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Online since: December 2022
Authors: Ali Hasan Hadi, Ali Abbar Khleif
Najm et al.[6] The impacts of several WEDM factors on the heat-affected zone, white layer, and Surface Roughness (SR) of high-speed steel are being investigated.
Methodology and Material used The workpiece material chosen in this study is an alloy of brass metal ASTM (C34500), with (250 x 70 x 20) mm in dimensions, as shown in figure 1, and the chemical composition and mechanical properties listed in tables (table 1, table 2).
The mechanical properties of metal Material Tensile Strength [Mpa] Elongation [%] Yield strength [Mpa] Hardness, Rockwell B Thermal Conductivity [W/m.
The procedure is explained using an analysis of variance (ANOVA) to identify the critical input factors that influence surface roughness.
This experimental work focused on the basic factors and variables that mainly affect (Ra) and variables such as peak current, spark gap, and specific pulse time, which affect the surface quality (Ra).
Methodology and Material used The workpiece material chosen in this study is an alloy of brass metal ASTM (C34500), with (250 x 70 x 20) mm in dimensions, as shown in figure 1, and the chemical composition and mechanical properties listed in tables (table 1, table 2).
The mechanical properties of metal Material Tensile Strength [Mpa] Elongation [%] Yield strength [Mpa] Hardness, Rockwell B Thermal Conductivity [W/m.
The procedure is explained using an analysis of variance (ANOVA) to identify the critical input factors that influence surface roughness.
This experimental work focused on the basic factors and variables that mainly affect (Ra) and variables such as peak current, spark gap, and specific pulse time, which affect the surface quality (Ra).
Online since: October 2016
Authors: Katarzyna Berent, M. Prażmowski, Piotr Bobrowski, Henryk Paul, Wojciech Skuza
Different stand-off distances were used to investigate their influence on the microstructure and mechanical properties of the clad fabricated at the same amount of explosive charge.
Introduction The application of laminar composites, due to their unique mechanical, chemical and/or physical properties, has significantly increased in the recent years.
Conclusions This work describes the macro-/meso- scale analyses of the microstructure and the chemical composition changes that occur in the interfacial layers of explosively welded sheets, as well as the mechanical properties of the clads, based on Cu and Ti.
Findik, The influence of some factors on steel/steel bonding quality on there characteristics of explosive welding joints, J.
Gulec, Microstructural and mechanical properties of Cu–Ti plates bonded through explosive welding process, J.
Introduction The application of laminar composites, due to their unique mechanical, chemical and/or physical properties, has significantly increased in the recent years.
Conclusions This work describes the macro-/meso- scale analyses of the microstructure and the chemical composition changes that occur in the interfacial layers of explosively welded sheets, as well as the mechanical properties of the clads, based on Cu and Ti.
Findik, The influence of some factors on steel/steel bonding quality on there characteristics of explosive welding joints, J.
Gulec, Microstructural and mechanical properties of Cu–Ti plates bonded through explosive welding process, J.
Online since: June 2011
Authors: Luigi Tricarico, Donato Sorgente, Leonardo Daniele Scintilla
The low thermal conductivity and the high chemical activity of titanium alloys lead, in fact, to alterations of the surface properties of the machined zone.
In this way, it is possible to obtain complex structures, reducing the overall costs because the effectiveness of a thermal process, that depends on the thermal properties rather than the mechanical properties of the material to be machined.
However, laser cutting of titanium alloy leads to alteration of the surface properties of the machined zone.
The resultant modified material due to the enrichment of these elements, shows much brittleness which will directly influence the mechanical properties and reduce the corrosion resistance of titanium alloys.
The experimental activity was carried out by the use of 2k factorial design with k=2 factors.
In this way, it is possible to obtain complex structures, reducing the overall costs because the effectiveness of a thermal process, that depends on the thermal properties rather than the mechanical properties of the material to be machined.
However, laser cutting of titanium alloy leads to alteration of the surface properties of the machined zone.
The resultant modified material due to the enrichment of these elements, shows much brittleness which will directly influence the mechanical properties and reduce the corrosion resistance of titanium alloys.
The experimental activity was carried out by the use of 2k factorial design with k=2 factors.
Online since: August 2014
Authors: Muhd Fadhil Nuruddin, Lukman Ismail, Zakaria Man, Khairun Azizi Mohd Azizli, Afshan Asif
There is so much work done on different factors of geopolymers.
Geopolymerization depends on many factors including chemical composition of raw material, Si/Al ratio, Solid/Water ratio, Sodium hydroxide concentration, water content, curing time and temperature etc [1].The author [4, 5] showed that geopolymers give optimum properties by using raw material as fly ash with sodium hydroxide and sodium silicate solution.
Whereas the decrease in mechanical strength after Si/Al 2:1 (Si/Al 2.5 and 3) suggest that the high quantity of silica affects the mechanical property.
"Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature."
"The effect of alkali and Si/Al ratio on the development of mechanical properties of metakaolin-based geopolymers."
Geopolymerization depends on many factors including chemical composition of raw material, Si/Al ratio, Solid/Water ratio, Sodium hydroxide concentration, water content, curing time and temperature etc [1].The author [4, 5] showed that geopolymers give optimum properties by using raw material as fly ash with sodium hydroxide and sodium silicate solution.
Whereas the decrease in mechanical strength after Si/Al 2:1 (Si/Al 2.5 and 3) suggest that the high quantity of silica affects the mechanical property.
"Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature."
"The effect of alkali and Si/Al ratio on the development of mechanical properties of metakaolin-based geopolymers."
Online since: November 2010
Authors: Jing Cao, Yong Feng Wang, Chun Xue Wei
As the alloy is very sensitive to the stress, so as to get good magnetic properties, adding some trace elements in the alloy, can greatly improve the magnetic properties.
Except for melting process and heat treatment process, the trace elements changes is the main factor of affecting the magnetic properties.
This article will mainly research on effects of Mo element on the magnetic properties.
Mo is one of the main factors of inhibiting high nickel soft magnetic alloy from forming ordered structure Ni3Fe, the process of ordering effects on the magnetic properties, this is due to that the ordering caused nickel atoms rearrange in face-centered cubic crystal, changed the distance between Ni atoms, and causing the changes of its outer orbit electron spin exchange energy, to change magnetic properties of alloy.
Taking all factors, better alloy components is Ni 78.00wt%, Mo 5.00wt%, Mn 0.90 wt%, Si 0.40 wt%, Fe rest.
Except for melting process and heat treatment process, the trace elements changes is the main factor of affecting the magnetic properties.
This article will mainly research on effects of Mo element on the magnetic properties.
Mo is one of the main factors of inhibiting high nickel soft magnetic alloy from forming ordered structure Ni3Fe, the process of ordering effects on the magnetic properties, this is due to that the ordering caused nickel atoms rearrange in face-centered cubic crystal, changed the distance between Ni atoms, and causing the changes of its outer orbit electron spin exchange energy, to change magnetic properties of alloy.
Taking all factors, better alloy components is Ni 78.00wt%, Mo 5.00wt%, Mn 0.90 wt%, Si 0.40 wt%, Fe rest.
Online since: December 2024
Authors: Md. Abdul Azim, Arifur Rahman, Moinul Islam Bijoy, Md. Imranul Islam, Hasan Mazharul Haq
Investigation of the Mechanical Properties of Recycled Cotton Denim Fabric
Hasan Mazharul Haq1,a, Md.
The quality of the yarn is directly influenced by factors such as fiber length, strength, and fineness, which are critical parameters in the production of high-quality recycled denim [23].
Considering its mechanical properties, we suggest potential end uses for this recycled fabric based on these evaluations.
The conventional equipment limits the efficiency and effectiveness of the recycling process, thereby affecting the quality of the final product. 3.
Variability in Mechanical Properties: While recycled cotton denim showed improved tearing strength, its tensile strength was notably lower.
The quality of the yarn is directly influenced by factors such as fiber length, strength, and fineness, which are critical parameters in the production of high-quality recycled denim [23].
Considering its mechanical properties, we suggest potential end uses for this recycled fabric based on these evaluations.
The conventional equipment limits the efficiency and effectiveness of the recycling process, thereby affecting the quality of the final product. 3.
Variability in Mechanical Properties: While recycled cotton denim showed improved tearing strength, its tensile strength was notably lower.
Online since: July 2016
Authors: Jun Wei, Ming Jen Tan, Jun Feng Guo, Zheng Lin Du
Metal matrix composites can provide significantly improvement in the mechanical properties as compared to conventional monolithic materials.
There are various factors that contribute to the strengthening mechanism of composites.
Size parameters characteristic of a material’s microstructure significant affects the mechanical properties of the material when all the other parameters were kept constant.
Guo et al. studied the evolution of grain structure and mechanical properties of the FSP of AA6061 alloy reinforced with nano-Al2O3 reinforcements [8].
Chen, Microstructure evolution and mechanical properties of dissimilar friction stir welded joints between AA1100-B4C MMC and AA6063 alloy, Mater.
There are various factors that contribute to the strengthening mechanism of composites.
Size parameters characteristic of a material’s microstructure significant affects the mechanical properties of the material when all the other parameters were kept constant.
Guo et al. studied the evolution of grain structure and mechanical properties of the FSP of AA6061 alloy reinforced with nano-Al2O3 reinforcements [8].
Chen, Microstructure evolution and mechanical properties of dissimilar friction stir welded joints between AA1100-B4C MMC and AA6063 alloy, Mater.
Online since: December 2013
Authors: Norshah Afizi Shuaib, M. Fathullah, S.M. Nasir, M.F.M.A. Hamzas, Z. Shayfull
Selection of Factors
b.
These factors were chosen based on the thermal properties of is SABIC Innovative Plastics Cycolac MG47 ABS as well as recommended processing value by Autodesk Moldflow Insight 2011 software.
Only the effects of the 5 factors are taken into considerations and other factors are neglected.
As for conformal cooling channel, the most significant factor that affects the warpage is packing pressure at 45.28%.
Filling time which is the most significant factor affecting warpage in straight cooling channel drops to the second position with 28.12%.
These factors were chosen based on the thermal properties of is SABIC Innovative Plastics Cycolac MG47 ABS as well as recommended processing value by Autodesk Moldflow Insight 2011 software.
Only the effects of the 5 factors are taken into considerations and other factors are neglected.
As for conformal cooling channel, the most significant factor that affects the warpage is packing pressure at 45.28%.
Filling time which is the most significant factor affecting warpage in straight cooling channel drops to the second position with 28.12%.
Online since: September 2014
Authors: Giuseppina Ambrogio, Luigino Filice, Francesco Gagliardi, Andrea Ghiotti, Stefania Bruschi
Impact of high speed incremental forming on material properties of AA6082 sheets
Giuseppina Ambrogio 1, a *, Stefania Bruschi2,b , Francesco Gagliardi1,c , Andrea Ghiotti2,d, Luigino Filice1,e
1Dept. of Mechanical, Energy and Management Engineering, University of Calabria - Italy
2Department of Industrial Engineering, University of Padova - Italy
ag.ambrogio@unical.it, bstefania.bruschi@unipd.it, cf.gagliardi@unical.it, dandrea.ghiotti@unipd.it, el.filice@unical.it
Keywords: Incremental Sheet Forming, High Speed, Aluminum.
More in detail, AA6082 sheets have been formed at very high speed as compared to the conventional processes in order to accurately analyze the impact of velocity on material properties.
Furthermore, according to this hypothesis and to the material properties, the experiments were carried out focusing the attention on the quality of the produced part rather than on the formability issue.
Being the attention focused on the proof that ISF could become competitive as compared to conventional deep drawing processes both in terms of quality and time, the experimental plan was designed varying all those factors that may influence the above specified outputs; accordingly, the tool feed rate and tool pitch were chosen as relevant factors for the experimentation and were properly changed, according to the plan shown in Table 1.
This reduces the flexibility but does not affect the conclusions related to material behavior.
More in detail, AA6082 sheets have been formed at very high speed as compared to the conventional processes in order to accurately analyze the impact of velocity on material properties.
Furthermore, according to this hypothesis and to the material properties, the experiments were carried out focusing the attention on the quality of the produced part rather than on the formability issue.
Being the attention focused on the proof that ISF could become competitive as compared to conventional deep drawing processes both in terms of quality and time, the experimental plan was designed varying all those factors that may influence the above specified outputs; accordingly, the tool feed rate and tool pitch were chosen as relevant factors for the experimentation and were properly changed, according to the plan shown in Table 1.
This reduces the flexibility but does not affect the conclusions related to material behavior.
Online since: July 2024
Authors: Antti Järvenpää, Markku Keskitalo, Mikko Hietala, Matias Jaskari, Aappo Mustakangas, Timo Rautio
This study examines how the build orientation affects the mechanical and fatigue properties of Laser Powder Bed Fusion (PBF-LB) produced Ti6Al4V, without heat treatment.
It examines critical factors, such as yield strength, ultimate tensile strength, elongation at break, impact toughness, and flexural bending fatigue performance.
Mechanical Properties of the Ti6Al4V.
Mechanical properties of ti6al4v fabricated by laser powder bed fusion: A review focused on the processing and microstructural parameters influence on the final properties.
Mechanical properties of titanium-based ti– 6al–4v alloys manufactured by powder bed additive manufacture.
It examines critical factors, such as yield strength, ultimate tensile strength, elongation at break, impact toughness, and flexural bending fatigue performance.
Mechanical Properties of the Ti6Al4V.
Mechanical properties of ti6al4v fabricated by laser powder bed fusion: A review focused on the processing and microstructural parameters influence on the final properties.
Mechanical properties of titanium-based ti– 6al–4v alloys manufactured by powder bed additive manufacture.