Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: March 2014
Authors: Andrés L. García Fuentes, Alberto Velásquez del Rosario
The research focused on characterizing the mechanical properties of the weld; examine the influence of the factors that affect the quality of welding on the mechanical behavior of the joint and to evaluate the influence of the type of load applied the mechanical behavior of the union.
Table 3.Tensile mechanical properties of the samples (obtained in the laboratory) [1, 2].
Properties Sy Su Elong.
The specimens welded as overlap, suffering deformation around the ductile fracture in, away from HAZ without affecting the weld, as evidenced in Fig. 10 b.
Mechanical fatigue properties of the samples under study [1, 2].
Table 3.Tensile mechanical properties of the samples (obtained in the laboratory) [1, 2].
Properties Sy Su Elong.
The specimens welded as overlap, suffering deformation around the ductile fracture in, away from HAZ without affecting the weld, as evidenced in Fig. 10 b.
Mechanical fatigue properties of the samples under study [1, 2].
Online since: March 2014
Authors: Nasser Towhidi, Saeed Reza Allahkaram, Amir Hekmat, Reza Faezi Alivand
In metallurgical engineering, there are different criteria affected on coating on surface of the material such as physical, chemical, mechanical, electrical and economical properties.
The main reason ofcoating is the unique and smooth properties of Ni electroless deposited surface.
If the comparisons are not perfectly consistent, then it provides a mechanism for improving consistency[7-9].This model allows evaluating the effecting factors in the quality of coating.
Metallurgical properties of the coatings are giveninTable1.To select the most appropriate option from the properties of electroless coating AHP technique was used.
Alternatives are different concentrations of alumina and criteria are metallurgical properties.
The main reason ofcoating is the unique and smooth properties of Ni electroless deposited surface.
If the comparisons are not perfectly consistent, then it provides a mechanism for improving consistency[7-9].This model allows evaluating the effecting factors in the quality of coating.
Metallurgical properties of the coatings are giveninTable1.To select the most appropriate option from the properties of electroless coating AHP technique was used.
Alternatives are different concentrations of alumina and criteria are metallurgical properties.
Online since: January 2016
Authors: Kai Liao, Yi Peng Liu, Fei Chen
The deformation in machining process, which directly influences the mechanical property, behavior integrity, fatigue life and so on, is the key problem in current studies[6].
The deformation is influenced by the factors of initial stress state, machining process, and form of component[7-9].
Based on the milling simulation, the influence factors such as milling path, clamping position and milling speed are analyzed to propose machining strategies to reduce deformation.
3) how to control factors led to distortion.
The bending is caused by two factors: initial residual stress and machining stress.
The deformation is influenced by the factors of initial stress state, machining process, and form of component[7-9].
Based on the milling simulation, the influence factors such as milling path, clamping position and milling speed are analyzed to propose machining strategies to reduce deformation.
3) how to control factors led to distortion.
The bending is caused by two factors: initial residual stress and machining stress.
Online since: June 2011
Authors: Y. Li, Yong Xiang Zhao, Bing Yang
Scale and Surface Machining Quality Effect on Fatigue Properties for China Railway Grade B Cast Steel Wheel
Y.X.
Random effects on fatigue lives and effect factors are constructed for measuring effects.
And it is a basic work to assess the scale and surface machining effect on the fatigue properties of the wheels.
Major flaw affecting randomly material condense of the wheel is from the casting shrinkage porosities.
Random affected sectional area related fatigue lives and the effect factors are constructed for measuring effects.
Random effects on fatigue lives and effect factors are constructed for measuring effects.
And it is a basic work to assess the scale and surface machining effect on the fatigue properties of the wheels.
Major flaw affecting randomly material condense of the wheel is from the casting shrinkage porosities.
Random affected sectional area related fatigue lives and the effect factors are constructed for measuring effects.
Online since: August 2009
Authors: Jian Ping Lin, Shui Sheng Chen, Dong Feng Han
Investigation on Twist of Asymmetric Flanging of Wheel Cowling Tail of
Fender and Its Influencing Factors
J.P.
Material Properties.
The Influence of Processing Factors on the Distortion.
So the ratios of various factors, which affect the twist angle (θ), are focused instead of themselves when the investigation on θ is conducted.
Conclusions An asymmetry flanging model is built and twist of wheel cowling tail of the fender along with the influencing factors are investigated by mechanical analysis methods and FEM.
Material Properties.
The Influence of Processing Factors on the Distortion.
So the ratios of various factors, which affect the twist angle (θ), are focused instead of themselves when the investigation on θ is conducted.
Conclusions An asymmetry flanging model is built and twist of wheel cowling tail of the fender along with the influencing factors are investigated by mechanical analysis methods and FEM.
Online since: November 2005
Authors: Taiju Shibata, Nobumasa Tsuji, Tatsuo Iyoku, Junya Sumita, Masahiro Ishihara
A two-dimensional C/C
composite has great anisotropy in those properties in with- and across- fiber directions.
Table 1 shows typical material properties 2D-C/C composite of CX-270G grade (TOYO TANSO Co.), comparing with IG-110 graphite, fine-grained and isostatic-pressed isotropic graphite used in the HTTR core [5].
Although the 2D-C/C composite has high strength, it also has great anisotropy in thermo- mechanical properties in with- and across- fiber directions, as well-known.
The anisotropy of the thermal and mechanical properties was selected as a parameter.
The VIENUS code is in modification so as to treat the anisotropy of material properties of the 2D-C/C composite under neutron irradiation condition.
Table 1 shows typical material properties 2D-C/C composite of CX-270G grade (TOYO TANSO Co.), comparing with IG-110 graphite, fine-grained and isostatic-pressed isotropic graphite used in the HTTR core [5].
Although the 2D-C/C composite has high strength, it also has great anisotropy in thermo- mechanical properties in with- and across- fiber directions, as well-known.
The anisotropy of the thermal and mechanical properties was selected as a parameter.
The VIENUS code is in modification so as to treat the anisotropy of material properties of the 2D-C/C composite under neutron irradiation condition.
Online since: October 2006
Authors: Majid R. Ayatollahi, R. Hashemi
These studies showed that mechanical properties of composite laminate have a
significant influence on the performance of composite reinforcement method.
These changes usually degrade the mechanical properties of the laminate with time.
KI and KII are the mode I and mode II stress intensity factors (SIF) respectively.
Both rc and cθθσ are assumed to be material properties.
The mechanical properties used for aluminum alloy, epoxy adhesive and composite patch in ambient air conditions are listed in Table 1.
These changes usually degrade the mechanical properties of the laminate with time.
KI and KII are the mode I and mode II stress intensity factors (SIF) respectively.
Both rc and cθθσ are assumed to be material properties.
The mechanical properties used for aluminum alloy, epoxy adhesive and composite patch in ambient air conditions are listed in Table 1.
Online since: January 2019
Authors: Kirill Kuvshinov, Maxim Vedyashkin, Olga Surzhikova, Boris Moyzes, Alexey Gavrilin
This factor can significantly affect the performance of both the tool and the bearing units of milling machines, as well as the processing quality of the workpiece.
It should be noted that it is important to have a set of high level band-pass filters to identify the vibrations levels arising at the tooth frequencies and multiples thereof frequencies which characterize the defects, cutter wear process, affecting durability and processing quality of the equipment.
The choice of this material is based on its widespread application due to good machinability and good mechanical properties.
For vibrodiagnostics of the milling machine, it was decided to carry out an experiment with three varying factors (cutting width ae=const): rotational velocity n; cutting depth ap; feed s (Table 2).
Lockhart, Mechanical Engineering Reference Manual, NY Research Press, New York, 2015
It should be noted that it is important to have a set of high level band-pass filters to identify the vibrations levels arising at the tooth frequencies and multiples thereof frequencies which characterize the defects, cutter wear process, affecting durability and processing quality of the equipment.
The choice of this material is based on its widespread application due to good machinability and good mechanical properties.
For vibrodiagnostics of the milling machine, it was decided to carry out an experiment with three varying factors (cutting width ae=const): rotational velocity n; cutting depth ap; feed s (Table 2).
Lockhart, Mechanical Engineering Reference Manual, NY Research Press, New York, 2015
Online since: June 2014
Authors: S. Valtierra, J.H. Sandoval, Adel M.A. Mohamed, F.H. Samuel
While the properties in the as-cast condition are acceptable for certain applications, the alloys are typically heat-treated for optimal properties [1,2].
Table 2 Tensile properties of modified and grain-refined A354 alloy.
As can be observed from Figures 2 to 4, 20 values represent the maximum and minimum mechanical properties out of the whole set of obtained results.
The established tensile properties at various conditions characterize the mechanical behavior of the A354 alloy.
Caceres, “Economical and environmental factors in light alloys automotive applications,” Metallurgical and Materials Transactions A, 38A(2007) 1649-1662
Table 2 Tensile properties of modified and grain-refined A354 alloy.
As can be observed from Figures 2 to 4, 20 values represent the maximum and minimum mechanical properties out of the whole set of obtained results.
The established tensile properties at various conditions characterize the mechanical behavior of the A354 alloy.
Caceres, “Economical and environmental factors in light alloys automotive applications,” Metallurgical and Materials Transactions A, 38A(2007) 1649-1662
Online since: March 2016
Authors: Ming Yang Li, Ran Wei, Hui Yun Wu, Qing Quan Zhang, Zhen Rui Li, Zu Ming Fu, Yu Cao
It is indicated that the content of sulfur has great effect on the mechanical properties of GH625.
There are many factors which influence the thermal processing quality, the content of S element in the alloy which is the main influencing factor.
The effects of sulfur on the properties of GH625 alloy have not been investigated previously yet.
As the S increases the material is brittle fracture under low temperature, and with the increase of temperature, the low melting point of sulfide seriously affect the thermal processing properties of materials.
[6] BAO Xingcai.The Effects of Nb on Microstructure And Mechanical Properties of The ZM6 Alloy[D].Harbin: Harbin aviation industry group,2007
There are many factors which influence the thermal processing quality, the content of S element in the alloy which is the main influencing factor.
The effects of sulfur on the properties of GH625 alloy have not been investigated previously yet.
As the S increases the material is brittle fracture under low temperature, and with the increase of temperature, the low melting point of sulfide seriously affect the thermal processing properties of materials.
[6] BAO Xingcai.The Effects of Nb on Microstructure And Mechanical Properties of The ZM6 Alloy[D].Harbin: Harbin aviation industry group,2007