Listar por autor "5bc3f40ee4c37eee13f494ae3743138d"
Mostrando ítems 1-20 de 125
-
A Coupled Eulerian Lagrangian Model to Predict Fundamental Process Variables and Wear Rate on Ferrite-pearlite Steels
Saez de Buruaga, Mikel; Esnaola, Jon Ander; Aristimuño, Patxi Xabier; Soler Mallol, Daniel; ARRAZOLA, PEDRO JOSE (Elsevier B.V., 2017)A coupled Eulerian-Lagrangian Finite Element model of the orthogonal cutting process was developed to predict the influence that ferritepearlite steel variants have on fundamental process variables and tool wear. As a case ... -
Adiabatic self-heating determination for Ti6Al4V at different temperatures
Sela, Andrés; Ortiz-de-Zarate, Gorka; Soler Mallol, Daniel; ARRAZOLA, PEDRO JOSE (Elsevier, 2023)Nowadays, numerical models are one of the most widely used techniques to predict material performance subjected to different manufacturing processes. However, to obtain accurate predictions, these models require reliable ... -
Advanced measurement techniques to improve predictive modelling of cutting processes by using inverse simulation
Sela, Andrés (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)Machining is one of the most widely employed manufacturing operations, contributing from 3 to 10% of GDP in developed countries. Despite this prevalence, tools and cutting conditions are often chosen on a trial-and-error ... -
An optimization methodology for material databases to improve cutting force predictions when milling martensitic stainless steel JETHETE-M152
Aristimuño, Patxi Xabier; Basagoiti, Rosa; ARRAZOLA, PEDRO JOSE; Lazkano Rayo, Xabier; Sela, Andrés (Elsevier Ltd., 2018)A material database for JETHETE-M152 was developed applying a novel methodology for improving the precision of cutting forces. This approach defines a variable specific edge force depending on the feed rate and cutting ... -
Analysis of the Tool Stick-Out Influence on Machining Chatter
ARRAZOLA, PEDRO JOSE (2021)Increased stability in machining processes is highly desired by all machining industries when vibrations and specially chatter occur. This phenomenon is defined as a self-excited vibration that occurs due to the regeneration ... -
An analytical approach to calculate stress concentration factors of machined surfaces
Perez Guisado, Ion; ARRAZOLA, PEDRO JOSE; Madariaga, Aitor; CUESTA ZABALAJAUREGUI, MIKEL; Soriano Moreno, Denis (Elsevier Ltd., 2021)Machining operations affect the properties of the final surface layer, and these can impact on its functional per- formance, particularly on fatigue behaviour. Among the properties of the machined surface, surface topography ... -
Analytical model to identify crack initiation in machined aluminium parts
Ortiz-de-Zarate, Gorka; Madariaga, Aitor; Perez Guisado, Ion; ARRAZOLA, PEDRO JOSE (Elsevier, 2024)Thin-walled aluminium components used in the structure of aircrafts are subjected to fatigue loads. Fatigue performance of those components is affected by the surface integrity generated in the last machining step. This ... -
Application of material constitutive and friction models parameters identified with AI and ALE to a CEL orthogonal cutting model
ARRAZOLA, PEDRO JOSE (Elsevier B.V., 2023)The identification of input parameters for funite element modelling of the cutting process is still a complex task as the experimental testing equipment cannot reach its combined levels of strains, strain rates and ... -
Broaching Digital Twin to Predict Forces, Local Overloads, and Surface Topography Irregularities
Ortiz-de-Zarate, Gorka; Madariaga, Aitor; Soler Mallol, Daniel; ARRAZOLA, PEDRO JOSE (MDPI, 2024)Broaching is a key manufacturing process that directly influences the surface integrity of critical components, impacting their functional performance in sectors such as aeronautics, automotive, and energy. Such components ... -
Broaching: Cutting tools and machine tools for manufacturing high quality features in components
ARRAZOLA, PEDRO JOSE (Elsevier Ltd., 2020)Broaching is a unique machining process with high accuracy and surface quality, which is employed in massand batch production for the manufacture of components with highly complex geometries. It involves the use of ... -
The capacity of statistical features extracted from multiple signals to predict tool wear in the drilling process
Duo, Aitor; Basagoiti, Rosa; ARRAZOLA, PEDRO JOSE; Aperribay Zubia, Javier; CUESTA ZABALAJAUREGUI, MIKEL (Springer Verlag, 2019)Industrial processes are being developed under a new scenario based on the digitalisation of manufacturing processes.Through this, it is intended to improve the management of resources, decision-making, ... -
Combining experimental and FEM approaches to determine the influence of workpiece temperature on fundamental variables in the machining process
Ortiz-de-Zarate, Gorka; ARRIETA, Iñaki Mirena; Soriano Moreno, Denis; Oruna Tena, Ainara; Soler Mallol, Daniel; ARRAZOLA, PEDRO JOSE (Materials Research Forum LLC, 2024)In machining it is common practice to use lubricants to enhance machinability, resulting in improved part quality and reduced tool wear. However, emerging efforts are centered on mitigating the environmental impact of ... -
A comparative study of residual stress profiles on Inconel 718 induced by dry face turning
Kortabarria, Aitor; Madariaga, Aitor; Fernandez, Eduardo; Esnaola, Jon Ander; ARRAZOLA, PEDRO JOSE (Elsevier, 2011)Residual stress profiles induced by different dry face turning conditions are compared employing X-ray diffraction method, Hole-Drilling method and Finite Element Modelling. It is well known that the surface integrity ... -
The contribution of microstructure and friction in broaching Ferrite–Pearlite steels
ARRIETA, Iñaki Mirena; ARRAZOLA, PEDRO JOSE (Elsevier Ltd., 2020)Ferrite-Pearlite (FP) steels are used in many automotive components. However, their machinability in low cutting speed processes appears to be highly dependent on their metallurgical state. An experimental approach combining ... -
Correcting distortions of thin-walled machined parts by machine hammer peening
CUESTA ZABALAJAUREGUI, MIKEL; Ortiz-de-Zarate, Gorka; Sáenz de Argandoña, Eneko; Soriano Moreno, Denis; ARRAZOLA, PEDRO JOSE (Elsevier, 2023)Thin-walled aerostructural components frequently get distorted after the machining process. Reworking to correct distortions or eventually rejecting parts significantly increases the cost. This paper proposes a new approach ... -
Cryogenic machining of the aeronautic alloy: Inconel 718
Chaabania, Sana (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)Nickel-based alloys are widely used in the manufacture of aerospace engine components due to their excellent high-temperature thermo-mechanical properties and good corrosion resistance. However, machining these materials ... -
Cutting forces prediction in orthogonal turn-milling operations
OTALORA-ORTEGA, HARRY (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)The development of more versatile machine tools is addressing the increased market demand for more complex shapes and workpieces with strict tolerances. This has resulted in more complicated kinematics, designed to align ... -
Desarrollo de una nueva técnica de análisis de rendimiento de muelas abrasivas para la selección de la muela óptima según aplicación
Fernandez Manchado, Raul (Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2017)Dokumentu honetan aurkezten den doktoretza-tesia, Arrasateko Goi Eskola Politeknikoko Errendimendu Altuko Mekanizatuko ikerketa arloan kokatzen da. Helburu nagusia industri sektore ezberdinetako mekanizazio bidezko ... -
Determination of emissivity and temperature of tool rake face when cutting AISI 4140
Soler Mallol, Daniel; Aristimuño, Patxi Xabier; Saez de Buruaga, Mikel; ARRAZOLA, PEDRO JOSE (Elsevier B.V., 2019)A method for measuring tool temperature in the tool/chip contact zone of the rake face of a tool during dry orthogonal cutting using thermography is presented. This method used a new calibration method that combined with ... -
Determining tool/chip temperatures from thermography measurements in metal cutting
Saez de Buruaga, Mikel; Soler Mallol, Daniel; Aristimuño, Patxi Xabier; Esnaola, Jon Ander; ARRAZOLA, PEDRO JOSE (Elsevier, 2018)Temperature measurement in metal cutting is of central importance as tool wear and surface integrity have been demonstrated to be temperature dependent. In this context, infrared thermography is presented as a reliable ...
