Author:Maodzeka, DK; Olakanmi, EO; Mosalagae, M; Hagedorn-Hansen, D; Pityana, Sisa LDate:Aug 2022Improper selection of laser powder bed fusion (LPBF) process parameters tends to result in poor quality parts which imposes limitations with respect to the mechanical performance due to process induced defects. To address this LPBF processing ...Read more
Author:Crafford, Gerhardus J; Rosman, BDate:Nov 2022Different reinforcement learning (RL) methods exist to address the problem of combining multiple different learners to generate a superior learner. These existing methods usually assume that each learner uses the same algorithm and/or state ...Read more
Author:Skhosane, Besabakhe S; Masina, Bathusile N; Lekoadi, Paul M; Pityane, Sisa LDate:Nov 2022Metal Matrix Composite (MMC) coatings of Tungsten Carbide (WC) and Nickel (Ni) powder were produced using laser cladding process. A crack free and good metallurgically bonded WC-Ni coating of about 5mm thick produced from varying both laser ...Read more
Author:Bester, Duwan C; Tshabalala, Lerato CDate:Nov 2021The adoption of Additive manufacturing (AM) in South Africa has grown significantly, with more industries investing and investigating the possibility of adoption to their operations. Some of these industries are the railway and mining industries, ...Read more
Author:Sebe, ID; Sithole, ME; Modiba, RosinahDate:Dec 2022Permanent magnet-based technologies are focusing on the use of t-phase magnetic alloys. The t-MnAl permanent magnetic alloys are interesting candidates to fill the performance gap between the expensive rare-earth-based magnets and the low ...Read more
Author:Miya, LE; Sithole, ME; Modiba, RosinahDate:Dec 2021The development of new Nd-Fe-B permanent magnets continues to be a pressing matter for the transition to a green economy. Permanent magnets have become significant in applications of highly efficient energy conversion machines and devices. ...Read more
Author:Lekoadi, Paul M; Maledi, N; Tlotleng, Monnamme; Masina, Bathusile NDate:Feb 2020The investigation of microstructural and hardness properties of high-speed selective laser melted (SLM) produced Ti6Al4V coupons after various heat treatments. Heat treatment was performed in order to homogenize and improve the microstructure ...Read more
Author:Nomqonde, BH; Mashinini, PM; Lekoadi, Paul M; Masina, Bathusile NDate:Nov 2022This study investigated the microstructure evolution of the TiC/Ti-6Al-4V matrix composite produced using a 1073 nm continuous wave (CW), IPG Ytterbium fibre laser. The influence of thermal gradient, overlap, and re-melting of the previous ...Read more
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Siyasiya, Charles; Masina, Bathusile NDate:Nov 2023This study presents the investigation of TiB distribution characteristics on the microstructure of in-situ synthesized TiB/Ti6Al4V single-track composites manufacture with laser metal deposition. Ti6Al4V alloy was reinforced by adding TiB2 ...Read more
Author:Bosscha, Peter ADate:Nov 2022The development, manufacturing and deployment of a South African engineered Continuous Positive Airway Pressure Ventilator is described. The CSIR L.I.F.E. (Lung Inspiratory Flow Enabler) Ventilator was developed during the COVID Pandemic in ...Read more
Author:Boloka, Tlou J; Makondo, N; Rosman, BDate:Jan 2021Deep reinforcement learning has recently been adopted for robot behavior learning, where robot skills are acquired and adapted from data generated by the robot while interacting with its environment through a trial-and-error process. Despite ...Read more
Author:Purdon, Kyla; Setati, Tiro; Marais, Stephen TDate:Nov 2021At the CSIR, a Learning Factory has been established to teach about the fundamentals of robotics and other Industry 4.0 disciplines. The Learning Factory makes use of the Annin Robotics AR3 robot arm: a low-cost robot designed for small ...Read more
Author:Mrwata, K; Siyasiya, C; Arthur, Nana KKDate:Nov 2023This study investigated the influence of beta stabilizer niobium on the microstructure and hardness of Ti-6Al-4V. The relationship between increased the concentration of alloying elements into Ti-6Al-4V is generally associated with an increase ...Read more
Author:Raganya, Mampai L; Moshokoa, Thabiseng; Machaka, Ronald; Obadele, B; Makhatha, MDate:Dec 2022Current research is focused on development of ß-type titanium alloys for biomedical applications as substitutes of the undesirable Ti6Al4V alloy. Ti6Al4V alloy has a higher elastic modulus (110 GPa) than that of the human bone (10-30 GPa) and ...Read more
Author:Mathoho, Ipfi; Arthur, Nana KK; Tlotleng, MonnammeDate:Feb 2023The current study embarked on developing the H950 aging condition for 17-4 PH stainless steel that was manufactured through the DED process. The driving force for carrying out this study was that, when the H950 condition was applied to 17-4 ...Read more
Author:Naicker, Dhananathan M; Purdon, Kyla; Ramruthan, KshirDate:Nov 2023Small South African manufacturing companies, endeavouring to benefit from Fourth Industrial Revolution (4IR) technologies, specifically automation, are restricted by exorbitant costs and the lack of know-how associated with automation. This ...Read more
Author:Moore, K; Kouprianoff, D; Louw, Daniel F; Yadroitsava, I; Yadroitsev, IDate:Dec 2023Delaminations and cracks are detrimental phenomena that hinder the quality of the final product in metal additive manufacturing. The effective use of other online monitoring systems that can detect these deformations and delaminations during ...Read more