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Next to granules’ performance both of these properties can be directly influenced by 3D printing process parameters.
Some properties such as surface area, particle size distribution or primary particle size directly affect the flowability and processability of the powders.
The porosity, the surface area, and homogeneity of the granules are important factors to be characterized, since they determine the amount of binder required during the printing process.
Results of the flow properties of the granules as well as the green properties of the printed scaffolds are presented in table 2.
Various properties of the scaffolds before and after heat treatment at 800°C for 1h.

Introduction Successful paper feed is the main factor affects the copy velocity and this problem also exists in media transfer system such as fax, ATMs, Film developed machines etc.
Yue Wang [3] studies the property of rubber material in elastic resilience, friction coefficient and abrasion resistance.
Fully understanding the property of rubber material using in roller is another aspect to improve the efficiency of paper feed unit.
Most prior papers dealing with the paper feed unit problem focus on the paper property, however, they do not pay attention on the mechanical property, which is very important in the study of the successful and high-speed paper feed.
[4] Xuefeng Chen, Shengjun Yang, Junxing Ma, Jijun Xue and Zhengjia He: Mechanical Science and Technology.

Study on Tool Wear in Green Milling Ni-based Superalloy Hui Wang1, 2,a, Yun Lu1,b and Jingjing Liu1 1College of Mechanical and Electrical Engineering, Hohai University, Changzhou, CHN 2Engineering Research Center of Dredging Technology of Ministry of Education, Hohai University, Changzhou, CHN awhui1268@aliyun.com, bluyun082106@sina.cn Keywords: Tool wear, Green cutting, flank wear ,Ni-based superalloy Abstract.
Chemical composition of the material was given in Table 2 and the physical and mechanical properties of GH4169 were shown in Table 3, respectively.
Table 1 Tool geometry parameters Table Type Styles D γp γf γo αo κr κr’ λs Ф80mm 3.5o -6o 5o 6o 75o 15o -5o Table 2 Chemical components of the materials used（Wt）% Ni Cr Nb Mo Ti C Al Si Mn 51.75 17.00 5.11 2.93 1.04 0.042 0.41 0.21 0.03 Table 3 Physical and mechanical properties of the materials used Yield strength σs（MPa） Tensile strength σb (MPa) Elongation δ（%） Cross-section contraction ratio φ（%） Hardness HBS 1260 1430 24 40 390 Cooling and lubricating condition.
The tool wear experiment was proposed in single-factor method, the effects of water vapor and ionized air on tool wear with the change of milling speed (vc) , so the depth of cut(ap), width of cut(ae) , and feed per tooth (fz) were maintained as constant, just change the cutting speed (vc).
Table 4 The wear morphologies of flank face as cutting GH4169 conditions vc (m/min) 47.7 37.7 29.6 23.9 dry wet Water vapor Ionized air (2)Flank wear curve The flank wear with time as affected by cutting speed in different conditions were showed in Fig.1, where depth of cutting ap =1mm, feed f=0.1mm/r.As shown in Fig.1, as the cutting speed increased, tool flank wear reached the criterion rapidly, meas the tool life was decreased.

The advantages of semi-solid processing of alloys have longer die life, minimization of hot tearing tendency and modification of dendritic structure into globular structure, improvement in mechanical properties etc. [1].
Taguchi method is applied to find out the optimum settings for each process parameter and parameter combination at which semi-solid forging components are to be produced to achieve higher hardness tensile strength and other mechanical properties.
Table 1: Process Parameters with Levels Process Parameters Level 1 Level 2 Level 3 A: Forging Temperature (0C) 540 560 580 B: Percent Reduction (%) 0.4 0.6 0.8 C: Die Temperature (0C) 150 200 250 A356 aluminum alloy, popular in industrial products, is used for the investigation of mechanical properties.
The analysis of variance (ANOVA) is to investigate which process parameters significantly affect the process response.
Results of ANOVA (Table 5) indicate that percent reduction is the most significant process parameters for affecting the multiple process responses.

The layers have a higher protective mechanical and electrical parameters which are the key factors of the bulk aluminum properties.
Research on thin aluminum films can be conducted by studying the alumina layers on its’ surface due to its’ high mechanical values and low conductivity influences which is part of aluminum properties.
Lundqvist, Surface properties of metastable alumina: A comparative study of k- and α-Al2O3, Phys.
Barbot, Physical properties of Co/n-Ge Schottky contacts.
Yeyati, J. van Ruitenbeek, Quantum properties of atomic-sized conductors, Physics Reports, 377 (2003) 81-279

Introduction TC11 titanium alloy is one of α/β titanium alloys with excellent properties, especially high thermal resistance and remarkable corrosion resistance.
Mechanical properties and processing ability of the α/β titanium alloy greatly depend on its microstructure [3~4] .
Annealing treatment is a common way to change the microstructure and improve the properties of alloys [5~8] .
The theoretical (α+β)/β phase transformation temperature can be calculated by the following equation: Tα+β/β = 885℃ + Σ(content of element × influence factor) (1) where 885℃ is the (α+β)/β phase transformation temperature of pure Ti.
The morphology characteristic of α and β phases was not affected by the annealing treatment, while the thickness of the α phase increased with increasing annealing temperature.

Additional factors affecting the absorption of calcium by the metal may be the basicity of ladle slag and its oxidation.
Sr and REM) provides a significant reduction in the contamination of steel by NMI of all types as a result of the effect on the properties and behavior of NMI.
This contributes to more efficient removal of NMI and reduces the harmful effects of NMI on the properties of steel.
Influence of zirconium on mechanical properties and phase transformation in low carbon steel.

These buildings often suffer from various factors of damages within the period of its service, inevitably[1] [2].
It often occur that the actual stress area is reduced and the decrease of strength of materials due to wood truss structure easily be affected by insect erosion.
And the mechanical properties of steel will deteriorate as acid corrosion in the air.

Introduction Rock point load test should have more and more widely to determine the rock mechanical properties and rock mass steadiness grading.
According to the research of many scholars at home and abroad ，it is found that the point load strength index of the rock is not only have relation to rock its own characteristics and so on internal factors ，but also the specimen shape and size at doing point load test[1].
Rock point load strength directly affects the rock uniaxial compressive strength, in order to measure point load strength index more accurate and convenient, retrieve the nine groups of specimens for research.

Mohammadali et al. have compared the absorption properties of acoustic panels made of wheat straw with those made of different proportions of Aspen particles [5].
Yu et al. have tested the sound absorption capacity of some wooden building materials and analyzed the main factors that affect the sound absorption of wooden building materials [6].
Zhong has studied the structure, material characteristics, sound absorption properties and application of decorative perforated wooden panels.
As to the importance of technical requirements, their sequence is: H1> H3> H2> H5> H4> H6> H8> H7> H9, indicating sound-absorbing effects and price are the most critical factors, followed by environmental and decorative performances, while size and installing performance are comparatively inferior.
Mechanical Engineering and Automation, 2009,(1): p. 57-60