Zerrendatu honen arabera: egilea "7c8971ea8f9dc0587ce0902f1f67aaca"
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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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Development and optimization of a finite element model with remeshing and Lagrangian formulation for the simulation of high deformation manufacturing processes
Valdivia Maldonado, Ignacio Manuel; Oruna, Ainara; Ortiz-de-Zarate, Gorka; Ducobu, François; Germain, Guénaël; ARRAZOLA, PEDRO JOSE (Elsevier, 2025)High deformation manufacturing processes, such as forming and machining, are complex physical phenomena involving severe thermo-mechanical and chemical loads. Traditional industrial-scale empirical methods involve high ... -
Effect of Tool Geometry and LCO2 Cooling on Cutting Forces and Delamination when Drilling CFRP Composites Using PCD Tools
Rodríguez Bogajo, Iñigo; Soriano Moreno, Denis; Ortiz-de-Zarate, Gorka; CUESTA ZABALAJAUREGUI, MIKEL; ARRAZOLA, PEDRO JOSE (Elsevier, 2022)Lightweight materials like Carbon Fiber Reinforced Polymers (CFRPs) present certain challenges, mainly regarding the resultant surface integrity of the holes. Different techniques such as optimized tool geometries, machining ... -
Enhancing surface integrity of A7050-T7451 aluminium alloy by pneumatic machine hammer peening
Madariaga, Aitor; CUESTA ZABALAJAUREGUI, MIKEL; Dominguez Romero, Erika; Garay, Ainara; Ortiz-de-Zarate, Gorka; ARRAZOLA, PEDRO JOSE (Elsevier Ltd., 2022)Aerostructures withstand cyclic mechanical loads and therefore, their design must fulfil surface integrity and fatigue strength requirements. This paper studies the effect of pneumatic machine hammer peening on surface ... -
Evaluation of different flow stress laws coupled with a physical based ductile failure criterion for the modelling of the chip formation process of Ti-6Al-4V under broaching conditions
Ortiz-de-Zarate, Gorka; Saez de Buruaga, Mikel; Soler Mallol, Daniel; ARRAZOLA, PEDRO JOSE (Elsevier, 2019)During the machining of Ti-6Al-4V the changing deformation mechanisms produce a complex microstructure of segmented chips, which directly influenced tool-wear and process stability. Numerical simulation could give an insight ... -
Experimental and FEM analysis of surface integrity when broaching Ti64
Ortiz-de-Zarate, Gorka; Madariaga, Aitor; Garay, Ainara; Azpitarte-Aranzabal, Larraitz; CUESTA ZABALAJAUREGUI, MIKEL; ARRAZOLA, PEDRO JOSE (Elsevier, 2018)The performance of aeronautic critical components is strongly dependent on its fatigue behavior, which is directly linked to their surface integrity condition. Broaching operation is a machining operation extensively used ... -
An experimental methodology to improve the robotic drilling of aluminium alloys
Ducobu, François; Beuscart, Thomas; Dambly, Valentin; Rivière-Lorphèvre, Edouard; Ortiz-de-Zarate, Gorka; ARRAZOLA, PEDRO JOSE (Elsevier, 2025)In aeronautics, mastering the drilling process is crucial to meet strict quality standards. While robots provide a cost-effective solution for drilling large, complex parts, challenges arise in metallic materials due to ... -
Fabrikazio mekanizatuaren erronkak
ARRAZOLA, PEDRO JOSE; Rodríguez Bogajo, Iñigo; Ortiz-de-Zarate, Gorka; Aristimuño, Patxi Xabier (ETB - Elhuyar, 2023) -
FEM modeling of hard turning 42CrMoS4 steel
Saez de Buruaga, Mikel; Gainza, Leire; Aristimuño, Patxi Xabier; Soler Mallol, Daniel; Ortiz-de-Zarate, Gorka; ARRAZOLA, PEDRO JOSE (Elsevier B.V., 2019) -
Finite Element Modeling to Design Optimized TMD for Milling Tools
Etxebeste , Mikel; Ortiz-de-Zarate, Gorka; ARRIETA, Iñaki Mirena; ARRAZOLA, PEDRO JOSE (Elsevier, 2025)Long milling tools are often limited in productivity due to chatter vibrations. Embedded Tuned Mass Dampers (TMDs) in these tools have proven to be an effective solution for reducing chatter and increasing productivity. ... -
Force Prediction Methodology for Complex Shape Broaching
Ortiz-de-Zarate, Gorka; Soler Mallol, Daniel; Soriano Moreno, Denis; Madariaga, Aitor; Etxebeste , Mikel; ARRAZOLA, PEDRO JOSE (Elsevier B.V., 2023)Broaching is widely used for the manufacturing of complex geometries which requires high dimensional accuracy and surface finishing (e.g., fir tree, dovetail). A software development for force prediction in complex shape ... -
In-SEM micro-machining reveals the origins of the size effect in the cutting energy
Ortiz-de-Zarate, Gorka; Sela, Andrés; ARRIETA, Iñaki Mirena; ARRAZOLA, PEDRO JOSE (Springer Nature, 2021)High-precision metal cutting is increasingly relevant in advanced applications. Such precision normally requires a cutting feed in the micron or even sub-micron dimension scale, which raises questions about applicability ... -
Inverse Identification of the Ductile Failure Law for Ti6Al4V Based on Orthogonal Cutting Experimental Outcomes
Sela, Andrés; Soler Mallol, Daniel; Ortiz-de-Zarate, Gorka; ARRAZOLA, PEDRO JOSE (MDPI, 2021)Despite the prevalence of machining, tools and cutting conditions are often chosen based on empirical databases, which are hard to be made, and they are only valid in the range of conditions tested to develop it. Predictive ... -
Measurement of plastic strain and plastic strain rate during orthogonal cutting for Ti-6Al-4V
Sela, Andrés; Ortiz-de-Zarate, Gorka; Soler Mallol, Daniel; Aristimuño, Patxi Xabier; ARRAZOLA, PEDRO JOSE (Elsevier Ltd., 2021)Finite Element Modelling used to predict machining outcomes needs to be supplied with the appropriate material thermomechanical properties which are obtained by specific testing devices and methodologies. However, these ... -
A mechanistic model to predict cutting force on orthogonal machining of Aluminum 7475-T7351 considering the edge radius
Ortiz-de-Zarate, Gorka; ARRIETA, Iñaki Mirena; Soriano Moreno, Denis; Aristimuño, Patxi Xabier; Medina-Clavijo, Bentejui; ARRAZOLA, PEDRO JOSE (Elsevier B.V., 2019)The ploughing force related with action of edge radius is an important factor which influences flow stress, chip formation or surface integrity. Some fraction of the cutting forces are called parasitic (additional) forces ... -
Methodology to establish a hybrid model for prediction of cutting forces and chip thickness in orthogonal cutting condition close to broaching
Ortiz-de-Zarate, Gorka; Sela, Andrés; Saez de Buruaga, Mikel; CUESTA ZABALAJAUREGUI, MIKEL; Madariaga, Aitor; Garay, Ainara; ARRAZOLA, PEDRO JOSE (Springer Nature, 2019)Broaching is a widely used finishing operation for the manufacturing of transmission gears which are commonly made of steel AISI 1045. Therefore, there is a high interest for industry to understand the metal cutting process ...
