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The significance sequences of technology parameters affecting SCI are factor A, E, C ,B and D.
Thereby, the paper presents the relational model of the main factors affecting SCI and analyzes experiments results via orthogonal design of experiment, it will offer technical supports for surface quality control of metal forming.
Based on the sum of mean deviation, significance sequences affecting SCI is E>A>C>B>D.
The results show that significance sequences of technology parameters affecting SCI are factor A, E, C, B and D.
Final results show the superior parameter affecting SCI is , the inferior is E(holdblanker force), yet factor E can be neglected according to forming conditions.

The resin content is one of the most important factor on which has a direct impact on physical and mechanical properties of the railway sleeper[2].
Fig.1: Schematic diagram of hot curves 1.3.2 Physical and mechanical properties testing Reference to the provisions of the detection method, it uses universal mechanical testing machine, SANS computer control electronic universal testing machine to test physical and mechanical properties of composite materials[6]. 1.3.3 Data Analysis Analysis of experimental data by using DPS data processing system,it studies the significance of impact of various factors on the indicators when significant level is at 0.05 such as α=0.05. 2.
Testing the impact of resin content on the physical and mechanical properties of composite materials.
No. physical and mechanical properties regression equation Correlation coefficient 1 2h TS Y=0.09X2-2.691X+29.6965 r=0.9994 2 MOR Y=-1.7467X2+38.61X-155.7859 r=0.9992 3 IB Y=-0.015089X2+0.400936X-1.891 r=0.9992 Fig.2: Regression curve on resin content and physical and mechanical properties(2h TS,MOR,IB) 3.
The preparation of the physical and mechanical properties in my research meets or exceeds the relevant national standards.

Mechanical Properties of Winding Conductors Affected by Cyclic Thermal Overloads N.
The influence of thermal cyclic overloads on mechanical properties of winding conductors was investigated.
Mechanical properties of microcomposite conductors depend on various factors such as internal structure, the dimensions of the cross-sections, drawing technology, and intermediate heat treatment between stages of the plastic deformation [9 - 10].
a) a) b) a) b) Conclusions The influence of cyclic thermal overloads on mechanical properties of winding conductors was investigated.
As was expected the thermal overloads did not influence the mechanical properties of pure copper wires.

Microstructure and mechanical properties of friction stir welding joint of pure copper Yong Zhao1, a , Youli Ye1,b, Keng Yan1,c and Lilong Zhou1,d 1 Provincial key Lab of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003，China azhaoy418@sohu.com, byoulilaomu@163.com, c yankeng@126.com, d longvis@sohu.com Keywords: Pure copper, Friction stir welding, Microstructure, Mechanical properties.
Microstructures and mechanical properties of pure copper weld joints are discussed under different parameters of friction stir welding.
The microstructures and mechanical properties of the welded joints were also analyzed.
After welding, the microstructures characteristics and mechanical properties of the welded joints were also analyzed.
The rotation speed of the tool has an impact on welding heat input and could soften the material plastic flow, consequently affecting the microstructure and mechanical property of the joint.

The dynamic mechanical properties of radial and chordwise bamboo pieces were tested by dynamic mechanical analysis(DMA).
Chordwise curtain plybamboo and radial curtain plybamboo are mainly used for the concrete form, their mechanical properties will be affected with the changes of using environment, such as temperature, humidity, and external force.
Therefore, their dynamic mechanical properties can more reflect the real situation of its using conditions than the static mechanical properties.
The dynamic mechanical properties of the basic unit of curtain plybamboo is one of major factors for affecting its the dynamic mechanical properties.
Dynamic mechanical properties were tested by 3 point bending at 30℃-250℃, and the heating rate was 5℃/min, and the frequency was 1Hz.

In FDM, the mechanical properties of a 3D-printed part are greatly affected by the build parameters such as the raster angle, extrusion temperature, layer thickness, and infill.
A study was carried out in [5] that investigates the effect of the build orientation on the mechanical properties of FDM fabricated parts using ABS as the filament.
The responses included in this study are selected mechanical properties of the FDM-printed part i.e. compressive strength and impact resistance.
Ziemann (2012), “Anisotropic Mechanical Properties of ABS Parts Fabricated by Fused Deposition Modelling”, vol. 2, 2012
Pregger, “Effect of Layer Orientation on Mechanical Properties of Rapid Prototyped Samples”, Materials and Manufacturing Processes, vol.15 no. 1, pp. 107-12, 2000

In this paper, the researches on the mechanical properties and oxidative damage of the gas film holes at home and abroad in recent years have been systematically introduced.
Therefore, the study of mechanical properties and oxidative damage of gas film holes has attracted much attention.
However, few researches on the influence of gas film holes on the mechanical properties of turbine blades, especially on the impact of fatigue performance.
Wall thickness and gas film holes are the main factors affecting the creep life of the simulated specimens.
Defects and transport properties of metal oxides[J].

The mechanical properties of graphite is very low, it is a great influence on the mechanical properties of gray cast iron on shape, size, number and distribution of graphite.
The test shows that, the increasing of carbon content can effectively improve the mechanical properties of the casting.
In the casting process, excepting the carbon equivalent, there are other factors affecting the properties of casting.
For this test, the carbon content is a major factor, but under different circumstances, the main factor affecting on the performance of the casting is different.
We need to find the main influence factors according to the actual situation and obtain high strength and appropriate hardness gray cast iron, thus improve greatly the mechanical properties of gray cast iron.

Effect of Orientation and Temperature on the Mechanical Properties of Commercially Pure Titanium M.
a Michael.Battaini@eng.monash.edu.au Keywords: Commercially pure titanium, mechanical properties, hardening, twinning, EBSD, texture.
Twinning was also found to be the most significant factor affecting work hardening behaviour, with reorientation hardening occurring for some sample orientations.
From the beginning of research on the mechanical properties in titanium the role of twinning and the factors affecting its operation have been in dispute.
properties of the commercially pure titanium.

In order to improve the machinability of GDL-4 tool steel, the factors influencing the machinability, such as the thermal property, work hardening exponent, carbides were studied comparing with M2 in this paper.
The results show that under the same cutting condition, the thermal property is the key factor which makes the machinability of GDL-4 worse, and Si is the key element affecting the thermal property.
In this paper, the physical properties of GDL-4 steel which influence the machinability were studied and compared with M2.
The cutting temperature is the main factor affecting the machinability of GDL-4 steel, because the high cutting temperature makes the belt saw softened. 2.
Thermal capacity and thermal conductivity of GDL-4 steel are the main factors affecting the cutting temperature. 3.