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For synchronous motor [4], all the heat source is from the stator, the generated heat will affect machining accuracy.
On the one hand, the wall thickness has a greater effect on the cooling of the stator, and directly affecting the total area of cooling.
Usually, the convection heat transfer coefficient , hf, depending on many factors, such as the cause of the fluid flow, the flow state of the fluid, the physical properties of the fluid, especially the geometric factors (shape, size, roughness) of the cooling pipe and so on, can be expressed as , the calculation model is formula (1), (1) Where Nuf is the Nusselt number of the fluid [5], which is a material parameter of the fluid and calculated as formula (2); λf is the thermal conductivity of the fluid (W/(m•K)); de is the equivalent diameter of cooling pipe cross-section(m) and expressed as formula (4)
Firstly, the property parameters of the fluid can be obtained by checking physical property manual.
Known conditions: the fluid properties parameters (such as density, specific heat capacity, kinematic viscosity, etc.) under different temperature and the mechanical and physical properties (such as yield strength, elastic modulus, etc.) of stator; Selective conditions: the flow rate, Q, of the cooling oil.

The widespread use of this steel is due to its unique property - an increase in mechanical and operational properties under the influence of shock loads.
Results and Discussion The slag mode of the steelmaking process significantly affects the mechanical properties of alloy elements steel, especially impact strength.
We know that in order to ensure the highest values of the mechanical properties of steel, the minimum amount of aluminum in the alloy is required not to exceed 0.041%.
This significantly reduces the mechanical properties of steel.
The quality of the alloy is affected by technological factors such as the sequence of technological operations in melting and the basicity and oxidation of slag. 2.

In order to study the effect of temperature changes on the dissipative properties of materials, two approaches are used.
An analysis of the above-mentioned studies shows, that when studying the effect of temperature on the deformation properties of materials using the hereditary theory of a viscoelastic medium, often turns out to be inconvenient, since calculations are very difficult for non-isothermal processes, and for nonlinear processes, the temperature shift factor depends on both temperature and voltage [12, 13].
Problem Statement The purpose of this work is to investigate the effect of temperature changes on the dissipative properties of materials.
Slavikov, Improvement of the experimental method for studying the dissipative and strength properties of polyurethane, Vestnik PNIPU․ 2 (2013) 145-153
Ferry, Viscoelastic properties of materials, Pub.

In addition, its basic mechanical properties will also be characterized by dynamic mechanical analysis (DMA).
Ltd.) was used as the electrophoretic polymer considering its chemical and physical stability, good corrosion resistance and dielectric properties.
When the properties of the electrophoretic polymer film are stable, how to precisely control its thickness is a key factor whether it could be widely used in MEMS or not.
Some basic mechanical properties of the polymer can be obtained, such as tensile strength (σb), strain (ε) and Young’s modulus (E).
Some of fabricated samples were respectively tested on several points to obtain an average value of each mechanical property.

Tool technology is key factor which will make influence to the efficiency and precision of HSM.
The failure of the HSM tool is mainly depends on the thermal properties which include Melting point, heat resistance, oxidation resistance, high temperature mechanical properties and thermal shock resistance.
Selecting the materials for high-speed machining tool must match with processing properties of the object, which mainly refer to the mechanical properties, physical properties, chemical properties of processing objects.
This is the important factor that the BIG-PLUS structure can popularize in HSM.
Zhou, et al: Mechanical design and manufacturing, (2005), p. 128-131 [5] S.L.

However, the mechanical properties of the composites prepared by conventional casting routs were not satisfied due to the large size and un-modified morphology of the primary Mg2Si particles.
Consequently it is anticipated that by densification of the VCS samples via thermomechanical processes, a considerable improvement in the hardness and mechanical properties of these composites can be achieved.
Emami, Effect of Mn addition on the microstructure and tensile properties of Al–15%Mg2Si composite, Mater.
Von Oldenburg, Microstructure and mechanical properties of mechanically alloyed intermetallic Mg2Si-Al alloys, Z.
Pai, A simple inexpensive technique for enhancing density and mechanical properties of Al-Si alloys, J.

Due to its lower mechanical properties it is continuously being replaced by harder grades in new installations, especially in higher loaded track sections, such as heavy haul transport, low radii bows, high train frequencies or high speed sections.
Table 1: Chemical composition and mechanical properties of selected pearlitic rail steels as defined in European rail standard EN-13674-1 [4].
The morphology of the pearlite affects the mechanical and fatigue properties of steels [9].
This should specifically take into consideration influencing factors of the pearlitic phase transformation.
Le May, “Effects of Microstructural Parameters on the Mechanical Properties of Eutectoid Rail Steels,” Mater.

For items to be used clinically, the optimal mechanical, physical, and biological properties of a suitable metal joining technique must be determined.
Regarding mechanical properties, soldered Co-Cr alloy joints have shown higher tensile strength than laser-welded joints [1].
This also included the heat-affected zone of laser-welded joints.
These factors could be lower corrosion resistance of laser-welded Co-Cr alloy joint.
Atsuta, Mechanical strength of laser-welded cobalt-chromium alloy.

The relationship between mechanical properties and microstructure is also discussed.
Mechanical properties of the alloy were evaluated by hardness test using a 430SVD Vickers hardness tester.
The shear band is an important factor affecting properties of the alloy, such as mechanical behaviors.
The results demonstrate that mechanical properties of the Cu-24wt.
%Ag alloy versus layer spacing of the Cu-24wt%Ag alloy The mechanical properties of Cu-24wt.

In addition, the fine grain growth orientation of laser cladding layer improves the mechanical properties of alloy, which is better than that of casting and forged alloy.
Therefore, the main affecting factors for the forming of laser cladding coating are laser power, laser scanning speed and powder feeding rate, protective gas flow and defocusing of laser spot.
Besides the influence of many single factors on the ratio of width to height and the dilution rate of the coating, interaction among these factors also need to be considered.
Microstructures and properties of direct laser sintered tungsten carbide (WC) particle reinforced Cu matrix composites with RE–Si–Fe addition: A comparative study[J].
Cemented tungsten carbides: production, properties and testing [M].