The International Journal of Advanced Manufacturing Technology, Год журнала: 2023, Номер 126(9-10), С. 4651 - 4663
Опубликована: Апрель 24, 2023
Язык: Английский
Materials & Design, Год журнала: 2024, Номер 239, С. 112742 - 112742
Опубликована: Фев. 13, 2024
This study explores the fabrication and characterization of a pure copper electrode for an EDM equipment using laser powder bed fusion (LPBF) comparing its performance with original cast sample. The microstructural, mechanical, electrical, thermal, corrosion characteristics samples were analyzed. microstructure additively manufactured (AM) sample exhibited superior mechanical properties, 18% increase in ultimate tensile strength more than two times greater elongation comparison those Moreover, electrical thermal conductivity coefficients AM found to be consistent industry standards as 5.52×107 S/m 361 W/mK, respectively. Additionally, potentiodynamic polarization test results further resistance terms potential particularly 3.5% NaCl environment. Advanced electron microscopy techniques used investigate differences properties shed light on LPBF counterpart. Despite challenges manufacturing components through LPBF, this demonstrates feasibility producing functional part that competes effectively counterparts excels certain aspects.
Язык: Английский
Процитировано
13
American Journal of Engineering and Applied Sciences, Год журнала: 2024, Номер 17(3), С. 116 - 125
Опубликована: Март 1, 2024
The main advantages of Additive Manufacturing (AM) metals in the aerospace industry are part consolidation; reduction lead time, construction complicated structures easily with a great Strength-to-Weight (S:W) ratio; production parts on-demand reduced inventory, uncertainty and costs supply chains. Ti6Al4V nickel-based alloys commonly used AM materials for parts. Ground-based has achieved advances. potential to develop general aviation, aircraft, missiles less massive satellite systems. This study introduces advantages, technologies AM, applications research progress industry; deals state-of-the-art its trends aerospace; highlights challenges future
Язык: Английский
Процитировано
13
Progress in Materials Science, Год журнала: 2024, Номер 147, С. 101357 - 101357
Опубликована: Авг. 25, 2024
In Additive Manufacturing (AM), parts are normally fabricated along the direction perpendicular to build plate. However, main axis of part may differ from this direction, leading concept "build orientation" that is an essential aspect in Design for AM (DfAM). Build orientation defines required support structures, turn affects time, material waste, and part's surface mechanical properties. The present paper reviews literature, focusing on most utilized Powder Bed Fusion (PBF) techniques metal AM. findings categorized based properties affected by orientation. First, manufacturability, geometrical accuracy, roughness, porosity reviewed. Then microstructural analysis, such as hardness, tensile strength, fatigue strength fracture toughness explored, followed wear corrosion Consistent attention given studies describing effects efficiency applicability post-processing techniques. Critical discussion results highlights a major factor be considered design evaluation PBF. addition, prospects field outlined, including necessity creating DfAM guidelines regarding orientation, which current work intended serve starting point.
Язык: Английский
Процитировано
13
Journal of Cleaner Production, Год журнала: 2024, Номер 453, С. 142195 - 142195
Опубликована: Апрель 12, 2024
As the aviation industry strives to minimize its environmental footprint, understanding full life cycle impacts, including maintenance, becomes essential for sustainable development. This paper addresses critical research gap in assessment of aircraft maintenance by conducting a comprehensive based on an Airbus A320 aircraft. By combining top-down check-level analysis and detailed examination manufacturer's planning document, this study provides significant insights into implications activities. The general overview, while document delves individual tasks, enabling identification components with highest ecological impacts. emphasizes importance activities studies valuable guidance researchers, practitioners, policy makers prioritizing sustainability measures enhancing performance throughout their cycle.
Язык: Английский
Процитировано
9
Materials Science and Engineering A, Год журнала: 2025, Номер unknown, С. 147781 - 147781
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
The International Journal of Advanced Manufacturing Technology, Год журнала: 2025, Номер unknown
Опубликована: Янв. 28, 2025
Язык: Английский
Процитировано
1
Materials, Год журнала: 2023, Номер 16(5), С. 1893 - 1893
Опубликована: Фев. 24, 2023
Additive manufacturing is an important and promising process of due to its increasing demand in all industrial sectors, with special relevance those related metallic components since it permits the lightening structures, producing complex geometries a minimum waste material. There are different techniques involved additive that must be carefully selected according chemical composition material final requirements. large amount research devoted technical development mechanical properties components; however, not much attention has been paid yet corrosion behaviour service conditions. The aim this paper deeply analyze interaction between alloys, processing, their behaviour, determining effects main microstructural features defects associated these specific processes, such as grain size, segregation, porosity, among others. resistance most-used systems obtained by (AM) aluminum titanium duplex stainless steels analyzed provide knowledge can platform create new ideas for materials manufacturing. Some conclusions future guidelines establishing good practices tests proposed.
Язык: Английский
Процитировано
21
Advances in Polymer Technology, Год журнала: 2023, Номер 2023, С. 1 - 18
Опубликована: Апрель 19, 2023
In the emerging modern technology of additive manufacturing, need for optimization can be found in literature many places. Additive manufacturing (AM) is making an object layer by directly from digital data. Previous works have classified processes into seven types. However, there a lack comprehensive review describing challenges and opportunities material extrusion process (polymer technology) also FDM polymer materials application impeller making. this paper, specific method called multicriteria decision-making (MCDM) mathematical programming technique used (AMPT) discussed. The other topics such as different types techniques, applications MCDM tools their fields including AM, AMPT particularly are
Язык: Английский
Процитировано
19
Aerospace, Год журнала: 2023, Номер 10(3), С. 247 - 247
Опубликована: Март 3, 2023
A vertical take-off and landing (VTOL) is a type of unmanned aerial vehicle (UAV) that allows for flight in harsh weather surveillance access to remote areas. VTOL can be performed without runway. As such, VOTL UAVs are used areas where there limited space urban locations. The structural endurance further reduced the case fixed-wing UAVs. Long-endurance vehicles allow continuous flight, but their power supply systems must able harvest energy from external sources order meet guidelines. wings these often covered with solar cells. This article presents extended range time tail-sitter incorporates cells on UAV structure. powered by perform aviation missions fewer landings, allowing performance such increased several times over those Simulations accounting use PV panels structure show depending scenario date, VTOLs double spring equinox increase more than six summer solstice.
Язык: Английский
Процитировано
17
The International Journal of Advanced Manufacturing Technology, Год журнала: 2024, Номер 130(9-10), С. 4699 - 4712
Опубликована: Янв. 19, 2024
Abstract A widespread problem of manufacturing processes is represented by the occurrence tool wear that can lead to both poor surface finish and mechanical properties in workpiece. This issue affects also additive technologies such as material extrusion technique. In this process, mechanisms nozzle be severe, particular when materials with a high abrasive capacity, carbon fiber-reinforced polymers, are 3D printed. Despite significance problem, scientific literature lacks systematic evaluations its correlation parts properties. framework, present paper aims at investigating effect evolution on additively manufactured short polyamide. To purpose, printing were performed. The time dependence was analyzed interrupting process fixed intervals. analyze performances printed parts, tensile specimens tested room temperature. reduction samples worsening quality observed increasing wear. Optical microscopy investigation X-ray computed tomography used monitor external internal evolution. roughness measurements performed evaluate parts. Furthermore, scanning electron observe three-dimensional topography longitudinal sections filament Carbon PA, different values, fractured surfaces samples. study help better understand predict service life for industrial applications. addition, it prompt future studies focused
Язык: Английский
Процитировано
7