Listar Ikerketa-Artikuluak por autor "7c8971ea8f9dc0587ce0902f1f67aaca"
Mostrando ítems 1-13 de 13
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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 ... -
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 ... -
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 ... -
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 ... -
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) -
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 ... -
A novel methodology to characterize tool-chip contact in metal cutting using partially restricted contact length tools
Ortiz-de-Zarate, Gorka; Madariaga, Aitor; ARRAZOLA, PEDRO JOSE (2021)A novel methodology to map the friction and normal stress distribution on the rake face using Partially Restricted Contact Length Tools in orthogonal cutting tests is proposed. The influence of cutting speed, feed and ... -
Sensitivity analysis of the input parameters of a physical based ductile failure model of Ti-6Al-4V for the prediction of surface integrity
Ortiz-de-Zarate, Gorka; Sela, Andrés; Madariaga, Aitor; ARRAZOLA, PEDRO JOSE (Elsevier Ltd, 2020)In machining of Ti-6Al-4V, it is commonly reported the appearance of segmented chip produced by adiabatic shearing (at high cutting speeds) and lack of ductility (at low cutting speeds). Moreover, machining is a manufacturing ... -
Surface drag analysis after Ti-6Al-4V orthogonal cutting using grid distortion
Sela, Andrés; Ortiz-de-Zarate, Gorka; Soler Mallol, Daniel; Aristimuño, Patxi Xabier; Soriano Moreno, Denis; ARRAZOLA, PEDRO JOSE (Elsevier Ltd, 2020)Surface integrity directly affects the mechanical behavior of the workpiece, which is especially relevant on fatigue behavior. To characterize the quality of the machined surface, aspects such as material damage, roughness ... -
Surface topography irregularities generated by broaching
Ortiz-de-Zarate, Gorka; Madariaga, Aitor; ARRAZOLA, PEDRO JOSE (Elsevier Ltd., 2022)Surface topography irregularities generated by broaching are analysed. Experimental tests were carried out on three workpiece materials: AISI 1045, Ti-6Al-4V, and Inconel 718, varying the cutting speed, rise per tooth, and ...