Browsing by Author "Mahamood, R. M."
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Item Additive Manufacturing: Laser Metal Deposition and effect of Preheating on properties of deposited Ti-4822-4 alloy(IGI Global, 2019) Abdulrahman, K. O.; Akinlabi, E. T.; Mahamood, R. M.Three-dimensional printing has evolved into an advanced laser additive manufacturing (AM) process with capacity of directly producing parts through CAD model. AM technology parts are fabricated through layer by layer build-up additive process. AM technology cuts down material wastage, reduces buy-to-fly ratio, fabricates complex parts, and repairs damaged old functional components. Titanium aluminide alloys fall under the group of intermetallic compounds known for high temperature applications and display of superior physical and mechanical properties, which made them most sort after in the aeronautic, energy, and automobile industries. Laser metal deposition is an AM process used in the repair and fabrication of solid components but sometimes associated with thermal induced stresses which sometimes led to cracks in deposited parts. This chapter looks at some AM processes with more emphasis on laser metal deposition technique, effect of LMD processing parameters, and preheating of substrate on the physical, microstructural, and mechanical properties of components produced through AM process.Item Laser Metal Deposition of Titanium Aluminide Composites: A Review(Elsevier-Materials Today, 2018) Abdulrahman, K. O.; Akinlabi, E. T.; Mahamood, R. M.; Pityana, S.; Tlotleng, M.Development of additive manufacturing (AM) from three dimensional printers with ability of producing parts having no need for tooling continue to wax stronger in the manufacturing field. Laser metal deposition, a technique in AM is usually employed to create solid components from model of computer aided design (CAD). Feeding powder supported by shielding gas employed by this technique, is injected into a melt pool produced by accurately focused laser beam on a substrate. This paper discusses some of the AM technologies available, review on laser metal deposition of titanium aluminide on other metals and alloys, relationship between the processing parameters and structural and mechanical properties of products produced, limitation as regards to the processing parameters employed, applications and possible recommendations. © 2018 Elsevier Ltd. All rights reserved.Item Laser Metal Deposition Technique: Sustainability and environmental Impact(Elsevier-Procedia Manufacturing, 2018) Abdulrahman, K. O.; Akinlabi, E. T.; Mahamood, R. M.Additive manufacturing (AM) is a term used in describing a set of manufacturing techniques that employs layer upon layer production of parts and components through the application of 3D model data and inputs of raw material. The technology easily comes to mind in the recent times as processing complexities during production is partly responsible for the high cost of parts and components. Industries such as the heavy machinery consumers, aerospace and casting industry now employs the technology as a way of prolonging service of faulty parts through repair and remanufacturing technology. AM has the tendency to change many production set ups through reduction in cost of production, material wastage, energy usage, component lead time etc. AM technologies also have their own challenges despite numerous advantages associated with them. This paper looks at some of the laser metal deposition techniques, their sustainability and environmental impact.Item Manufacturing of aluminium composite materials: A review. In Hierarchical composite materials: Materials, Manufacturing and Engineering(Walter de Gruyter, 2018) Abdulrahman, K. O.; Akinlabi, E. T.; Mahamood, R. M.Item Metallurgical and Corrosion Property of Additive Manufactured Titanium Alloy-Ti6al4v.(Faculty of Engineering, Department of Manufacturing Engineering / Galati University Press, 2020) Mahamood, R. M.; Marvins, T.; Abdulrahman, K. O.; Shuaib-Babata, Y. L.; Adebisi, J. A.; Akinlabi, S. A.; Hassan, S. E.; Akinlabi, T.Additive manufacturing (AM) is an important manufacturing technology that has changed the way products are designed and manufactured. Laser Metal Deposition (LMD), an AM technology, has the capability of producing components using a 3Dimensional CAD model, through a layer by layer formation process just like any other AM technology. In this study, the influence of the scanning speed on the corrosion property of Titanium alloy-Ti6Al4V using LMD process was investigated. The scanning speed varied between 0.02 m/s and 0.14 m/s while other processing parameters were kept constant. The electrochemical corrosion test was conducted in sodium chloride (NaCl) solution. The result revealed that the corrosion resistance property was found to increase with the scanning speed.