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Online since: June 2010
Authors: Zhe Zheng Chen, Yong Hua Chen
This paper will look into the factors affecting build directions of mechanisms.
Apart from factors affecting mechanism build directions, guidelines for mechanism joint design are also discussed.
In this way, parts fabricated in different directions may have different properties including mechanical properties, surface quality, etc.
Mechanical Properties.
Parts from layered machining have anisotropic mechanical properties.
Apart from factors affecting mechanism build directions, guidelines for mechanism joint design are also discussed.
In this way, parts fabricated in different directions may have different properties including mechanical properties, surface quality, etc.
Mechanical Properties.
Parts from layered machining have anisotropic mechanical properties.
Online since: November 2020
Authors: Nuchnapa Tangboriboon, Samit Niyasom
Embedding Bio-Filler Materials to Enhance Physical-Mechanical-Thermal Properties of Concrete
Nuchnapa Tangboriboon1,a* and Samit Niyasom2,b
1,2Materials Engineering Department, Faculty of Engineering Kasetsart University, Chatujak, Bangkok, 10900, Thailand
a*fengnnpt@ku.ac.th and bsamit.n@ku.th
Keywords: Water hyacinth fiber; Concrete; Mechanical properties; Bio-filler; Banana fiber; Eggshell
Abstract.
Adding water hyacinth fiber, banana fiber and eggshell powder can increase physical-mechanical-thermal properties of concrete.
Concrete with/without adding 0, 0.02 and 0.05 wt% bio-filler via hydration reaction affects to good physical-mechanical-thermal properties.
Adding small amount (0.02-0.05 wt%) of bio-filler is one kind to increase physical, mechanical and thermal properties of concrete products.
There are many factors of bio-filler effect to enhance physical-mechanical-thermal properties such as composition, size and shape, quantity, durability and density.
Adding water hyacinth fiber, banana fiber and eggshell powder can increase physical-mechanical-thermal properties of concrete.
Concrete with/without adding 0, 0.02 and 0.05 wt% bio-filler via hydration reaction affects to good physical-mechanical-thermal properties.
Adding small amount (0.02-0.05 wt%) of bio-filler is one kind to increase physical, mechanical and thermal properties of concrete products.
There are many factors of bio-filler effect to enhance physical-mechanical-thermal properties such as composition, size and shape, quantity, durability and density.
Online since: July 2011
Authors: Hui Huang, Ming Li, Zhen De Cui, Jin Zhang
This paper describes the structural characteristics, manufacturing processes and quality problems of hand-pushing tapping knife for natural rubber tree milk and suggests several measures to improve its mechanical properties effectively by analyzing relevant factors that affect hand-pushing tapping knife’s mechanical properties.
Knife blade Fig. 1 Hand-pushing tapping knife’s structural diagram Analysis of factors that affect hand-pushing tapping knife’s mechanical properties The main factors that affect hand-pushing tapping knife’s mechanical properties include raw material quality and heat-treatment process, etc.
Several measures to improve hand-pushing tapping knife’s mechanical properties Strengthen quality inspection of incoming raw materials.
If quenching temperature is too low, knife’s mechanical properties, especially its wear-resistance, will be reduced even its hardness can meet requirements.
Perform a good mechanical property analysis.
Knife blade Fig. 1 Hand-pushing tapping knife’s structural diagram Analysis of factors that affect hand-pushing tapping knife’s mechanical properties The main factors that affect hand-pushing tapping knife’s mechanical properties include raw material quality and heat-treatment process, etc.
Several measures to improve hand-pushing tapping knife’s mechanical properties Strengthen quality inspection of incoming raw materials.
If quenching temperature is too low, knife’s mechanical properties, especially its wear-resistance, will be reduced even its hardness can meet requirements.
Perform a good mechanical property analysis.
Online since: August 2023
Authors: Rossen Radev, Danail Gospodinov, Mariana Ilieva, Nikolay Ferdinandov
The stirring and mixing of the material and the temperature during friction stir welding are the main factors that determine the possibility of obtaining weldments with precise mechanical properties.
All these factors led to unsuitable welding temperatures.
Therefore, lower mechanical properties were found for all weldments made with P1.
Of all used pins, P4 led to the highest values of the mechanical properties.
The increase in welding rate led to an increase in this ratio for both mechanical properties.
All these factors led to unsuitable welding temperatures.
Therefore, lower mechanical properties were found for all weldments made with P1.
Of all used pins, P4 led to the highest values of the mechanical properties.
The increase in welding rate led to an increase in this ratio for both mechanical properties.
Online since: January 2020
Authors: Natalya Gabelchenko, Artem Belov, Alena Savchenko
Nevertheless, it is obvious that individual crystallization conditions in each local interval affect the mechanical properties of the castings.
Information on the mechanical properties of 35L medium-carbon steel in different diameter samples is given in Table 1.
Grain size change in castings of different diameter (а) Ø 16 mm, (b) Ø 40 mm, (c) Ø 60 mm; (d) Ø 80 mm It is possible to graphically represent the primary structure of the influence on the mechanical properties of the steel, (Fig. 3), having in mind that the secondary structure in the annealed steel samples completely identical and, therefore, does not affect the properties.
Zaymovsky, Structure and mechanical properties of metals, Moscow, Metallurgy, 1970
Il'Inskii, Factors affecting the dispersity of the dendritic structures in steels.
Information on the mechanical properties of 35L medium-carbon steel in different diameter samples is given in Table 1.
Grain size change in castings of different diameter (а) Ø 16 mm, (b) Ø 40 mm, (c) Ø 60 mm; (d) Ø 80 mm It is possible to graphically represent the primary structure of the influence on the mechanical properties of the steel, (Fig. 3), having in mind that the secondary structure in the annealed steel samples completely identical and, therefore, does not affect the properties.
Zaymovsky, Structure and mechanical properties of metals, Moscow, Metallurgy, 1970
Il'Inskii, Factors affecting the dispersity of the dendritic structures in steels.
Online since: November 2016
Authors: Juho Kwak, Han Sang Kwon, Chang Yong Kang, Kwon Hoo Kim
Factors affected on damping capacity are grain size, crystal orientation, dislocation motion, and so on.
It was found that damping capacity has been affected by grain size and crystal orientation.
However, if magnesium is alloyed in order to improve its mechanical properties, damping capacity of magnesium is significantly reduced [1].
Also, damping properties of metals are normally influenced by microstructural factors such as grain size and texture and so on.
And then, contributed factors on damping capacity were confirmed by analysing microstructures, hardness and damping capacity, according to dislocation string model and Granato-Lucke equations.
It was found that damping capacity has been affected by grain size and crystal orientation.
However, if magnesium is alloyed in order to improve its mechanical properties, damping capacity of magnesium is significantly reduced [1].
Also, damping properties of metals are normally influenced by microstructural factors such as grain size and texture and so on.
And then, contributed factors on damping capacity were confirmed by analysing microstructures, hardness and damping capacity, according to dislocation string model and Granato-Lucke equations.
Online since: July 2013
Authors: Prachya Peasura, Nansa Arng Santirat
The research was study the effect of post weld aging parameter on mechanical properties.
Factors affecting the optimum were solution temperature 1050 oC, PWA temperature 850 oC and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN.
The aim of the research has been to study effect post weld aging related mechanical properties of duplex stainless steels.
Factors affecting the optimum were solution temperature 1050 oC, PWA temperature 850 oC and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN.
-O., Kangas P., Karlsson T., Wilson A., Microstructural stability and mechanical properties of a high nitrogen super duplex stainless steel, Mater.
Factors affecting the optimum were solution temperature 1050 oC, PWA temperature 850 oC and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN.
The aim of the research has been to study effect post weld aging related mechanical properties of duplex stainless steels.
Factors affecting the optimum were solution temperature 1050 oC, PWA temperature 850 oC and PWA time 4 hr. at hardness optimum of 282.36 HV and tensile strength optimum of 109.37 kN.
-O., Kangas P., Karlsson T., Wilson A., Microstructural stability and mechanical properties of a high nitrogen super duplex stainless steel, Mater.
Online since: August 2011
Authors: Liang Gao, Mi Xiao, Lei Yang, Zhi Hui Yao
Line heating is a complex thermal-mechanical process as many factors affect the final shape of a processed plate.
Temperature-dependent mild steel physical properties, including density, thermal conductivity and specific heat, are set according to Fig. 1.
Fig. 1 Temperature-dependent physical properties Fig. 2 Finite element model The geometric model is meshed.
Fig. 3 Fishbone diagram of influencing factors in line heating process Specification of Factors.
Line heating is a complex thermal-mechanical process as many factors affect the temperature field.
Temperature-dependent mild steel physical properties, including density, thermal conductivity and specific heat, are set according to Fig. 1.
Fig. 1 Temperature-dependent physical properties Fig. 2 Finite element model The geometric model is meshed.
Fig. 3 Fishbone diagram of influencing factors in line heating process Specification of Factors.
Line heating is a complex thermal-mechanical process as many factors affect the temperature field.
Online since: July 2016
Authors: Eva Schmidová, Petr Hanus
The Possibilities of Evaluating the Yield Strength in The Heat Affected Zones of a Weld Through Indentation
HANUS Petr 1,a *, SCHMIDOVÁ Eva 1,b
1Jan Perner Transport Faculty, University of Pardubice, Pardubice, Studentská 95, Czech Republic
apetr.hanus@upce.cz, beva.schmidova@upce.cz,
Keywords: Mechanical properties, indentation method, microstructures, hardness, tensile test.
These zones represent critical areas of welded constructions because of a changing structure and different mechanical properties than the basic material possesses.
The indentation data were recalculated to the mechanical properties in shear with the help of Hencky´s hypotheses about material behaviour.
A very important problem comes in the case of micro-alloyed steels, which get their specific attributes thanks to the above mentioned factors [5].
DOMEX 700MC has obtained its mechanical properties by a quenching process.
These zones represent critical areas of welded constructions because of a changing structure and different mechanical properties than the basic material possesses.
The indentation data were recalculated to the mechanical properties in shear with the help of Hencky´s hypotheses about material behaviour.
A very important problem comes in the case of micro-alloyed steels, which get their specific attributes thanks to the above mentioned factors [5].
DOMEX 700MC has obtained its mechanical properties by a quenching process.
Online since: March 2012
Authors: Fan Xiu Lu, Guang Chao Chen, Wei Zhong Tang, Cheng Ming Li, Li Fu Hei, Jian Hua Song
However, up to now, no systematic data have ever been published in concerning the mechanical properties.
Thus the strange behavior of the CVD diamond films that the grain size seems to be the only factor affecting the fracture strength is explained.
Technical route that may lead to the improvement in mechanical properties Apparently any technical measure which will reduce the size and amount of the defects (cracks) will certainly improve the mechanical properties of the CVD diamond films.
Besides the effect on grain size (which is related to the thickness), fracture strength is insensitive to any other factors.
Field: Properties of natural and synthetic diamond, edtied by J.E.
Thus the strange behavior of the CVD diamond films that the grain size seems to be the only factor affecting the fracture strength is explained.
Technical route that may lead to the improvement in mechanical properties Apparently any technical measure which will reduce the size and amount of the defects (cracks) will certainly improve the mechanical properties of the CVD diamond films.
Besides the effect on grain size (which is related to the thickness), fracture strength is insensitive to any other factors.
Field: Properties of natural and synthetic diamond, edtied by J.E.