the leading factor needs to be found.
DEFORM-3D has a rich repository of materials, and it can be customized according to the material properties, among which hardened tool steel Cr12MoV is matching to the AISID2 (Cold) of United States, and the tool material is Carbide WC.
Reasonable separation criterion can closely reflect the real situation about the mechanical and physical properties of the workpiece material, and can directly affect the simulation results of cutting force, chip shape and cutting hot.
Cutting parameters such as spindle speed, feed per tooth and cutting depth, are the main factors that affect cutting force and cutting temperature in the high-speed milling.
As the hardness increases, the chemical bonds between atoms in the material are connected more closely, which forms metal material physical properties of being relatively stable.

Its properties and structures were characterized by the porosity, bulk density, flexural Strength, XRD, SEM and EDS.
The effects of particle grade and sintering temperature on its properties were studied.
SEM and EDS analysis indicated that a larger of wisker like α-Si3N4 and some little β-Si3N4 are found coating with SiC, giving its excellent mechanical properties.
From Table 1, we can see the order of these factors on pack density SiC1> SiC2>SiC3.The pack density the largest is 2.0 g/cm3 when particles grade match of SiC1: SiC2; SiC3 is 40:20:10 (by weight).
factors NO.

The composite materials are high on demand in various applications, because of the wide range of properties that they offer.
One of the major factors that influence the outcome of the pre-forming is the geometry type.
Lower density generates local weaknesses in terms of the mechanical properties contrary to the increase in the density, which is desirable.
Based on that, the density decrease percentages are measured, because it creates local weaknesses in terms of the mechanical properties.
As an out-of-plane defect, the outcome will alter the thickness of the fabric leading to a change in the mechanical properties.

Mechanical properties were tested and compared at different temperatures and stress conditions.
Which convert the chemical fuel gas into electrical energy via electrochemical reaction. it has the double advantages of non-polluting and high power generation efficiency.The service-life of the fuel cell stack is an important factor which had a major influence on its commercialization.The anode creep and high temperature corrosion are the major factors affecting the service life of MCFC.
Cu and Ni have similar chemical properties, and its thermodynamic stability under fuel cell anode atmosphere is relatively stable through calculation.
Since MCFC is stacked by a plurality of cells, and wrapped by the outer seal parts, the anode materials are subject to the pressure load under the working conditions, it’s very important to study the compression performance of the anode materials. especially there’s no report on the study of creep properties of porous copper alloy about the Cu alloy.
L.J, Ashby, M.F, Cellular Solid: Structure and Properties.