Synthesis, CFD simulation and characterization of direct laser metal deposition (LMD) of Al-Cu-Ti coatings on Ti-6Al-4V alloy for aerospace application

Abstract: This research study was aimed at researching the synthesis, simulation and characterization of Direct Laser Metal Deposition (DLMD) of Al-Cu-Ti Coatings on Ti-6Al- 4V Alloy for aerospace application. This investigation was accomplished by numerical analysis and experimental techniques. In the category of manufacturing techniques (Additive Manufacturing), the Direct Laser Metal Deposition (DLMD) technique is quite a new field in the industry. This manufacturing technique is flexible, in the sense that it can be used to manufacture working parts or components for bigger assemblies, freeform shapes according to the designer specifications, advanced coatings on the surfaces of working components, and fully solid structures. This research also enquires into the enhanced properties (mechanical, hardness and corrosion) of the modified coating powders (Al-Cu-Ti) on the Titanium alloy (Ti-6Al-4V) and its applications for components and parts enhancements in aerospace industries...M.Ing. (Mechanical Engineering Science

Framework for developing large-scale metal additive manufacturing (MAM) systems and procedures

Additive manufacturing (AM) is regarded as one of the most disruptive technologies of this era. However, the technology is still evolving, even as new applications continue to emerge, thus presenting an opportunity to manage disruptive changes more efficaciously, whilst strategically shaping critical innovation efforts. Accordingly, this study focusses on supplementary manufacturing requirements management (SMRM). Presently, maintenance challenges, such as the reworking of serviceable infrastructures and other similarly demanding industrial endeavours, contribute to higher costs, inefficiencies, and waste, with technical and other limitations, including disparate supply circumstances and demand patterns, further compounding issues. Underpinned by SMRM applications, the grounded theory (GT) method was applied, to construct a framework for developing large-scale metal AM (MAM) systems and procedures. Case data was derived from the development and commissioning of a unique system and its embodied concepts, which were predominantly enabled by commercial off-the-shelf (COTS) solutions, and subsequent testing and validation of the resulting open architecture (OA) bulk AM (BAM) platform. Empirical and numerical investigations were facilitated by an industrial titanium (Ti-6Al-4V) aerospace component, which demonstrated the suitability and effectiveness of the BAM platform for specific SMRM operations. While the physical and mechanical properties of derived BAM materials were characteristic, and within range of referenced ASTM standards, disparities between the predicted and quantified effects of reprocessing operations on the component necessitate further investigation. The main output of this study is a GT framework, which identifies six strategic developmental themes for more adoptable, compliant, functional, operable, systemical, and adaptable MAM solutions. Important priorities for improving interrelated system functions, procedures, and performance were also defined, alongside an original technical perspectives management concept, for navigating complex requirements in an evolving technology landscape, via the documentation, clarification, validation, and prioritisation of key elements that significantly impact planned innovations

The selected laser melting production and subsequent post-processing of Ti-6Al-4V prosthetic acetabular

&nbsp;Processing and post processing of human prosthetic acetabular cup by using 3D printing. The results showed using 3D printers leads to fabrication customized implants with higher quality.<br /

Powerskin Conference: Proceedings

The “third skin†of human beings – the building envelope – has a long history of development with a major impact on architecture. As an interface between inside and outside, facades not only determine aspects such as performance and energy efficiency, they also determine the aesthetics of buildings and cities; to the extend that they can create cultural identity. The invention of the curtain wall made facades independent from the building structure, but it remained an important – yet passive – element.&nbsp; Powerskin Conference: Proceedings, January 19th 2017– Munich &nbsp

Safety and Reliability - Safe Societies in a Changing World

The contributions cover a wide range of methodologies and application areas for safety and reliability that contribute to safe societies in a changing world. These methodologies and applications include: - foundations of risk and reliability assessment and management - mathematical methods in reliability and safety - risk assessment - risk management - system reliability - uncertainty analysis - digitalization and big data - prognostics and system health management - occupational safety - accident and incident modeling - maintenance modeling and applications - simulation for safety and reliability analysis - dynamic risk and barrier management - organizational factors and safety culture - human factors and human reliability - resilience engineering - structural reliability - natural hazards - security - economic analysis in risk managemen