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The main mechanical and thermal properties of work material are summarized in table 1.
Table 1: Mechanical and thermal properties of PEEK CF30 composite Mechanical and thermal properties PEEK CF30 Unit Tensile modulus 7700 MPa Density 1.41 g/cm3 Coefficient of thermal expansion at (< 150ºC) 25x10-6 m/m/K Coefficient of thermal expansion at (> 150ºC) 55x10-6 m/m/K Table 2: Machining parameters and their levels Low Medium High Cutting speed (m/min) 100 200 300 Depth of cut (mm) 0.25 0.75 1.5 Feed rate (mm/rev) 0.1 0.15 0.20 Dry turning experiments were carried out on a GORATU G CRONO 4S CNC machine.
Suitability of a given solution depends on various factors including user’s choice and problem environment.
Fig. 2 Simulation results for Population 500 and generation 100 By analyzing figure 1, the lowest value of machining force is obtained at point A, but the specific cutting pressure is greatly affected at that stage.
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture.

Its electrical life and work reliability are mainly affected by arc erosion [4-6].
The arc erosion properties of Ag/LSCO(12) contacts was tested on the electrical contacts model tester(JF04C, Kunming Guiyan Jinfeng Technology Co., Ltd.
Morphological characters and erosion mechanism Material erosion and its morphology during operation of electrical contact are the results of many factors, and the formation mechanism is complex.
Thus cauliflower structure can greatly reduce the arc erosion resistance and mechanical properties of the Ag/LSCO contacts.
Gas bubbles in the molten pool burst and release energy under the arc, weakening the mechanical strength of cantacts.

The elementary mechanical properties of concrete, such as strength and durability, encourage its use in all types of construction.
Weak ITZ and poor bonding between the aggregate and cement paste in CWAC composition were observed due to the aforementioned factors.
Summary Ø After the investigation of results, concluded that the physical properties of natural CA and CWA are not same and are differing by about -16 to 60%, however the properties are inside the range specified by IS: 383-1970 [11].
Properties of concretes produced with waste concrete aggregate.
Mechanical properties of brick aggregate concrete.

Anisotropic friction results from anisotropic distribution of the asperities and hollows on the contacting surfaces and/or anisotropy of mechanical properties of materials.
We can see how the anisotropy on the tribological properties and the fretting orientation affect the mentioned contact variables.
(a) (b) (c) Fig. 11: Resulting wear depth distribution after 18000 cycles for: (a) α = 0o, (b) α = 45o and (c) α = 90o.Table 1: Mechanical properties of IM7Carbon/8551 − 7.
The carbon FRP considered is IM7 Carbon/ 8551 − 7, whose mechanical properties can be found in Tab. 1.
(b) Tribological properties principal axes orientation relative to the rolling direction.

It reflects mutual influence of process factors on the elastic medium contact pressure value for the rotary method of medium action on the parent sheet.
Using the obtained equation, the diagrams of experimental distribution of contact pressure for optimum values of process factors were plotted by calculation and experiments, and they were graphically compared with similar diagrams obtained by means of numerical investigations.
The optimum combination of design and process factors (punch curvature, relative dimensions of elastic diaphragm, degree of its upset distance, etc.) was determined.
These factors ensure the achievement of expedient width of the uniform elastic medium pressure zone (40 to 50 mm) and the level of operating pressure in it (100 to 140 MPa), sufficient for implementation of separating process.
Such diagrams enable estimating the possibility of performing separating operations by rotary action of a tool on the parent sheet during die cutting of parts with various geometric shapes, a wide range of thickness values and mechanical properties of materials.

The authors analyzed the papers of some scientists and carried out the quantitative assessment of the wear rate of erosion- treatable plates depending on different factors.
Geometrical parameters of the inducers also affect the cavitation degree.
Gusev, Nanocrystalline Materials: Generating Methods and Properties, Russian Academy of Sciences.
Sosnin and others, Mechanical Engineering.
IV-3 Mechanical Engineering, Moscow, 1998

However, it is in combination with binders that they realize their unique properties, giving solutions fundamentally new and important properties.
The setting time of gypsum depends on many technological factors.
From the above data, it can be seen that the addition of B practically does not affect the water-gypsum ratio.
Effect of chemical modifying additives on the setting rate and other properties of the gypsum composition Experience No.
The softening factor is 0.70, which indicates its high water resistance.

Studies of the properties of dynamic mechanics Most of the studies of the dynamic mechanical properties are mainly focused on: The study of the effect of different strain rate and adding fiber on the dynamic compressive strength and deformation capacity of basalt fiber reinforced concrete.
On the basis of experiment, analyze both the advantages and disadvantages of fiber reinforced concrete’s engineering mechanical properties, engineering cost and cost as much as possible.
Basic mechanical properties research of chopped basalt fiber reinforced concrete.
Properties of glass concrete reinforced with short basalt fiber.
Energy absorption properties of basalt fiber reinforced concrete.

Petersen et al. [3] have analyzed product development using firm dependent decisions factors such as product quality and process selection and a SC design factor.
They differ in formability, weldability, corrosion resistance, and hardness properties.
The major factors that influence AA process selections are classified into three categories: material factors (mechanical and physical properties, alloy specification), geometry factors (part shape, envelope size, weight, dimensional tolerance, surface finish, secondary operations) and production factors (lead time, production volume and rate) [11].
These factors can be viewed as a forward design factors as it focuses on SC forward material flow activities.
In a context of a CLSC, it is necessary to consolidate these factors with the reverse logistics design constraints.

This may greatly affect the durability and life, and even lead to safety disaster [2].
However, limited by something such as properties of concrete and reinforcement, maintenance and humidity condition, craft for prestressing and so on, the NDT technique on prestressing strand is still start from scratch [3-5].
In procession of the experiment, there are altogether five factors which are sensitive to the accuracy of tested stretching force.
Conclusions ●Because this technique synthesize many aspects’ influential factors including local deformation, analogy boundary condition, bending and tensile stiffness of stretching cable wire etc, it has the advantages of clear concept and strong adaptability.
Mechanical Systems and Signal Processing, Vol. 20 (2006) , p. 2186