Listar Artikuluak-Ingeniaritza por autor "e4155e2a353360a3da9d82f3176896a8"
Mostrando ítems 1-20 de 21
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An automatic thermo-mechanical testing apparatus for metal forming applications
Agirre, Julen; Abedul Moreno, David; Sáenz de Argandoña, Eneko; Otegi, Nagore; GALDOS, Lander; Erice, Borja (Elsevier, 2023)Dynamic testing of materials is necessary to model high-speed forming processes (e.g. hammer forging, blanking, forming, etc.) and crash/impact behaviour of structures, amongst others. The most common machines to perform ... -
Comparison of the hardening behaviour of different steel families : from mild and stainless steel to advanced high strength steels
Silvestre Soriano, Elena; GALDOS, Lander; Sáenz de Argandoña, Eneko; Mendiguren, Joseba (Elsevier Ltd., 2015)Although steel has been used in vehicles from the automotive industry's inception, different steel gradesare continually being developed in order to satisfy new fuel economy requirements. For example,advanced high strength ... -
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 ... -
Drawbead uplift force analytical model for deep drawing operations
Gil, Imanol; GALDOS, Lander; Mendiguren, Joseba; Otegi, Nagore; Sáenz de Argandoña, Eneko (IOP Publishing Ltd., 2018)Drawbead uplift force calculation has been an open issue among the deep drawing tool maker and software developers in the last years. Starting from the original work of Stoughton (1988) many have been the models presented ... -
Experimental and Numerical Simulation Investigation on Deep Drawing Process of Inconel 718 with and without Intermediate Annealing Thermal Treatments
Ulibarri Hernández, Unai; GALDOS, Lander; Sáenz de Argandoña, Eneko; Mendiguren, Joseba (MDPI AG, 2020)The aeronautical industry is moving from high-capacity large-airplane construction to low-capacity small-airplane construction. With the change in the production volume, there is a need for more e cient manufacturing ... -
Hardening prediction of diverse materials using the Digital Image Correlation technique
Agirre, Julen; Mendiguren, Joseba; GALDOS, Lander; Sáenz de Argandoña, Eneko (Elsevier, 2018)In recent years, due to the introduction of higher resistance materials in the automotive sector, sheet metal-forming tool-makers have been forced to deal with more challenging process designs. Therefore, the optimisation ... -
The influence of the kinematic hardening on the FEM simulation of Tension Levelling Process
Garcia, Aitor; Trinidad Naranjo, Javier; Otegi, Nagore; Mendiguren, Joseba; Sáenz de Argandoña, Eneko; GALDOS, Lander (Elsevier Ltd., 2020)Tension levelling is used in the steel industry to remove shape defects present in cold rolled strip. This technology is increasingly being employed by steel makers to level AHSS steels, because conventional roll levelers ... -
Influence of the pressure dependent coefficient of friction on deep drawing springback predictions
Gil, Imanol; GALDOS, Lander; Mendiguren, Joseba; Sáenz de Argandoña, Eneko; Mugarra Fernandez, Endika (Elsevier Ltd., 2016)The aim of this work is to show the influence of defining a pressure dependent friction coefficient onnumerical springback predictions of a DX54D mild steel, a HSLA380 and a DP780 high strength steel. Thepressure dependent ... -
The Interaction between the Sheet/Tool Surface Texture and the Friction/Galling Behaviour on Aluminium Deep Drawing Operations
Zabala, Alaitz; GALDOS, Lander; Llavori, Inigo; Aginagalde, Andrea; Mendiguren, Joseba; Sáenz de Argandoña, Eneko (MDPI, 2021)The increasing demands for lightweight design in the transport industry have led to an extensive use of lightweight materials such as aluminium alloys. The forming of aluminium sheets however presents significant challenges ... -
New drawbead tester and numerical analysis of drawbeads closure force
Gil, Imanol; Mendiguren, Joseba; GALDOS, Lander; Mugarra Fernandez, Endika; Sáenz de Argandoña, Eneko (Springer, 2021)Currently, a great deal of controversy exists regarding the real forces generated in drawbeads during sheet metal forming processes. The present work focuses on the analysis of the uplift force. First, a detailed literature ... -
Numerical analysis of AISI 321 alloy material parameters on rubber pad diaphragm forming
Sanchez Barros, Pablo; Otegi, Nagore; GALDOS, Lander; Sáenz de Argandoña, Eneko (IOP Publishing, 2022)Rubber pad diaphragm forming is a technology that uses a rigid die in conjunction with a flexible polyurethane tool and fluid pressure action in order to shape metal sheets. In this process, the action of the fluid forms ... -
Numerical simulation of the roll levelling of third generation fortiform 1050 steel using a nonlinear combined hardening material model
GALDOS, Lander; Sáenz de Argandoña, Eneko; Mendiguren, Joseba; Silvestre Soriano, Elena (IOP Publishing Ltd, 2017)Elasto–plastic behavior of the third generation Fortiform 1050 steel has been analysed using cyclic tension–compression tests. At the same time, the pseudo elastic modulus evolution with plastic strain was analysed using ... -
Numerical simulation of U-Drawing test of Fortiform 1050 steel using different material models
GALDOS, Lander; Sáenz de Argandoña, Eneko; Mendiguren, Joseba; Mugarra Fernandez, Endika; Ulibarri Hernández, Unai (Elsevier Ltd., 2017)Steel has been used in vehicles from the automotive industry's inception. Different steel grades are continually being developed in order to satisfy new fuel economy requirements. For example, advanced high ... -
Numerical study of advanced friction modelling for sheet metal forming: influence of the die local roughness
Zabala, Alaitz; Sáenz de Argandoña, Eneko; Llavori, Inigo; Otegi, Nagore; Mendiguren, Joseba (Elsevier Ltd., 2022)Numerical simulation of sheet metal forming processes has become indispensable in the last decades. Although the complexity of the frictional behaviour is identified as a key factor for the prediction accuracy, the industry ... -
On the accurate characterization of the drawbead up-lift forces
Gil, Imanol; GALDOS, Lander; Otegi, Nagore; Mendiguren, Joseba; Sáenz de Argandoña, Eneko (IOP Publishing Ltd., 2018)The competitiveness of the automotive sector has led to a high demand of accuracy and reduction in lead-time of the deep drawing tool making process. In that regard, the numerical simulation of the deep drawing process has ... -
Press hardening of alternative materials: conventional high- strength steels
Mendiguren, Joseba; Herrero-Dorca, Nuria; GALDOS, Lander; Sáenz de Argandoña, Eneko (Springer Nature, 2017)he increase in strength of new high strength steels(HHS) and advanced high strength steels (AHHS) has led toforming issues, such as high springback, low formability, increase of forming forces and tool wear. These problems ... -
Soft sensing force measurement approach in sheet metal forming facilities
Olaizola, Jon; Iturrospe, Aitzol; Abete, J.M.; GALDOS, Lander; Sáenz de Argandoña, Eneko (IOP Publishing, 2020)Process stability and facility security are the two main purposes for measuring the force in sheet metal forming facilities. These two purposes look for guaranteeing the good health of the facility avoiding overloads and ... -
Study on the influence of the springback on the hole expansion ratio characterization
Zubia, Biotza; Mendiguren, Joseba; GALDOS, Lander; Sáenz de Argandoña, Eneko; Agirre, Julen (Whioce Publishing, 2018)Material formability has become one of the main problems, together with the springback, when stamping high added-value components for the automotive industry. The pursuit of weight reduction has led to higher strength ... -
Substitutive Press-Bolster and Press-Ram Models for the Virtual Estimation of Stamping-Tool Cambering
Abbasi, Farshad; Trinidad Naranjo, Javier; Otegi, Nagore; Sáenz de Argandoña, Eneko; GALDOS, Lander (MDPI, 2021)Today’s stamping simulations are realized by ignoring the elastic deformation of the press and tooling system through the assumption of a rigid behavior and a perfect press stroke. However, in reality, the press and tool ... -
Towards the automation of the die spotting process: Contact blue pattern decryption
Zabala, Alaitz; Llavori, Inigo; Sáenz de Argandoña, Eneko; Mendiguren, Joseba (Elsevier Ltd., 2020)Automotive die spotting is one of the most complex and least standardized processes in the tool making process. A spotting expert identifies local contact areas through a blue-paste pattern and the die/sheet contact is ...