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Online since: February 2012
Authors: Li Min Wen, Xian Cai Wang, Yi Min Wang
Blanking clearance is one of the key factors affecting the quality of fine blanking.
Such can highlight theme, and it doesn't affect the results.
Material property parameters were shown in Table 2 Table1 45 steel components material composition C Si Mn P S mass percent % 0.48 0.31 0.62 0.01 0.02 Table2 The main performance parameters of material material tensile strength/Mpa Yield limit/Mpa Elongation % C45 650 350 38 FEM numerical simulation has been adopted to simulate the blanking process under the different relative clearance and comparing hydrostatic stress field distribution.
To improve the quality of punching, other factors must be considered, not only by reducing the relative clearance.
[4] Yihong Huang: The Chinese mechanical engineering. (1994) p. 5.
Such can highlight theme, and it doesn't affect the results.
Material property parameters were shown in Table 2 Table1 45 steel components material composition C Si Mn P S mass percent % 0.48 0.31 0.62 0.01 0.02 Table2 The main performance parameters of material material tensile strength/Mpa Yield limit/Mpa Elongation % C45 650 350 38 FEM numerical simulation has been adopted to simulate the blanking process under the different relative clearance and comparing hydrostatic stress field distribution.
To improve the quality of punching, other factors must be considered, not only by reducing the relative clearance.
[4] Yihong Huang: The Chinese mechanical engineering. (1994) p. 5.
Online since: October 2018
Authors: Rong Cao, Qing Lin Jin
The porosity of the ordered porous copper is significantly affected by the pressure of hydrogen.
The ordered porous materials possess unique properties such as exceptionally low weight, special acoustic characteristics, and high damping capacity for absorption of mechanical energy[4-8].
Due to these unusual properties, ordered porous materials have potential applications in many fields like medicine, space technology, automotive and military industries etc.[3, 4].
Further detailed investigations on the influence of these factors remain for future work.
Nakajima, Fabrication, properties and application of porous metals with directional pores, Prog.
The ordered porous materials possess unique properties such as exceptionally low weight, special acoustic characteristics, and high damping capacity for absorption of mechanical energy[4-8].
Due to these unusual properties, ordered porous materials have potential applications in many fields like medicine, space technology, automotive and military industries etc.[3, 4].
Further detailed investigations on the influence of these factors remain for future work.
Nakajima, Fabrication, properties and application of porous metals with directional pores, Prog.
Online since: May 2011
Authors: Te Wei Fan
Factors that affect the brittle fracture strength of connections include: weld defect, residual stress, HAZ, welding parameter.
It needs to incorporate temperature-dependent material properties as shown in table 1.
The material properties are listed in table 1 where yield strength is 350 MPa and elastic modulus is 200 GPa in room temperature.
Due to the mechanical and thermal properties of weld are slightly different from base metal, the same material properties of base metal are used for both.
Stress intensity factors of different crack depth and hold time Fig. 7.
It needs to incorporate temperature-dependent material properties as shown in table 1.
The material properties are listed in table 1 where yield strength is 350 MPa and elastic modulus is 200 GPa in room temperature.
Due to the mechanical and thermal properties of weld are slightly different from base metal, the same material properties of base metal are used for both.
Stress intensity factors of different crack depth and hold time Fig. 7.
Online since: December 2011
Authors: Ming Tang, Li Jun Pang
Because the particular properties of mechanical, physical and chemical, making integrated milling performance of TC4 to reduce and having a disadvantage effect on good surface integrity with parts [3].
Orthogonal test design The four factor for the dry milling of orthogonal test are axial depth of cut which is expressed as ap(mm), feed per tooth which is expressed as fz(mm/z), milling speed which is expressed as vc (m/min) and radial depth of cut which is expressed as ae(mm).
In order to increase the amount of information of test points, consider the interaction among various factors in the actual processing and reduce workload of the experiment, adopt the orthogonal table L9(34) with four factor and three level to conduct this test [5].
(3) The heat treatment crafts of milling performance toward TC4 titanium alloy are greatly affected.
Application Tutorial of Mechanical Engineering Material, M.
Orthogonal test design The four factor for the dry milling of orthogonal test are axial depth of cut which is expressed as ap(mm), feed per tooth which is expressed as fz(mm/z), milling speed which is expressed as vc (m/min) and radial depth of cut which is expressed as ae(mm).
In order to increase the amount of information of test points, consider the interaction among various factors in the actual processing and reduce workload of the experiment, adopt the orthogonal table L9(34) with four factor and three level to conduct this test [5].
(3) The heat treatment crafts of milling performance toward TC4 titanium alloy are greatly affected.
Application Tutorial of Mechanical Engineering Material, M.
Online since: March 2015
Authors: Sit Zaharah Ishak, Wan Adilah Ismail, Intan Rohani Endut
Then, the aims of this study are to determine suitability of material selected by examining the aggregate properties and modified asphalt binder.
Increasing number of vehicles volumes simultaneously will increases the number of repetitious axle pressure and load are major factors of pavement failure [2].
Polyacrylate is complex molecules of long chained hydrocarbons and it has both stiffness and elastic properties.
Table 4, Summaries of sample height for control samples Binder Content (%) Average height, (mm) Ninitial (8 Gyrations) Average height, (mm) Ndesign (100 Gyrations) Average height, (mm) Ninitial (8 Gyrations) Average height, (mm) Ndesign (100 Gyrations) Control Samples Polyacrylate Samples 5 80.19 71.81 79.94 70.75 5.5 79.51 71.34 78.94 70.55 6.0 79.87 71.16 79.84 71.26 6.5 79.63 71.91 79.06 70.96 Conclusion Aggregate properties are primary factors in pavement performances that affect bonding between binders.
Angelo, “Superpave And Aggregate Properties:From And Where Are They Going?”.
Increasing number of vehicles volumes simultaneously will increases the number of repetitious axle pressure and load are major factors of pavement failure [2].
Polyacrylate is complex molecules of long chained hydrocarbons and it has both stiffness and elastic properties.
Table 4, Summaries of sample height for control samples Binder Content (%) Average height, (mm) Ninitial (8 Gyrations) Average height, (mm) Ndesign (100 Gyrations) Average height, (mm) Ninitial (8 Gyrations) Average height, (mm) Ndesign (100 Gyrations) Control Samples Polyacrylate Samples 5 80.19 71.81 79.94 70.75 5.5 79.51 71.34 78.94 70.55 6.0 79.87 71.16 79.84 71.26 6.5 79.63 71.91 79.06 70.96 Conclusion Aggregate properties are primary factors in pavement performances that affect bonding between binders.
Angelo, “Superpave And Aggregate Properties:From And Where Are They Going?”.
Online since: June 2014
Authors: Y.A. El-Shekeil, M. Haron, S.M. Sapuan
Properties of TPU
Hardness
Tensile Strength
Specific Gravity
Melting Temperature
55D
48 MPa*
1.21
210 °C
Method
Preparation of Composite.
Tensile properties were measured using Instron 3365 machine, according to ASTM D 638.
The combination parameters for the effective factors Trail no.
The average effect factors are shown in Table 6.
Among these factors ANOVA analysis calculations showed that fiber content was the most significant parameter affecting the production of TPU/CPH.
Tensile properties were measured using Instron 3365 machine, according to ASTM D 638.
The combination parameters for the effective factors Trail no.
The average effect factors are shown in Table 6.
Among these factors ANOVA analysis calculations showed that fiber content was the most significant parameter affecting the production of TPU/CPH.
Online since: June 2013
Authors: Y.G. Shi, Hao Zhang
Static Characteristics Research of Bed with Three-Point Support Using Bionics
Hao Zhang1, a, Yiguang Shi 2, b
1School of Mechanical Engineering, Tianjin University, Tianjin, China, 300072
2School of Mechanical Engineering, Tianjin University, Tianjin, China, 300072
azhanghao_ya@163.com, bsyg17@163.com
Keywords: three-point support, unit structure, bionics, static characteristics, FEM
Abstract.
The layout of the inter ribs of the bed is an important factor affecting its deformation.
Therefore, it is necessary to make further research of its statics property under gravity.
According to Saint-Venant principle, parts of the local features are simplified without affecting the results, and it is imported into the finite element software to analyze.
Dynamic and static performance optimization design of the mechanical structure based on the finite element analysis.
The layout of the inter ribs of the bed is an important factor affecting its deformation.
Therefore, it is necessary to make further research of its statics property under gravity.
According to Saint-Venant principle, parts of the local features are simplified without affecting the results, and it is imported into the finite element software to analyze.
Dynamic and static performance optimization design of the mechanical structure based on the finite element analysis.
Influence of Different Grinding Processes on Surface and Subsurface Characteristics of Carbide Tools
Online since: February 2004
Authors: C. Spengler, Berend Denkena
Different grinding operations are used with high demands
towards homogenous properties of ground surfaces.
Manufacturing Process of WC-tools The quality of the coated tool is influenced by a multiplicity of factors.
Residual stress measurements and SEM-pictures are used to characterize surface properties.
The workpiece properties are influenced by both kinds of loads -mechanical and thermal - during the grinding process.
In particular, the interface strength of PVDcoatings depends on the surface properties of the substrate.
Manufacturing Process of WC-tools The quality of the coated tool is influenced by a multiplicity of factors.
Residual stress measurements and SEM-pictures are used to characterize surface properties.
The workpiece properties are influenced by both kinds of loads -mechanical and thermal - during the grinding process.
In particular, the interface strength of PVDcoatings depends on the surface properties of the substrate.
Online since: March 2024
Authors: Peter Apata Olubambi, Chandramohan Palanisamy, Raghu Raman
Extensive research is being conducted all over the world in order to comprehend microstructural and textural changes occur during such interventions and how they affect the material properties [20-23].
Presence of MC carbides in grain boundaries has impact on mechanical and tribological properties of an alloy.
Wei, Microstructural evolution and mechanical properties of hot isostatic pressure bonded CM 247 LC superalloy cast, Mater.
Zhou, CNT-reinforced AlSi10Mg composite by selective laser melting: microstructural and mechanical properties, Mater.
Shklover, Texture anisotropy in microstructure and mechanical properties of IN738LC alloy processed by selective laser melting (SLM), Mater.
Presence of MC carbides in grain boundaries has impact on mechanical and tribological properties of an alloy.
Wei, Microstructural evolution and mechanical properties of hot isostatic pressure bonded CM 247 LC superalloy cast, Mater.
Zhou, CNT-reinforced AlSi10Mg composite by selective laser melting: microstructural and mechanical properties, Mater.
Shklover, Texture anisotropy in microstructure and mechanical properties of IN738LC alloy processed by selective laser melting (SLM), Mater.
Online since: August 2022
Authors: R. Sivanand, R. Raffik, Hassan Abbas Alshamsi, Anmol Sharma, Vasu Gajendiran, Kumud Pant
CNTs, especially MWCNTs and SWCNTs, can be used to improve the tribological properties of coatings by including their lubricating properties into the formulations.
It includes increase in elastic and hardness modulus (by 60 to 70 percent), as well as wear-induced micro-structural alterations affecting contact of SWCNTs, might be attributed to the higher wear durability.
The composites with fluorinated graphene have good mechanical properties and bio - compatibility, making them a suitable artificial joint replacement.
Nanodiamonds' tribological properties make them ideal for reinforcing polymer in mechanical face seals.
Gogotsi, Tribological properties of nanodiamond-epoxy composites, Tribol.
It includes increase in elastic and hardness modulus (by 60 to 70 percent), as well as wear-induced micro-structural alterations affecting contact of SWCNTs, might be attributed to the higher wear durability.
The composites with fluorinated graphene have good mechanical properties and bio - compatibility, making them a suitable artificial joint replacement.
Nanodiamonds' tribological properties make them ideal for reinforcing polymer in mechanical face seals.
Gogotsi, Tribological properties of nanodiamond-epoxy composites, Tribol.