The role of transverse speed on deposition height and material efficiency in laser deposited titanium alloy
- Mahamood, Rasheedat M., Akinlabi, Esther Titilayo, Shukla, Mukul, Pityana, Sisa
- Authors: Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo , Shukla, Mukul , Pityana, Sisa
- Date: 2013
- Subjects: Additive manufacturing , Laser metal deposition , Material efficiency , Titanium alloy
- Type: Article
- Identifier: uj:4895 , http://hdl.handle.net/10210/12609
- Description: The most commonly used aerospace titanium alloy, Ti6Al4V, was deposited on Ti6Al4V plate of dimension 72 x 72 x5mm. The laser power of 3 kW, powder flow rate of 1.44 g/min and gas flow rate of 4 l/min were used throughout the deposition process. The transverse/ scanning speed was varied between 0.005 to 0.095 m/sec according to established result of the preliminary study that produces full dense and pore free deposits. The mass of the deposited powder was obtained by weight the substrate before deposition and reweighing after deposition. The substrate and the deposits were thoroughly cleaned using wire brush and acetone to remove unmelted powder particles from the surface of the substrate and the deposit. The height and width of the deposits were measured with Venier Caliper and the material efficiencies were determined using developed equations. The effect of the scanning speed on the material efficiency and deposit height were extensively studied and the results showed that for the set of processing parameter used in this study the optimum scanning speed is approximately 0.045 m/sec.
- Full Text:
- Authors: Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo , Shukla, Mukul , Pityana, Sisa
- Date: 2013
- Subjects: Additive manufacturing , Laser metal deposition , Material efficiency , Titanium alloy
- Type: Article
- Identifier: uj:4895 , http://hdl.handle.net/10210/12609
- Description: The most commonly used aerospace titanium alloy, Ti6Al4V, was deposited on Ti6Al4V plate of dimension 72 x 72 x5mm. The laser power of 3 kW, powder flow rate of 1.44 g/min and gas flow rate of 4 l/min were used throughout the deposition process. The transverse/ scanning speed was varied between 0.005 to 0.095 m/sec according to established result of the preliminary study that produces full dense and pore free deposits. The mass of the deposited powder was obtained by weight the substrate before deposition and reweighing after deposition. The substrate and the deposits were thoroughly cleaned using wire brush and acetone to remove unmelted powder particles from the surface of the substrate and the deposit. The height and width of the deposits were measured with Venier Caliper and the material efficiencies were determined using developed equations. The effect of the scanning speed on the material efficiency and deposit height were extensively studied and the results showed that for the set of processing parameter used in this study the optimum scanning speed is approximately 0.045 m/sec.
- Full Text:
Scanning speed and powder flow rate influence on the properties of laser metal deposition of titanium alloy
- Mahamood, Rasheedat M., Akinlabi, Esther Titilayo
- Authors: Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo
- Date: 2017
- Subjects: Additive manufacturing , Mechanical properties , Optical microscopy
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/238165 , uj:24416 , Citation: Mahamood, R.M. & Akinlabi, E.T. 2017. Scanning speed and powder flow rate influence on the properties of laser metal deposition of titanium alloy.
- Description: Abstract: Ti4Al4V is an important aerospace alloy because of its excellent properties that include high strength to weight ratio and corrosion resistance. In spite of these impressive properties processing titanium is very challenging which contributes to the high cost of the material. laser metal deposition, an important additive manufacturing method is an excellent alternative manufacturing process for Ti6Al4V. The economy of this manufacturing process also depends on the right combination of processing parameters. The principal aim of this study is to know the optimum processing parameters that will result in deposit with sound metallurgical bonding with the substrate with proper mechanical property and better surface finish. This will help to reduce the need for expensive secondary finishing operations using this manufacturing process. This study investigates the influence of scanning speed and the powder flow rate on the resulting properties of the deposited samples. Microstructure, Microhardness and surface finish of Ti6Al4V samples that were produced using the laser metal deposition process over a range of scanning speeds, ranging from 0.02 to 0.12 m/s and powder flow rate of ranging from 0.72 to 6.48 g/min...
- Full Text:
- Authors: Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo
- Date: 2017
- Subjects: Additive manufacturing , Mechanical properties , Optical microscopy
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/238165 , uj:24416 , Citation: Mahamood, R.M. & Akinlabi, E.T. 2017. Scanning speed and powder flow rate influence on the properties of laser metal deposition of titanium alloy.
- Description: Abstract: Ti4Al4V is an important aerospace alloy because of its excellent properties that include high strength to weight ratio and corrosion resistance. In spite of these impressive properties processing titanium is very challenging which contributes to the high cost of the material. laser metal deposition, an important additive manufacturing method is an excellent alternative manufacturing process for Ti6Al4V. The economy of this manufacturing process also depends on the right combination of processing parameters. The principal aim of this study is to know the optimum processing parameters that will result in deposit with sound metallurgical bonding with the substrate with proper mechanical property and better surface finish. This will help to reduce the need for expensive secondary finishing operations using this manufacturing process. This study investigates the influence of scanning speed and the powder flow rate on the resulting properties of the deposited samples. Microstructure, Microhardness and surface finish of Ti6Al4V samples that were produced using the laser metal deposition process over a range of scanning speeds, ranging from 0.02 to 0.12 m/s and powder flow rate of ranging from 0.72 to 6.48 g/min...
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Revolutionary additive manufacturing : an overview
- Mahamood, R. M., Akinlabi, Esther Titilayo, Shukla, M., Pityana, S.
- Authors: Mahamood, R. M. , Akinlabi, Esther Titilayo , Shukla, M. , Pityana, S.
- Date: 2014
- Subjects: Adaptive control , Additive manufacturing
- Type: Article
- Identifier: uj:4993 , http://hdl.handle.net/10210/13128
- Description: Consumer demands are moving away from standardized to customized products, as such, the evolution of alternative manufacturing techniques has become imperative. Additive manufacturing (AM) is a process of building components layer by layer as against the traditional methods which are subtractive in nature. Though AM offers lots of advantages over traditional manufacturing techniques, its wide application is still however in the infancy phase. Despite all the benefits derived from AM technology, there are still a lot of unresolved issues with the technology that has hindered its performance thereby limiting its application to high tolerant jobs. This paper takes a look at some important AM technologies, some problems currently facing AM technology at large and proposes some solutions to these problems. A major known drawback in AM is poor dimensional accuracy and poor surface finish, only the layer height and melt pool temperature are controlled to solve this problem in the literature. The stair-stepping effect in adaptive manufacturing is rooted in a natural phenomenon of surface tension which is the cause of the poor surface finish and in combination with other factors is responsible for the poor dimensional accuracy. An adaptive controller is proposed for removing stair-stepping effect to improve the dimension accuracy, the surface finish and the mechanical properties of the components. Successful implementation of these proposed controllers will greatly improve the performance of AM technologies and also aid its wide application for end use products. Further research work is also suggested to improve the overall AM performance.
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- Authors: Mahamood, R. M. , Akinlabi, Esther Titilayo , Shukla, M. , Pityana, S.
- Date: 2014
- Subjects: Adaptive control , Additive manufacturing
- Type: Article
- Identifier: uj:4993 , http://hdl.handle.net/10210/13128
- Description: Consumer demands are moving away from standardized to customized products, as such, the evolution of alternative manufacturing techniques has become imperative. Additive manufacturing (AM) is a process of building components layer by layer as against the traditional methods which are subtractive in nature. Though AM offers lots of advantages over traditional manufacturing techniques, its wide application is still however in the infancy phase. Despite all the benefits derived from AM technology, there are still a lot of unresolved issues with the technology that has hindered its performance thereby limiting its application to high tolerant jobs. This paper takes a look at some important AM technologies, some problems currently facing AM technology at large and proposes some solutions to these problems. A major known drawback in AM is poor dimensional accuracy and poor surface finish, only the layer height and melt pool temperature are controlled to solve this problem in the literature. The stair-stepping effect in adaptive manufacturing is rooted in a natural phenomenon of surface tension which is the cause of the poor surface finish and in combination with other factors is responsible for the poor dimensional accuracy. An adaptive controller is proposed for removing stair-stepping effect to improve the dimension accuracy, the surface finish and the mechanical properties of the components. Successful implementation of these proposed controllers will greatly improve the performance of AM technologies and also aid its wide application for end use products. Further research work is also suggested to improve the overall AM performance.
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Recent developments in additive manufacturing of gears : a review
- Authors: Gupta, Kapil
- Date: 2018
- Subjects: Additive manufacturing , Gear , Miniaturization
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/279985 , uj:30079 , Citation: Gupta, K. 2018. Recent developments in additive manufacturing of gears : a review.
- Description: Abstract: Additive Layer Manufacturing (ALM) is an advanced technology to produce quality gears of metals and plastics. Some significant benefits such as capability to handle complex gear shapes and design, and produce near net-shaped gears; resource efficiency; and rapid product development etc. make this process a sustainable alternate to the other processes of gear manufacturing. This paper sheds light on the development of some of the important additive layer manufacturing processes such as Stereolithography, Fused Deposition Modeling, and 3D Printing to manufacture gears. The article aims to facilitate researchers and encourages them to do further research and development for improved gear quality, process productivity, and sustainability.
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- Authors: Gupta, Kapil
- Date: 2018
- Subjects: Additive manufacturing , Gear , Miniaturization
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/279985 , uj:30079 , Citation: Gupta, K. 2018. Recent developments in additive manufacturing of gears : a review.
- Description: Abstract: Additive Layer Manufacturing (ALM) is an advanced technology to produce quality gears of metals and plastics. Some significant benefits such as capability to handle complex gear shapes and design, and produce near net-shaped gears; resource efficiency; and rapid product development etc. make this process a sustainable alternate to the other processes of gear manufacturing. This paper sheds light on the development of some of the important additive layer manufacturing processes such as Stereolithography, Fused Deposition Modeling, and 3D Printing to manufacture gears. The article aims to facilitate researchers and encourages them to do further research and development for improved gear quality, process productivity, and sustainability.
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Microstructure and microhardness of 17-4 ph stainless steel made by laser metal deposition
- Bayode, A., Akinlabi, Esther Titilayo, Pityana, S.
- Authors: Bayode, A. , Akinlabi, Esther Titilayo , Pityana, S.
- Date: 2016
- Subjects: Additive manufacturing , Laser metal deposition , Microstructure
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/214385 , uj:21275 , Citation: Bayode, A., Akinlabi, E & Pityana, S. 2016. Microstructure and microhardness of 17-4 ph stainless steel made by laser metal deposition.
- Description: Abstract: Laser metal deposition (LMD) is an additive manufacturing process. Unlike conventional manufacturing process which is subtractive, LMD produces part layer by layer from the ground up and has been used to fabricate fully dense components using a variety of metallic powders. This paper investigates the evolving properties of laser deposited 17- 4PH stainless steel. The microstructure was martensitic with a dendritic structure. The average microhardness of the samples was found to be less than their wrought counterpart.
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- Authors: Bayode, A. , Akinlabi, Esther Titilayo , Pityana, S.
- Date: 2016
- Subjects: Additive manufacturing , Laser metal deposition , Microstructure
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/214385 , uj:21275 , Citation: Bayode, A., Akinlabi, E & Pityana, S. 2016. Microstructure and microhardness of 17-4 ph stainless steel made by laser metal deposition.
- Description: Abstract: Laser metal deposition (LMD) is an additive manufacturing process. Unlike conventional manufacturing process which is subtractive, LMD produces part layer by layer from the ground up and has been used to fabricate fully dense components using a variety of metallic powders. This paper investigates the evolving properties of laser deposited 17- 4PH stainless steel. The microstructure was martensitic with a dendritic structure. The average microhardness of the samples was found to be less than their wrought counterpart.
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Localisation of silica sand for additive manufacturing applications
- Authors: Dady, Oyombo
- Date: 2020
- Subjects: Additive manufacturing , Three-dimensional printing , Sintering
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/479547 , uj:43381
- Description: Abstract: Three-dimensional printing (3DP) in the metal industry is used for the rapid production of sand parts, inter alia, moulds and cores. Due to its accessibility and affordability, the sand used most in the metal fabrication industry is silica. Voxeljet sand, an imported sand developed and provided by Voxeljet for use with the Voxeljet 3DP, is more expensive than local sand, making the cost of 3DP prohibitively high and preventing widespread adoption of 3DP for the manufacture of sand parts. If suitable, sourcing the sand locally could offer a cost saving that would assist the local foundry industry... , M.Tech. (Engineering Metallurgy)
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- Authors: Dady, Oyombo
- Date: 2020
- Subjects: Additive manufacturing , Three-dimensional printing , Sintering
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/479547 , uj:43381
- Description: Abstract: Three-dimensional printing (3DP) in the metal industry is used for the rapid production of sand parts, inter alia, moulds and cores. Due to its accessibility and affordability, the sand used most in the metal fabrication industry is silica. Voxeljet sand, an imported sand developed and provided by Voxeljet for use with the Voxeljet 3DP, is more expensive than local sand, making the cost of 3DP prohibitively high and preventing widespread adoption of 3DP for the manufacture of sand parts. If suitable, sourcing the sand locally could offer a cost saving that would assist the local foundry industry... , M.Tech. (Engineering Metallurgy)
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Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of titanium alloy
- Mahamood, Rasheedat M., Akinlabi, Esther Titilayo, Owolabi, Moses G.
- Authors: Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo , Owolabi, Moses G.
- Date: 2017
- Subjects: Component , Additive manufacturing , Dilution
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/237440 , uj:24326 , Citation: Mahamood, R.M., Akinlabi, E.T. & Owolabi, M.G. 2017. Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of titanium alloy.
- Description: Abstract: The influence of processing parameters on the resulting properties of laser metal deposition process cannot be overemphasized. In this research, the influence of laser power and powder flow rate on the dilution and surface roughness value produced are critically studied.. The laser power was set between 1.8 kW and 3.0 kW, while the powder flow rate was set between 2.88 and 5.76 g/min. The scanning speed and the gas flow rate were maintained at constant values of 0.05m/s and 4l/min respectively. The study revealed that, as the laser power was increased, the degree of dilution increases but the average surface roughness value decreases. Also, as the powder flow rate was increased, the dilution decreases and the average surface roughness increases. The study shows that it is important to keep the powder flow rare low so as to achieve a better surface finished and also not to use too high laser power as this will result in higher dilution, which is not desirable in the laser additive manufacturing process because it will affect the dimensional accuracy of the part under processing.
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- Authors: Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo , Owolabi, Moses G.
- Date: 2017
- Subjects: Component , Additive manufacturing , Dilution
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/237440 , uj:24326 , Citation: Mahamood, R.M., Akinlabi, E.T. & Owolabi, M.G. 2017. Effect of laser power and powder flow rate on dilution rate and surface finish produced during laser metal deposition of titanium alloy.
- Description: Abstract: The influence of processing parameters on the resulting properties of laser metal deposition process cannot be overemphasized. In this research, the influence of laser power and powder flow rate on the dilution and surface roughness value produced are critically studied.. The laser power was set between 1.8 kW and 3.0 kW, while the powder flow rate was set between 2.88 and 5.76 g/min. The scanning speed and the gas flow rate were maintained at constant values of 0.05m/s and 4l/min respectively. The study revealed that, as the laser power was increased, the degree of dilution increases but the average surface roughness value decreases. Also, as the powder flow rate was increased, the dilution decreases and the average surface roughness increases. The study shows that it is important to keep the powder flow rare low so as to achieve a better surface finished and also not to use too high laser power as this will result in higher dilution, which is not desirable in the laser additive manufacturing process because it will affect the dimensional accuracy of the part under processing.
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Design life cycle of a 3-D printed hydrocyclone
- Tina, Sandrine A. Tcheuhebou, Bhamjee, Muaaz, Nel, Andre L.
- Authors: Tina, Sandrine A. Tcheuhebou , Bhamjee, Muaaz , Nel, Andre L.
- Date: 2016
- Subjects: Additive manufacturing , 3-D printing , Particle separation
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/93155 , uj:20314 , Citation: Tina, S.A.T., Bhamjee, M. & Nel, A.L. 2016. Design life cycle of a 3-D printed hydrocyclone.
- Description: Abstract: In mineral processing solid-fluid mixtures are separated in various ways. Of these, hydrocyclones are found to be a simple and low cost technique for particle separation. Additive Manufacturing (AM) technology has the potential to improve the design and testing process for hydrocyclones. The aim of this study is to evaluate the effectiveness of using AM and surface treatments to optimise hydrocyclone design. The hydrocyclone used in these experiments is based on a commercial model used in practice. The hydrocyclone was manufactured with a common plastic material (ABS+) and was fabricated by use a Rapid Prototyping Additive Manufacturing (RPAM) technique. This paper describes the 3-D design printing (3DDP) and manufacture of a hydrocyclone design based on a commercial design using RPAM and a surface protection process. Based on the results of this study, this process has the potential to reduce development time and cost to produce an optimal hydrocyclone design iteration.
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- Authors: Tina, Sandrine A. Tcheuhebou , Bhamjee, Muaaz , Nel, Andre L.
- Date: 2016
- Subjects: Additive manufacturing , 3-D printing , Particle separation
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/93155 , uj:20314 , Citation: Tina, S.A.T., Bhamjee, M. & Nel, A.L. 2016. Design life cycle of a 3-D printed hydrocyclone.
- Description: Abstract: In mineral processing solid-fluid mixtures are separated in various ways. Of these, hydrocyclones are found to be a simple and low cost technique for particle separation. Additive Manufacturing (AM) technology has the potential to improve the design and testing process for hydrocyclones. The aim of this study is to evaluate the effectiveness of using AM and surface treatments to optimise hydrocyclone design. The hydrocyclone used in these experiments is based on a commercial model used in practice. The hydrocyclone was manufactured with a common plastic material (ABS+) and was fabricated by use a Rapid Prototyping Additive Manufacturing (RPAM) technique. This paper describes the 3-D design printing (3DDP) and manufacture of a hydrocyclone design based on a commercial design using RPAM and a surface protection process. Based on the results of this study, this process has the potential to reduce development time and cost to produce an optimal hydrocyclone design iteration.
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An Investigation on Achieving Sustainability in Fused Deposition Modeling via Topology Optimization
- Authors: Espach, A. , Gupta, K.
- Date: 2021
- Subjects: Additive manufacturing , FDM , Topology optimization , Sustainability
- Language: English
- Type: Book chapter
- Identifier: http://hdl.handle.net/10210/487305 , uj:44356 , SSN: 2197-8581 , https://doi.org/10.3991/ijes.v9i3.23595 , Citation:Espach, A.Gupta, K.(2021). An Investigation on Achieving Sustainability in Fused Deposition Modeling via Topology Optimization. International Journal of Recent Contributions from Engineering.9(3);1-16.
- Description: Abstract: Please refer to full text to view abstract.
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- Authors: Espach, A. , Gupta, K.
- Date: 2021
- Subjects: Additive manufacturing , FDM , Topology optimization , Sustainability
- Language: English
- Type: Book chapter
- Identifier: http://hdl.handle.net/10210/487305 , uj:44356 , SSN: 2197-8581 , https://doi.org/10.3991/ijes.v9i3.23595 , Citation:Espach, A.Gupta, K.(2021). An Investigation on Achieving Sustainability in Fused Deposition Modeling via Topology Optimization. International Journal of Recent Contributions from Engineering.9(3);1-16.
- Description: Abstract: Please refer to full text to view abstract.
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Advanced manufacture of compositionally composite graded materials : an overview
- Mahamood, R.M., Akinlabi, Esther Titilayo, Abdulrahman, K.O., Owolabi, M.G.
- Authors: Mahamood, R.M. , Akinlabi, Esther Titilayo , Abdulrahman, K.O. , Owolabi, M.G.
- Date: 2018
- Subjects: Additive manufacturing , Functionally graded materials , Selective laser melting
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291077 , uj:31601 , Citation: Mahamood, R.M., Akinlabi, E.T. & Abdulrahman, K.O. 2018. Advanced manufacture of compositionally composite graded materials : an overview.
- Description: Abstract: Compositionally graded composite materials are advanced materials that consists of inhomogeneous composition as well as structure that varies across the entire volume and with changing properties. Functionally graded materials are produced through different manufacturing processes which include centrifugal method, powder metallurgy method, and additive manufacturing technology. Additive Manufacturing (AM) is an advanced manufacturing process used to produce three dimensional objects simply by adding materials in layers using the digital image of the component. In this chapter, the production of compositionally graded composite materials using an advanced manufacturing method, laser additive manufacturing technologies, which include selective laser melting/sintering and laser metal deposition/laser material deposition (LMD) processes are reviewed and the recent research progress are also presented.
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- Authors: Mahamood, R.M. , Akinlabi, Esther Titilayo , Abdulrahman, K.O. , Owolabi, M.G.
- Date: 2018
- Subjects: Additive manufacturing , Functionally graded materials , Selective laser melting
- Language: English
- Type: Book Chapter
- Identifier: http://hdl.handle.net/10210/291077 , uj:31601 , Citation: Mahamood, R.M., Akinlabi, E.T. & Abdulrahman, K.O. 2018. Advanced manufacture of compositionally composite graded materials : an overview.
- Description: Abstract: Compositionally graded composite materials are advanced materials that consists of inhomogeneous composition as well as structure that varies across the entire volume and with changing properties. Functionally graded materials are produced through different manufacturing processes which include centrifugal method, powder metallurgy method, and additive manufacturing technology. Additive Manufacturing (AM) is an advanced manufacturing process used to produce three dimensional objects simply by adding materials in layers using the digital image of the component. In this chapter, the production of compositionally graded composite materials using an advanced manufacturing method, laser additive manufacturing technologies, which include selective laser melting/sintering and laser metal deposition/laser material deposition (LMD) processes are reviewed and the recent research progress are also presented.
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Additive manufacturing : the future of manufacturing
- Adekanye, Adefemi, Mahamood, Rasheedat M., Akinlabi, Esther Titilayo, Owolabi, Moses G.
- Authors: Adekanye, Adefemi , Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo , Owolabi, Moses G.
- Date: 2017
- Subjects: Additive manufacturing , Fused deposition modelling , Laser metal deposition
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/248998 , uj:25901 , Citation: Adekanye, A. et al. 2017. Additive manufacturing : the future of manufacturing.
- Description: Abstract: Additive manufacturing process is an advanced manufacturing method that is used to fabricate prototypes, tooling, as well as functional product. Additive manufacturing process can produce complex part as a single unit object that was not possible with the traditional manufacturing methods. There are different types of additive manufacturing technologies which include selective laser melting, laser metal deposition process, fused deposition modelling and electron beam melting. All these additive manufacturing technologies produce three dimensional (3D) objects by adding materials layer after layer. The 3D object is built directly from the 3D computer aided design (CAD) model of the object. Additive manufacturing is a very promising manufacturing method for the aerospace industry in particular because of its ability to reduce buyto- fly ratio. This technology is the technology of the future because it is going to change the way products are designed and manufactured. In this research, various additive manufacturing technologies are described in detail and some of the research works in this field are also presented. The future research directions are also highlighted.
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- Authors: Adekanye, Adefemi , Mahamood, Rasheedat M. , Akinlabi, Esther Titilayo , Owolabi, Moses G.
- Date: 2017
- Subjects: Additive manufacturing , Fused deposition modelling , Laser metal deposition
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/248998 , uj:25901 , Citation: Adekanye, A. et al. 2017. Additive manufacturing : the future of manufacturing.
- Description: Abstract: Additive manufacturing process is an advanced manufacturing method that is used to fabricate prototypes, tooling, as well as functional product. Additive manufacturing process can produce complex part as a single unit object that was not possible with the traditional manufacturing methods. There are different types of additive manufacturing technologies which include selective laser melting, laser metal deposition process, fused deposition modelling and electron beam melting. All these additive manufacturing technologies produce three dimensional (3D) objects by adding materials layer after layer. The 3D object is built directly from the 3D computer aided design (CAD) model of the object. Additive manufacturing is a very promising manufacturing method for the aerospace industry in particular because of its ability to reduce buyto- fly ratio. This technology is the technology of the future because it is going to change the way products are designed and manufactured. In this research, various additive manufacturing technologies are described in detail and some of the research works in this field are also presented. The future research directions are also highlighted.
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3D printing for sustainable low-income housing in South Africa : a case for the urban poor
- Aghimien, Douglas, Aigbavboa, Clinton, Aghimien, Lerato, Thwala, Wellington, Ndlovu, Lebu
- Authors: Aghimien, Douglas , Aigbavboa, Clinton , Aghimien, Lerato , Thwala, Wellington , Ndlovu, Lebu
- Date: 2021
- Subjects: 3D printing , Additive manufacturing , Low-income housing
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/483421 , uj:43873 , Citation: Aghimien, D., Aigbavboa, C., Thwala, W. & Ndlovu, L. 2021. 3D printing for sustainable low-income housing in South Africa : a case for the urban poor.
- Description: Abstract: This paper presents the findings of an assessment of the possible measures needed for the adoption of three-dimensional (3D) printing for sustainable low-income houses that can be beneficial to the urban poor. The study adopted a quantitative approach and answers were sought from construction professionals actively involved in a construction project in the country. The study revealed through factor analysis that 3D printing for sustainable low-income housing delivery in South Africa could be encouraged through effective promotion and training, government support, improvement of 3D printing technology, and affordability of the technology. The study contributes significantly to the body of knowledge as it reveals the possible measures for improving the adoption of 3D printing in housing delivery in South Africa—an aspect that has not gained significant attention in the fourth industrial revolution and housing delivery discourse in the country.
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- Authors: Aghimien, Douglas , Aigbavboa, Clinton , Aghimien, Lerato , Thwala, Wellington , Ndlovu, Lebu
- Date: 2021
- Subjects: 3D printing , Additive manufacturing , Low-income housing
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/483421 , uj:43873 , Citation: Aghimien, D., Aigbavboa, C., Thwala, W. & Ndlovu, L. 2021. 3D printing for sustainable low-income housing in South Africa : a case for the urban poor.
- Description: Abstract: This paper presents the findings of an assessment of the possible measures needed for the adoption of three-dimensional (3D) printing for sustainable low-income houses that can be beneficial to the urban poor. The study adopted a quantitative approach and answers were sought from construction professionals actively involved in a construction project in the country. The study revealed through factor analysis that 3D printing for sustainable low-income housing delivery in South Africa could be encouraged through effective promotion and training, government support, improvement of 3D printing technology, and affordability of the technology. The study contributes significantly to the body of knowledge as it reveals the possible measures for improving the adoption of 3D printing in housing delivery in South Africa—an aspect that has not gained significant attention in the fourth industrial revolution and housing delivery discourse in the country.
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