693.932 PEOPLE
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| Naji, M. |
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| Petrov, R. H. | Madrid |
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Fratini, Livan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (70/70 displayed)
- 2024Improving the Industrial Efficiency of Recycling Aluminum Alloy Chips Using Friction Stir Extrusion: Thin Wires Production Processcitations
- 2024Investigating the influence of deposition techniques and processing conditions on AA2024/SiC FSW joints: Evaluation of microstructural and mechanical propertiescitations
- 2023A new control parameter to predict micro‐warping‐induced job failure in LPBF of TI6AL4V titanium alloycitations
- 2023Development of polygon forming processes for aerospace engineering
- 2023Numerical analyses of the influence of a counter punch during deep drawing
- 2022Review on mechanical joining by plastic deformationcitations
- 2022The role of thermal contribution in the design of AA2024 friction stir welded butt and lap joints: mechanical properties and energy demandcitations
- 2022Mechanical and microstructural characterization of titanium gr.5 parts produced by different manufacturing routescitations
- 2021Comparative evaluation of the effect of the substrate thickness and inherent process defects on the static and fatigue performance of FSW and adhesive-bonded overlap-joints in an AA6016 alloycitations
- 2020Friction Stir Welding of Ti6Al4V complex geometries for aeronautical applications: a feasibility studycitations
- 2019Single block 3D numerical model for linear friction welding of titanium alloycitations
- 2019An insight into the electrical energy demand of friction stir welding processes: the role of process parameters, material and machine tool architecturecitations
- 2018Experimental and numerical investigation on a new FSW based metal to composite joining techniquecitations
- 2018Welding abilities of UFG metalscitations
- 2018In-process control strategies for friction stir welding of AZ31 sheets with non-uniform thicknesscitations
- 2017Linear friction welding of dissimilar AA6082 and AA2011 aluminum alloys: microstructural characterization and design guidelinescitations
- 2017In-process tool rotational speed variation with constant heat input in friction stir welding of AZ31 sheets with variable thicknesscitations
- 2017Strategies for numerical simulation of linear friction welding of metals: a reviewcitations
- 2017Influence of processing parameters and initial temper on Friction Stir Extrusion of 2050 aluminum alloycitations
- 2017Comparison between FSW and bonded lap joints - A preliminary investigationcitations
- 2017A numerical model for Wire integrity prediction in Friction Stir Extrusion of magnesium alloyscitations
- 2017Enhancement of mechanical properties of FSWed AA7075 lap joints through in-situ fabrication of MMCcitations
- 2016An Innovative Friction Stir Welding Based Technique to Produce Dissimilar Light Alloys to Thermoplastic Matrix Composite Jointscitations
- 2016In-process tool force and rotation variation to control sheet thickness change in friction stir welding of magnesium alloyscitations
- 2016Dissimilar titanium/aluminum friction stir welding lap joints by experiments and numerical simulationcitations
- 2015Experimental and Numerical Analysis of Microstructure Evolution during Linear Friction Welding of Ti6Al4Vcitations
- 2015Metallurgical evolutions in hot forging of dual phase titanium alloys: Numerical simulation and experimentscitations
- 2015Design of Numerical Simulations of Linear Friction Welding Processes: Issues and Difficultiescitations
- 2015Phase evolution in hot forging of dual phase titanium alloys: Experiments and numerical analysiscitations
- 2015Dissimilar Al/steel Friction stir welding lap joints for automotive applications
- 2015Shear coefficient determination in linear friction welding of aluminum alloyscitations
- 2015Friction stir welding of dissimilar aluminium– magnesium joints: Sheet mutual position effectscitations
- 2015Dual phase titanium alloy hot forging process design: experiments and numerical modelingcitations
- 2015On the Solid Bonding Phenomena in Linear Friction Welding and Accumulative Roll Bonding Processes: Numerical Simulation Insightscitations
- 2014Influence of geometrical ratios in forgeability of complex shapes during hot forging of Ti-6Al-4V titanium alloycitations
- 2014Analytical bonding criteria for joint integrity prediction in friction stir welding of aluminum alloys
- 2013Joining by plastic deformationcitations
- 2013Joining by plastic deformationcitations
- 2013An Automated Visual Inspection System for the Classification of the Phases of Ti-6Al-4V Titanium Alloycitations
- 2013On the linear friction welding process of aluminum alloys: Experimental insights through process monitoringcitations
- 2013Friction stir welding of stainless steel thin sheets in lap configuration
- 2013On the field variables influence on bonding phenomena during FSW processes: experimental and numerical studycitations
- 2013Advanced FEM Modeling of Friction Stir Welding of Ti6Al4V: Microstructural Evolutions
- 2013Application of a rheological Model for Phase Transformation Prediction in Beta Processing of Titanium Alloys
- 2012Numerical prediction of Biphasic Titanium Alloys Microstructure in Hot Forging Operations.
- 2012On The Friction Stir Welding of Titanium Alloys: Experimental Measurements and FEM Model Fine Tuning
- 2011Numerical simulation of linear fiction welding (LFW) processescitations
- 2011Computer Aided Design of an Effective Fixture for FSW Processes of Titanium Alloys
- 2011Fatigue strength of a single lap joint SPR-bondedcitations
- 2010Mechanical and metallurgical effects of in process cooling during friction stir welding of AA7075-T6 butt jointscitations
- 2010Analysis of Joint Quality along Welding Planecitations
- 2010On the Self-Piercing Riveting of Aluminium blanks and Carbon Fibre Composite Panelscitations
- 2010Developing tele-operated laboratories for manufacturing engineering educationcitations
- 2009Mode I failure modeling of friction stir welding jointscitations
- 2009Influence of material characteristics on plastomechanics of the fsw process for T-jointscitations
- 2008On the influence of tool path in friction stir spot welding of aluminum alloyscitations
- 2007New Materials Design Through Friction Stir Processing Techniques
- 2007Experimental characterization of FSW T-joints of light alloyscitations
- 2007Investigations on the Mechanical Properties and Formability of Friction Stir Welded Tailored Blankscitations
- 2007Electrochemical Analysis on Friction Stir Welded and Laser Welded 6XXX Aluminium Alloys T-Jointscitations
- 2007Friction Stir Spot Welding of AA6082-T6: influence of the most relevant process parameters and comparison with classic mechanical fastening techniquescitations
- 2007The Relevance Of The Preform Design In Coining Processes Of Cupronickel Alloycitations
- 2007CDRX modelling in friction stir welding of AA7075-T6 aluminum alloy: analytical approachescitations
- 2006Incremental Forming of Friction Stir Welded Taylored Sheetscitations
- 2006Springback effect evaluation in three-dimensional stamping processes at the varying of blankholder forcecitations
- 2006On microstructural phenomena occurring in friction stir welding of aluminium alloyscitations
- 2006Design Of Experiments for the optimization the process parameters of thixotropic aluminum alloy
- 2005Microstructural Changes Determining Joint Strength in Friction Stir Welding of Aluminium Alloyscitations
- 2005CDRX modelling in friction stir welding of aluminium alloyscitations
- 2004Damage and fracture study of cold extrusion diescitations
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document
Welding abilities of UFG metals
Abstract
Ultrafine Grained (UFG) metals are characterized by an average grain size of <1 μm and mostly high angle grain boundaries. These materials exhibit exceptional improvements in strength, superplastic behaviour and in some cases enhanced biocompatibility. UFG metals barstock can be fabricated effectively by means of Severe Plastic Deformation (SPD) methods. However, the obtained welded joints with similar properties to the base of UFG material are crucial for the production of finished engineering components. Conventional welding methods based on local melting of the joined edges cannot be used due to the UFG microstructure degradation caused by the heat occurrence in the heat affected zone. Therefore, the possibility of obtaining UFG materials joints with different shearing plane (SP) positions by means of friction welded processes, which do not exceed the melting temperature during the process, should be investigated. The article focuses on the Linear Friction Welding (LFW) method, which belongs to innovative welding processes based on mixing of the friction-heated material in the solid state. LFW is a welding process used to joint bulk components. In the process, the friction forces work due to the high frequency oscillation and the pressure between the specimens is converted in thermal energy. Character and range of recrystallization can be controlled by changing LFW parameters. Experimental study on the welded UFG 1070 aluminum alloy by means of FLW method, indicates the possibility of reducing the UFG structure degradation in the obtained joint. A laboratory designed LFW machine has been used to weld the specimens with different contact pressure and oscillation frequency.