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Browsing by Subject "Laser additive manufacturing"

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Additive manufacturing: Characterization of TI-6AI-4V alloy intended for biomedical application

Author: Ramosoeu, ME ; Chikwanda, HK ; Bolokang, AS ; Booysen, G ; Ngonda, TN Date: Oct 2010 Direct Metal Laser Sintering (DMLS) is one of the new Laser Additive Manufacturing (LAM) techniques used for producing complex topology components mostly found in medical applications. The work presented in this paper focuses on metallographic ... Read more
Application of laser additive manufacturing to produce dies for aluminium high pressure die casting

Author: Pereira, MFVT ; Williams, M ; Du Preez, WB Date: Jul 2012 A number of laser additive manufacturing (LAM) technologies can produce fully-dense metal components that potentially offer opportunities to apply the technology in die or mould making (known as rapid tooling). From these LAM technologies, ... Read more
CFD model of laser additive manufacturing process of cylinders

Author: Tamsaout, T ; Kheloufi, K ; Amara, EH ; Arthur, Nana KK ; Pityana, Sisa L Date: Nov 2017 A theoretical approach based on a numerical simulation using experimental data is proposed as a contribution to the study of laser-based additive manufacturing by direct energy deposition (DED). The aim is to simulate the stages of layer-by-layer ... Read more
The comparative study of the microstructural and corrosion behaviour of laser-deposited high entropy alloys

Author: Dada, M ; Popoola, P ; Mathe, Ntombizodwa R ; Pityana, Sisa L ; Adeosun, S ; Aramide, O Date: Jun 2021 Corrosion is a conservational occurrence that has a large economic impact on most metals and its alloys because it destroys and deteriorates most materials by an electrochemical process through the reaction of these materials with the ... Read more
Effect of laser parameters on the properties of high entropy alloys: A preliminary study

Author: Dada, M ; Popoola, P ; Mathe, Ntombizodwa R ; Pityana, Sisa L ; Adeosun, S Date: May 2020 This preliminary study investigates the fabrication of Al-Co-Cr-Fe-Ni-Cu and Al-Ti-Cr-Fe-Co-Ni High Entropy Alloys with the Laser Deposition Technique. The effect of the laser parameters on the microstructure and hardness properties of the ... Read more
Fabrication and hardness behaviour of high entropy alloys

Author: Dada, M ; Popoola, P ; Mathe, Ntombizodwa R ; Pityana, Sisa L ; Adeosun, A ; Lengopeng, Thabo Date: Feb 2020 Laser additive manufacturing is a direct energy deposition process which manufactures components from 3D model data in progressive layers until a whole part is built as opposed subtractive manufacturing. However, during the procedure, the ... Read more
High entropy alloys for aerospace applications

Author: Dada, M ; Popoola, P ; Adeosun, S ; Mathe, Ntombizodwa R Date: Sep 2019 In the aerospace industry, materials used as modern engine components must be able to withstand extreme operating temperatures, creep, fatigue crack growth and translational movements of parts at high speed. Therefore, the parts produced must ... Read more
High entropy alloys for aerospace applications

Author: Dada, M ; Popoola, P ; Adeosun, S ; Mathe, Ntombizodwa R Date: Sep 2019 In the aerospace industry, materials used as modern engine components must be able to withstand extreme operating temperatures, creep, fatigue crack growth and translational movements of parts at high speed. Therefore, the parts produced must ... Read more
Improving the durability of tillage tools through surface modification - a review

Author: Aramide, B ; Pityana, Sisa L ; Sadiku, R ; Jamiru, T ; Popoola, P Date: Jun 2021 Farming tools are often exposed to high wear rate in dry agricultural land areas. This makes the farming activity to have problems of recurrent labour, idle time, and the extra expenses in replacing the damaged implements like ploughshares. ... Read more
Influence of Ti and Cu on the corrosion properties of laser-deposited high entropy alloys

Author: Dada, M ; Popoola, P ; Mathe, Ntombizodwa R ; Pityana, Sisa L ; Adeosun, S ; Dlamini, Thembisile P ; Aramide, O Date: Nov 2021 In this study, AlCoCrFeNiCu (Cu-based) and AlCoCrFeNiTi (Ti-based) high entropy alloys were fabricated using laser additive manufacturing. The influence of the alloying elements and the laser processing parameters, the laser power and scanning ... Read more
Investigation of the corrosion behaviour of TiC/Ti6Al4V manufactured through laser additive manufacturing

Author: Kgomo, Matshela TH ; Masina, Bathusile N ; Lekoadi, Paul M ; Mathoho, Ipfi ; Pesha, Thabo ; Sibisi, T ; Mulaudzi, Vusimusi Date: Nov 2023 This research study focuses on investigating of the corrosion response of TiC/Ti6Al4V composite manufactured by laser additive manufacturing. Corrosion tests for TiC/Ti6Al4V were carried out with 3.5% of NaCl solution at room temperature 25ºC ... Read more
LAM additive manufacturing: A fundamental review on mechanical properties, common defects, dominant processing variables, and its applications

Author: Sibisi, TH ; Shongwe, MB ; Tshabalala, Lerato C ; Mathoho, Ipfi Date: Aug 2023 A cutting-edge manufacturing technology that uses powder or wire as the feeding material and a high-energy heating source is known as metal additive manufacturing (AM). High-performance components for automotive, aerospace, medical, and energy ... Read more
Metallurgical evaluation of laser additive manufactured Ti6Al4V components

Author: Mutombo, K Date: Oct 2013 Ti6Al4V laser manufactured samples were analysed using optical and scanning electron microscopy equipped with X-ray micro-analyser. The presence of a, a(sub2), ß, a', and a'' phases were determined using differential scanning calorimetry. The ... Read more
The microstructure and the wear performance of high carbon ferrochrome Fecrv15 and Fecrv15+cr manufacture through laser additive manufacturing on steel baseplate for tillage application

Author: Aramide, B ; Sadiku, R ; Popoola, P ; Pityana, Sisa L ; Jamiru, T Date: Jan 2022 The enhancement of wear performance of steel baseplate for tillage application was carried out by manufacturing vanadium-chromium carbide coatings in situ by powder infusion of high carbon ferrochrome FeCrV15 powder through laser additive ... Read more
Multiphysics simulation of thermal phenomena in direct laser metal powder deposition

Author: Pityana, Sisa L ; Tlotleng, Monnamme ; Tshabalala, Lerato C ; Makoana, Nkutwane W ; Botes, A ; Hachemi Amara, EL Date: Nov 2016 The direct laser metal deposition (DLMD) is a recently developed technique for manufacturing solid parts, layer by layer, directly from powder. The process uses a high power laser beam focused onto a metallic substrate to generate a molten ... Read more
Optimization of the corrosion property of a high entropy alloy using response surface methodology

Author: Dada, M ; Popoola, P ; Aramide, O ; Mathe, Ntombizodwa R ; Pityana, Sisa L Date: Jun 2020 Laser Additive Manufacturing was used to fabricate AlTiCrFeCoNi high entropy alloy and the corrosion properties of the alloy were investigated in 3.5 wt% NaCl solution. The tests were conducted via potentiodynamic polarization at room temperature ... Read more
A techno-economic analytical approach of laser-based additive manufacturing processes for aerospace applications

Author: Oyesola, M ; Mpofu, K ; Mathe, Ntombizodwa R Date: Aug 2019 Additive manufacturing (AM) of laser-based technological solution is developing at an exponential rate and is stepping towards industrialisation. The value and possibilities it brings to modern design and manufacturing tasks specifically for ... Read more

Now showing items 1-17 of 17

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