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Now showing items 141-150 of 491
Manufacturing Processes of Integral Blade Rotors for Turbomachinery, Processes and New Approaches
(MDPI, 2020-04-28)
Manufacturing techniques applied to turbomachinery components represent a challenge in the aeronautical sector. These components are commonly composed of high resistant super-alloys; in order to satisfy the extreme working ...
Abrasive Disc Performance in Dry-Cutting of Medium-Carbon Steel
(2020-04-19)
Abrasive-cutting processes are widely used to obtain semi-finished products from metal bars, slabs, or tubes. Thus, the abrasive cutting-off process is applied when requiring precision cutting and productivity at a moderate ...
Effects of Gravity and Non-Perpendicularity during Powder-Fed Directed Energy Deposition of Ni-Based Alloy 718 through Two Types of Coaxial Nozzle
(MDPI, 2020-04-24)
The consequences of gravity and the nozzle inclination angle in the powder-fed Directed Energy Deposition (DED) process were examined in this study. We also sought to define guidelines and manufacturing strategies, depending ...
A New Approach in the Design of Microstructured Ultralight Components to Achieve Maximum Functional Performance
(MDPI, 2021-03-24)
In the energy and aeronautics industry, some components need to be very light but with high strength. For instance, turbine blades and structural components under rotational centrifugal forces, or internal supports, ask ...
Fabricación de Componentes Metálicos mediante Fabricación Híbrida Laser DED en máquinas híbridas
(2021-03-22)
El objetivo de esta tesis es la fabricación de componentes metálicos mediante fabricación aditiva láser DED en la máquina híbrida multiprocesos IBARMIA ZVH45/1600 Add+Process. El material central de esta tesis es una ...
Five-Axis Milling of Large Spiral Bevel Gears: Toolpath Definition, Finishing, and Shape Errors
(MDPI, 2018-05)
In this paper, a five-axis machining process is analyzed for large spiral-bevel gears, an interesting process for one-of-kind manufacturing. The work is focused on large sized spiral bevel gears manufacturing using universal ...
Inspection scheduling based onreliability updating of gas turbinewelded structures
(Sage, 2019-01-28)
This article presents a novel methodology for the inspection scheduling of gas turbine welded structures, based on reliability calculations and overhaul findings. The model was based on a probabilistic crack propagation ...
Fatigue Design of Dental Implant Assemblies: A Nominal Stress Approach
(MDPI, 2020-06-03)
Fatigue is the most common mechanical failure type in dental implants. ISO 14801 standardizes fatigue testing of dental implants, providing the load-life curve which is most useful for comparing the fatigue behavior of ...
Fatigue performance of prosthetic screws used in dental implant restorations: Rolled versus cut threads
(Elsevier, 2021-09)
Statement of problem. Cold rolling is widely used for screw thread manufacturing in industry but is less common in implant dentistry, where cutting is the preferred manufacturing method.
Purpose. The purpose of this in ...
New Processes and Machine Tools for Advanced Metal Alloys
(2020-02-06)
Advanced materials are crucial for the development of many industrial sectors such as aerospace, automotive, energy, among others. These materials show superior mechanical characteristics of strength, hardness, toughness, ...