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Now showing items 271-280 of 490
Dynamic control for LMD processes using sensor fusion and edge computing
(Elsevier, 2022-09)
The quality of an LMD manufactured object highly depends on different process parameters such as the speed of powder deposition, the applied laser power, the powder feed rate, and other physical parameters such as the ...
Adaptive control for a dual laser beam solution for the welding of high reflectivity dissimilar materials
(Elsevier, 2022-09)
The laser welding technology delivers high flexibility and adaptability to the welding process being able to adjust to complex joint geometries. Additionally, the application of a laser beam minimises the microstructural ...
Blisk blades manufacturing technologies analysis
(Elsevier, 2020-03-09)
The paper presents blisk blades manufactured by different manufacturing processes. In this sense, different milling trajectories are presented, and, super abrasive machining strategies and EDM technologies are also tested. ...
Experimental and numerical research on some fundamental aspects of the WEDM process
(2023-04-21)
El corte por electroerosión por hilo (WEDM) es un método no convencional de mecanizado ampliamente utilizado en la fabricación de componentes de alto valor añadido para las industrias aeroespacial,biomédica y automotriz, ...
The Effects of Lubricooling Ecosustainable Techniques on Tool Wear in Carbon Steel Milling
(MDPI, 2023-04-06)
This research analyses the viability of using cryogenic cooling combined with MQL (minimum quantity lubrication) lubrication, under CryoMQL technology, as a cutting fluid in the industrial environment to justify the increase ...
On the influence of conformity on wheel–rail rolling contact mechanics
(Elsevier, 2016-07)
The aim of this work is to assess the effects of conformity on local contact related quantities at the wheel–rail interface such as traction distributions, subsurface stresses and frictional work distributions.
For this ...
On the non-proportionality between wheel/rail contact forces and speed during wheelset passage over specific welds
(Elsevier, 2018-01)
This study investigates the influence on the wheel-rail contact forces of the running speed and the shape and position of weld defects along the track. For this purpose, a vertical dynamic model in the space domain is used. ...
A contact mechanics study of 3D frictional conformal contact
(Elsevier, 2018-03)
A contact mechanics study of three-dimensional conformal contact with friction is presented, based on numerical calculations with Finite Element models and an extension of Kalker's exact contact theory which takes into ...
Dynamic comparison of different types of slab tracks and ballasted track using a flexible track model
(Sage Publications, 2011-11)
The dynamic performance of a ballasted track and three types of slab tracks is analysed and compared by means of a comprehensive dynamic model of the train-track system, generated using two commercial analysis software ...
In service behavior of components repaired by laser cladding - Process, microstructure and fatigue behavior relationships
(2021-09-16)
Durante esta tesis se ha desarrollado:1. Un modelo analítico del proceso de revestimiento por láser para la aleación Inconel 718, tomando en cuenta las propiedades dependientes de la temperatura y aplicable a otros materiales ...