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Research on Cutting Force Simulation for Francis Hydro Turbine’s Blade Based on VERICUT Lei Wua, Yanchao Yinb, Zhuang Xiongc, Yilong Yand Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology Kunming, China, 650500 ajxzzwulei@163.com, byinyc@163.com, c xz394561777@163.com, djskdyanyilong@163.com Keywords: Francis Hydro Turbine’s Blade; Cutting force simulation; VERICUT Abstract.
Introduction Cutting force is one of the most important factors that affect the quality of parts machining and the life of cutting tool.
It can be impacted by many factors such as the properties of parts materials, cutting parameters and cutting fluid.
[6] Min Wang : Mechanical Engineer,(04): 1002—2333.(2013).

This microstructural features might negatively affect final mechanical properties, mainly toughness [37].
In contrast, when higher initial rolling temperatures are selected, the precipitation is delayed without affecting the initial microstructural refinement.
Conf. on Processing, Microstructure and Properties of Microalloyed and Other Modern HSLA Steels (AIME, Warrendale 1991), p. 23
Conf. on Processing, Microstructure and Properties of Microalloyed and Other Modern HSLA Steels (AIME, Warrendale 1991), p. 201
Glodowski: 42nd Mechanical Working and Steel Proc.

Therefore, it was very important to study the mix ratio, basic property and durability of the autoclaved aerated concrete for satisfying the production demand and improving its performance.
Table.4 Testing results of Performance for Autoclaved Aerated Concrete Block Testing Item Standard Testing Result Dry Density ≤ 625 kg/m3 617 kg/m3 Compressive Strength Average Value ≥ 3.5 MPa 3.8 MPa Minimum Value ≥ 2.8 MPa 3.1MPa Freezing Resistance Strength after Freezing ≥ 2.8 MPa 3.0MPa Mass Loss ≤5.0% 4.2% Radioactivity External Exposure Index ≤1.0 0.54 Internal Exposure Index ≤1.0 0.13 Dry Shrinkage Value ≤0.5 mm/m 0.38 mm/m Thermal Conductivity ≤0.16 W/m.k 0.081 W/m.k Heat Transfer Coefficient —— 1.09 W/m2.k Property Analysis of Autoclaved Aerated Concrete Block Pore Structure of Autoclaved Aerated Concrete Block.The autoclaved aerated concrete block is a kind of light block with highly dispersed pore structure and its physical and mechanical properties are affected directly by some factors such as air bubbles, pore distribution, wall thickness of pore, hydrating production kinds, crystal degree and so on.
Fig.3 Relation between Rate of Volumetric Water Absorption and Time for AAC Block Research of Shrinkage Property for AAC Block.
Structure and Properties of Aerated Concrete : A Review[J ] .
[6]N.Narayanan K.Ramamurthy Structure and Properties of Aerated Concrete: Areview[J].

Variation of Heat Dissipation Properties of LED Packages with Thermal Vias Hyo Soo Lee1,a, Hyeong Won Shin1,b, and Seung Boo Jung2,c 1 Advanced Material Division, Korea institute of Industrial Technology, 7-47 Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea 2 Dept. of Adv.
This excess heat should be conducted away from the LED die to circuit boards or heat sinks since heat affects directly performance of the LED.
The strucure of thermal via was drawn also as Fig. 1, which was the same as a pin-through hole in printed circuit board formed by mechanical drill process.
Chracterization of thermal properties of the LED were carried out by a 2 type of experiments.
And it was observed that the copper volume of inner layer in thermal via was dominant factor on the heat dissipation, which was also exactly correlated with thermal resistivity of each specimen.

The mechanics properties of the geopolymers are complex and affected by a large variety of synthesis parameters, including the material properties, raw material polymerization degree, the chemical composition of the geopolymeric binder, the relatives fractions and the non-actives charges, inactive fillers characteristics, porosity and density, impurity elements and the associated parallel reactions [3].
Therefore, the factor influenced by the alkaline solution concentration and the metakaolin, will significantly affect the physical and mechanical properties at the end of the synthesis geopolymerization.
Mechanical resistance of the geopolymer with a cure time of 13 and 20 days.
Mechanical resistance of the geopolymer with a cure time of 7 and 28 days.
Davidovitis, Properties of geopolymer cements.

In the recent years, the studies on the mechanical behaviors of various materials subjected to biaxial loading have been worked since they are more complicated and intrinsically different from those under the simple uniaxial condition.
For example, the solutions using purely elastic formulations involving the crack tip stress intensity factors are not theoretically affected by the lateral stress component [1,2].
But, it has been widely verified that biaxial stresses affect the behaviors such as the direction of crack propagation [3,4], the fracture toughness or breaking strength [4, 5], and the fatigue crack growth rate [5, 7].
The size of the specimen should be large enough to minimize boundary effects on crack tip stress intensity factor; but it should not be too large, so that the required load levels can be kept within the capacity of the testing machine. 2.
Its physical properties are that f=6.993 kN/m, E=2.5GPa and =ν 0.38, where E and ν are Young's modulus and poisson's ratio, respectively.

Together with plasma factors they facilitate the formation of fibrin.
The collagen matrix also gives additional reinforcement and so gives better mechanical properties to the healing bone [4, 5].
It is for these reasons that we took into account the use of a collagen scaffold and not for the haemostatic intrinsic properties.
This involves the enhancement of the osteoinductive effect without the possession of osteoinduction properties by releasing coagulating factors during the contact of the scaffold with the blood vessels.
Several materials factors can greatly affect the extent of bone response to the implant, including the surface roughness, the porosity, the interfacial forces, the surface charge, and the chemical composition as well as the extent of leaching of chemicals into the tissues.

The mechanical properties of the roots were determined and tested on individual roots in the laboratory and measured for every two months.
Tr=FmaxπD24 (Eq.1) Tensile strength of roots depends on its physical and the mechanical properties.
Plant root alone cannot improve the soil strength but certainly will promote some level of stability in which is dependent on many other factors.
Factor of safety (FOS) of unrooted and rooted slope Factor of Safety Slope Unrooted Rooted A 4.97 1.50 B 6.33 1.87 C 3.69 - Conclusion The relationship of physical and engineering properties of Eugenia Oleina shows that as the diameter increase, the tensile strength decrease.
“Root biomechanical properties during establishment of woody perennials.” 

Boric acid (H3BO3) is one of the most popular solid lubricants and has excellent lubrication properties without calling for expensive disposal techniques [4].
Boric Acid (H3BO3) is one of the most popular solid lubricants and has excellent lubrication properties without calling for expensive disposal techniques.
Several studies related to the lubrication properties of boric acid are carried out over the past several decades [12].
It is because there are some factors can influence the surface roughness during machining like tool geometry and process parameters.
The decrease in surface roughness due to boric acid can be atrributed due to the inherent lubricating properties even at high temperatures [4].

The banded structure seems not to affect the general behaviour of nanocrystalline electrodeposits.
These composite cellular materials can offer enhanced mechanical strength at low density [2-4].
The amount of plastic deformation that can be supported by the nanocrystalline material before fracture is controlled by factors such as the grain size and grain size distribution [3,5].
The aim is to investigate if the presence of this banded structure affects the properties of the nanostructured material and if nanomaterials with banded structure are suitable for application as reinforcement in composite cellular materials.
However, more measurements of the mechanical behaviour are required.