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Material cutting properties can be judged by turning temperature and chip shape.
There are many factors used to evaluate the cutting performance of gear steel, such as cutting force, turning temperature, chip shape and surface roughness etc.
Turning temperature and chip shape are the main factors we concerned.
The experiment was carried out to research if new method can accurately reflect the cutting properties of materials.
But this chip is very lengthy and easy to intertwine each other and break thermocouple, affecting the turning process.

The surface of the patch will form the high stress area, that affects UAV using life and safety .But repair method is good or bad directly affects size of the high stress area.
Because of weather or other accidental factors, wings of UAV often have local damages that have holes, cracks and so on.
These damages will not affect body structure of UAV, but a local high stress area will be produced during the flight training.
It analyzed mechanical effect on hole of wings to aviation safety, and provided reference to make the plan of holes filling.
Material property is: E1=181GPa, E2=10.3GPa, E3=10.3GPa, PRXY=0.1677, PRYZ=0.1677, PRXZ=0.035, GXY=7.24GPa, GYZ=4.94GPa, GXZ=7.24GPa。

This process has a significant impact on the steel-rolling forming, rolling post-processing process and product mechanical properties in the macroscopic level.
The low plasticity of the martensite has been shown the feasibility of low temperature rolling. combineorganization of steel ultrafine theory, temperature plastic deformation and Strip Rolling forming for the purpose of improving the mechanical properties by researching on lower rolling temperature, microstructure refinement, phase transformation strengthening and carbide precipitated mechanisms.
Samples obtained tensile properties testing has shown that the use of the process in addition to has high tensile strength and its relatively low yield ratio, percentage total elongation at 20%[7].
The significant change of organization performance could affect the rheological behaviors of material, and then affect the deformation of next way.
But because of many influencing factors and complex mechanism, the law of material organization changes is not revealed in the process of warm rolling, especially the organization transformation process under the mutual action of deformation and temperature is still lack of research.

Specimens composed of columnar grains or single crystal exhibit excellent tensile properties.
But titanium will react with all commercial ceramic mould materials, which in turn affect the microstructure and mechanical properties.
Withdrawal velocity is an important factor affecting the macrostructure.
Fig.4 Calculated temperature field 1) v=3mm/min, 2) v=6mm/min Tensile properties.
Withdrawal velocity is the significant factor affecting the macrostructure and solidification front changes when it changes from concave to flat and then to convex with the decreasing of withdrawal velocities. 4.

The influences of factors on silicon rubber performance were investigated such as raw rubber dosage, thermal-resistant additive dosage and process conditions.
Effects of vinyl content on the properties of addition silicone rubber.
Properties and research progress of silicone rubber.
Research progress of aging properties of silicone rubber.
Regulai bimodal polydimetyhlsiloxane networks. e-lastomeric properties of the tetrafunctional networks.

Introduction Aluminum alloy 6005A is medium strength, good mechanical properties, excellent corrosion resistance and good weld ability, and excellent thermal extrusion performance.
Research on aluminum alloy 6005A mechanical properties, welding ability, and welding technology has been reported in a large number of domestic and foreign literatures.
Parameter C, characterizing the dynamic mechanical properties of materials, can be obtained from the stress-strain curve at high strain rate by dynamic struts SHPB experiment.
According to the dynamic mechanical properties similar with that of aluminum alloy 6005A given in the literature [11], the values of parameter C is constantly revised through comparison between simulation and experiment to take ultimately 0.2, where the cutting process is more in line with real cutting conditions.
Considering tool strength and stiffness factors, tools of helix angle 30°, 45° and 55° are selected for aluminum side milling process simulation.

Forming mold is a core part of the vacuum brick extruding machine, its mechanical properties directly affect the performance of vacuum brick extruding machine and the quality of bricks.
The cross section size, length and taper of machine mouth base on brick machines, size of bricks, type of materials and other factors.
The temperature of the machine mouth is an important factor in the molding process of the brick.
Thus affect internal quality and surface state of the brick [12].
With the current research status on the development of the vacuum extruder mold, some trends can be summed up as follows: (i) Vacuum extruder mold design, improvement and optimization as well as advance in technology are inseparable from the physical characteristics and mechanical properties of the blank awareness and research, and different blanks have different physical characteristics and mechanical properties, which greatly increase the complexity of the mold design.

The Specific power output increases as the thermal efficiency of the engine increases due to the above stated factors.
Table 1: Properties of Zeolite molecular Sieve 13X PARAMETERS UNIT TARGET Shape Pellet Sphere Diameter [mm] 1.5 3.3 4 3 CO2 adsorption [NL/g] >15 >14 >14 >15 N2 adsorption % 89 91 93 94 Initially the air is supplied at 2-3 bar pressure using a 2HP air compressor.
Practical design of PSA oxygen plants depends on many factors, including bed length, diameter, zeolite bed packing, and rate of air flow.
SFC is affected by oxygen enrichment due to the change in the equivalence ratio as oxygen concentration in the intake air changes.
Manifold pressure increase is one of the factors that improve the mean effective pressure [3].

Introduction Erosion is a complex process affected by many influencing factors and it has long been recognized as a potential source of problems in oil and gas production systems.
Material properties.
Material properties have a significant effect on erosion.
Steels and other metals generally show ductile erosive properties [5-7].
Important factors determining the particulate erosion rate are: the sand flow rate, the physical properties of the fluid (density, viscosity, temperature, et al) and the size, shape and hardness of the particles.

Considering aerodynamics, structural mechanics, artistic style and some other factors, profile generally needs to be bent into certain curvature [2-4] and the bending quality becomes a key technology which influences assembly accuracy and service life of modern cars and aircrafts, directly relating to the research development and guarantee of device performance.
The A6N01S-T5 mechanical properties are shown in Table 1 and the section of given profile in Fig.1.
Table 1 Mechanical property of the A6N01S-T5 aluminum alloy Young Modulus[Mpa] Poisson’s Ratio Yield Strength[Mpa] Tensile Strength[Mpa] Elongation % 69000 0.3 285 321 12 Finite Element Model of the Profile Bending Process Modeling and simulation analysis proceeded with the explicit, dynamic version of FEA software.
Effects of Bending Radius on the Forming Quality Bending radius is another important parameter affecting the accuracy of shape.
Springback is another key factor affecting the forming accuracy and the research of springback has drawn a number of conclusions [7-8].