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Online since: March 2017
Authors: Khaled A. Abou-El-Hossein, Kumaran Kadirgama
This metal has a wide range of excellent mechanical properties which couldn’t find in any other alloy.
Since these designs are ratable, therefore, it required minimum 3 level of factors.
After run some preliminary test, the appropriate levels of factors were used to actual machining test.
Table I shows the level of factors to be design.
The chemical composition and physical properties of the workpiece material is shown in Table III and IV [14].
Since these designs are ratable, therefore, it required minimum 3 level of factors.
After run some preliminary test, the appropriate levels of factors were used to actual machining test.
Table I shows the level of factors to be design.
The chemical composition and physical properties of the workpiece material is shown in Table III and IV [14].
Online since: June 2015
Authors: Bing Zhang, Bo Wang, Xiao Feng Liu, Yong Gang Zou
For many recycled plastics, materials with different rheological properties and melting points are usually mixed together, and can not be separated.
Finite element simulation is calculated to analyze the relationship between operation factors of pelleting process and blocking situation of die holes.
Because recycled plastics usually contain many different materials, and different materials have different rheological properties and melting points[7-8].
In this work, based on finite element simulation for extrusion situation of die-plate, the factors which have an important affect on die-hole blocking are studied.
For recycled plastics, materials with different rheological properties and melting points are usually mixed together, and can not be separated.
Finite element simulation is calculated to analyze the relationship between operation factors of pelleting process and blocking situation of die holes.
Because recycled plastics usually contain many different materials, and different materials have different rheological properties and melting points[7-8].
In this work, based on finite element simulation for extrusion situation of die-plate, the factors which have an important affect on die-hole blocking are studied.
For recycled plastics, materials with different rheological properties and melting points are usually mixed together, and can not be separated.
Online since: February 2014
Authors: Zheng Yong Cheng, Sheng Zhang, Wen Juan Gu, Bang Gui He, Ying Li
Compared with conventional friction, organ surfaces have different shapes, the elastic modulus and surface properties, so the investigator brought greater difficulties.
It connect with material science, the theory of friction, surface processing technology, the actual working condition and other factors.
Surface texture of the shape, size, distribution and density is considered to be one of the most important parameters affecting characteristics of friction pair.
Chinese Journal of Mechanical Engineering,2004, 40(11) 1-5
Chinese Journal of Mechanical Engineering, 2007, 43(10)
It connect with material science, the theory of friction, surface processing technology, the actual working condition and other factors.
Surface texture of the shape, size, distribution and density is considered to be one of the most important parameters affecting characteristics of friction pair.
Chinese Journal of Mechanical Engineering,2004, 40(11) 1-5
Chinese Journal of Mechanical Engineering, 2007, 43(10)
Online since: January 2010
Authors: Marco A. Deriu, Alberto Redaelli, Monica Soncini, Franco Maria Montevecchi, Tamara C. Bidone
These results strongly confirm the anisotropy of the MT mechanical properties.
Introduction Microtubules (MTs) are supra-molecular structures that in combination with actin and intermediate filaments make up the cell cytoskeleton and strongly affect the cell mechanical properties.
ENM-based NMA has been used also for investigations of mechanical properties of proteins [7, 8].
The mechanical properties of MTs with length ranging from 80 to 180 nm were obtained by combining data from MD and NMA.
Mechanical properties as obtained by the 1 st bending and 1 st stretching modes and mode for different MT lengths.
Introduction Microtubules (MTs) are supra-molecular structures that in combination with actin and intermediate filaments make up the cell cytoskeleton and strongly affect the cell mechanical properties.
ENM-based NMA has been used also for investigations of mechanical properties of proteins [7, 8].
The mechanical properties of MTs with length ranging from 80 to 180 nm were obtained by combining data from MD and NMA.
Mechanical properties as obtained by the 1 st bending and 1 st stretching modes and mode for different MT lengths.
Online since: March 2008
Authors: S. Sampath, Vladimir Luzin, A. Valarezo
Thermal and cold spraying encompasses a great variety of techniques for deposition of
fully or partially molten or cold particles of material to produce coatings with a specific
microstructure and properties for the purpose of surface enhancement.
Among the many factors influencing sprayed coating integrity, residual stress is very important since it will be the driving force for possible crack propagation and consequent coating failure.
Although they are all referred as spraying techniques, differences in the physical phenomena responsible for coating formation and particle bonding may result in consequent differences in microstructure, mechanical properties and stress patterns.
Temperature in the plasma jet, usually 7000 - 10000ºC, is a key factor here - the strength of mechanical or metallurgical-chemical adhesion of the molten particles depends strongly on the temperature and it results in residual stresses of differing magnitude.
Finally, there are techniques, such as high-velocity oxy-fuel (HVOF) or combustion spraying, where both mentioned factors are of equal importance.
Among the many factors influencing sprayed coating integrity, residual stress is very important since it will be the driving force for possible crack propagation and consequent coating failure.
Although they are all referred as spraying techniques, differences in the physical phenomena responsible for coating formation and particle bonding may result in consequent differences in microstructure, mechanical properties and stress patterns.
Temperature in the plasma jet, usually 7000 - 10000ºC, is a key factor here - the strength of mechanical or metallurgical-chemical adhesion of the molten particles depends strongly on the temperature and it results in residual stresses of differing magnitude.
Finally, there are techniques, such as high-velocity oxy-fuel (HVOF) or combustion spraying, where both mentioned factors are of equal importance.
Online since: February 2012
Authors: Shou Jin Zeng, Zhi Feng Liu, Ji Bin Jiang
From Figure1we know that the evaluation of remanufacturability is a comprehensive evaluation with several hierarchies and many factors.
The connection index is used to evaluate the properties of disassembly and assembly.
The quality assurance index is used to evaluate the properties of detection and test.
The damage repair index is used to evaluate the properties of replacement and repair.
The cleaning index is used to evaluate the cleaning properties.
The connection index is used to evaluate the properties of disassembly and assembly.
The quality assurance index is used to evaluate the properties of detection and test.
The damage repair index is used to evaluate the properties of replacement and repair.
The cleaning index is used to evaluate the cleaning properties.
Online since: March 2012
Authors: W.I. Choi, W.Y. Jang, K.H. Kim, K.K. Jee
However, both recovery properties decrease after the 103 or 104 cycles, while the decreasing tendency becomes larger with a rise in aging temperature.
Typically, tension/compression coil springs for shape memory alloy(SMA) actuator are made from cold-drawn wire with an appropriate wire diameter, to which memory properties are given through heat treatment to adjust their transformation characteristics.
Therefore, recovery temperature, recovery force and recovery displacement of SMA actuators, which are important factors to be considered in SMA actuator design, are affected by cold drawing, heat treatment conditions and their chemical composition[2,3].
Recovery Properties with Thermal Cycling.
However, both recovery properties decrease after the 103 or 104 cycles, while the decreasing tendency of theirs becomes larger with a rise in aging temperature.
Typically, tension/compression coil springs for shape memory alloy(SMA) actuator are made from cold-drawn wire with an appropriate wire diameter, to which memory properties are given through heat treatment to adjust their transformation characteristics.
Therefore, recovery temperature, recovery force and recovery displacement of SMA actuators, which are important factors to be considered in SMA actuator design, are affected by cold drawing, heat treatment conditions and their chemical composition[2,3].
Recovery Properties with Thermal Cycling.
However, both recovery properties decrease after the 103 or 104 cycles, while the decreasing tendency of theirs becomes larger with a rise in aging temperature.
Online since: January 2019
Authors: BEHZAD NIROUMAND, Farshid Marani
The average diameter and shape factor of the primary particles in the semisolid cast Zamak 3 alloy was measured to be about 16 μm and 0.8, respectively.
Many parameters, including the material of the serpentine channel [17], the channel diameter and number of bends [18] and the cooling conditions [19] affect the microstructure and mechanical properties of the samples produced by this method.
Hardness of semisolid sample is affected by the hardness of both non-dendritic primary solid particles and the secondary dendritic grains.
Liu, Influence of rheo-diecasting processing parameters on microstructure and mechanical properties hypereutectic Al-30%Si alloy, Transactions of Nonferrous Metals Society of China, 27 (2017) 1264-1272
Marani, Semisolid casting of Zamak 3 alloy using modified serpentine channel and characterization of its microstructural and mechanical properties, MSc thesis, Isfahan University of Technology, 2018
Many parameters, including the material of the serpentine channel [17], the channel diameter and number of bends [18] and the cooling conditions [19] affect the microstructure and mechanical properties of the samples produced by this method.
Hardness of semisolid sample is affected by the hardness of both non-dendritic primary solid particles and the secondary dendritic grains.
Liu, Influence of rheo-diecasting processing parameters on microstructure and mechanical properties hypereutectic Al-30%Si alloy, Transactions of Nonferrous Metals Society of China, 27 (2017) 1264-1272
Marani, Semisolid casting of Zamak 3 alloy using modified serpentine channel and characterization of its microstructural and mechanical properties, MSc thesis, Isfahan University of Technology, 2018
Online since: March 2010
Authors: Ming Zhou, Peng Jia, Min Li
Research on the Influence of Cutting Fluids on the Critical
Depth of Cut in Diamond Cutting of Optical Glass BK7
Ming Zhou1,a
, Peng Jia
1,b
and Min Li
1
School of Mechanical and Electrical Engineering, Harbin Institute of Technology, Harbin, P.R. of
China, 150001
a
Zhouming@hit.edu.cn, bhunter@hit.edu.cn
Keywords: Diamond cutting, Optical glass, Critical depth of cut, Cutting fluid
Abstract.
In diamond cutting of optical glasses, the magnitude of critical depth of cut for brittle-ductile transition is an important factor affecting the machinability of the work material in terms of production rate and surface quality.
In this work, scratching tests with increasing depths of cut were conducted on glass BK7 to evaluate the influence of the cutting fluid properties on the critical depth of cut.
The objective of this research is to evaluate the influence of the cutting fluid properties on the critical depth of cut.
In diamond cutting of optical glasses, the magnitude of critical depth of cut for brittle-ductile transition is an important factor affecting the machinability of the work material in terms of production rate and surface quality.
In this work, scratching tests with increasing depths of cut were conducted on glass BK7 to evaluate the influence of the cutting fluid properties on the critical depth of cut.
The objective of this research is to evaluate the influence of the cutting fluid properties on the critical depth of cut.
Online since: April 2018
Authors: Asiya Duryagina, Irina Talovina, Anastasia Shtyrlyaeva, Oleg Popov
The influence of the rock properties on the processing characteristics is a well-established fact [1].
X-Ray Computer Tomography CT is an effective supplement in the complex studies of technological properties of rocks.
It determines the interpretation of the strength properties and behavior of the rock during desintegration [6].
Based on a large amount of data with using of mathematical-statistical modeling (correlation, factor analysis, etc.) it’s possible to predict the relationship between the morphometric rock parameters and properties of the crushing product or system characteristics, such as wear or energy consumption.
Kameneva, Study of physical and mechanical properties of building rock affecting their quality dezintegration and final commercial products, Plaksinskie chtenija, (2013) 7-12
X-Ray Computer Tomography CT is an effective supplement in the complex studies of technological properties of rocks.
It determines the interpretation of the strength properties and behavior of the rock during desintegration [6].
Based on a large amount of data with using of mathematical-statistical modeling (correlation, factor analysis, etc.) it’s possible to predict the relationship between the morphometric rock parameters and properties of the crushing product or system characteristics, such as wear or energy consumption.
Kameneva, Study of physical and mechanical properties of building rock affecting their quality dezintegration and final commercial products, Plaksinskie chtenija, (2013) 7-12