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| Naji, M. |
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| Petrov, R. H. | Madrid |
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Sommitsch, Christof
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (71/71 displayed)
- 2024Engineering approach for determining the mechanical behavior of thin weldscitations
- 2024Experimental and Numerical Analysis of the Three-Point Bending Behavior of Hybrid Adhesive-Bonded Aluminum–Wood Platescitations
- 2024Engineering approach for modeling the deformation and fracture behavior of thin weldscitations
- 2023Influence of microstructure on degradation of cast graphitic high-speed steelcitations
- 2023Mechanical performance of hybrid joints of aluminum sheets and laminated beech veneer plates: an experimental prestudycitations
- 2023Critical verification of the effective diffusion conceptcitations
- 2023Effects of temperature on friction and degradation of dry film lubricants during sliding against aluminum alloy sheetscitations
- 2023Materials Characterization / Microstructural insights into creep of Ni-based alloy 617 at 700 °C provided by electron microscopy and modellingcitations
- 2023Influence of alloy composition and lubrication on the formability of Al-Mg-Si alloy blankscitations
- 2023Influence of natural aging on the formability of Al-Mg-Si alloy blankscitations
- 2023Fully additive manufacturing of PC/AlSi10Mg hybrid joints with surface structured substrate: a promissing approach for lightweight applications
- 2023Effect of Tensile Loading and Temperature on the Hydrogen Solubility of Steels at High Gas Pressurecitations
- 2022Modelling the hot deformation of a microalloyed steel
- 2022Enhanced gaseous hydrogen solubility in ferritic and martensitic steels at low temperaturescitations
- 2022Microstructurally Based Modeling of Creep Deformation and Damage in Martensitic Steelscitations
- 2022Influence of Plastic Deformation on the Hydrogen Embrittlement Susceptibility of Dual Phase Steelscitations
- 2022Riv-Bonding of Aluminum Alloys with High-Strength Steels against the Favorable Joining Directioncitations
- 2022Improving deep drawing simulations based on tribological investigations
- 2022Resistance of Quench and Partitioned Steels Against Hydrogen Embrittlementcitations
- 2022Influence of the Sheet Edge Condition on the Fracture Behavior of Riv-Bonded Aluminum-Magnesium Jointscitations
- 2022The role of hydrogen diffusion, trapping and desorption in dual phase steelscitations
- 2022Microstructure Characterization of Nickel Matrix Composite Reinforced with Tungsten Carbide Particles and Produced by Laser Claddingcitations
- 2022Local Heat Treatment for Springback Reduction in Deep Drawing of Advanced High-Strength Steelcitations
- 2022Thermomechanical and Microstructural Analysis of the Influence of B- and Ti-Content on the Hot Ductility Behavior of Microalloyed Steelscitations
- 2021Tribological investigations on aluminum alloys at different contact conditions for simulation of deep drawing processescitations
- 2021An In Situ Synchrotron Dilatometry and Atomistic Study of Martensite and Carbide Formation during Partitioning and Temperingcitations
- 2021Modeling of Hydrogen Diffusion in Slow Strain Rate (SSR) Testing of Notched Samplescitations
- 2021Mechanical Properties of Selective Laser-Melted Components of AlSi10Mg for Prototype Vehiclescitations
- 2021Numerical Simulation of Tube Bending Supported by Hydraulic Pressure for Manufacturing Butt-Welding Fittings
- 2021Reuse of Ti6Al4V Powder and Its Impact on Surface Tension, Melt Pool Behavior and Mechanical Properties of Additively Manufactured Componentscitations
- 2020Evaluation of Quenching and Partitioning C20MnSi Steel microstructure
- 2020Numerical simulation of hybrid joining processes: self-piercing riveting combined with adhesive bondingcitations
- 2020Hydrogen embrittlement (HE) of advanced high-strength steels (AHSS)
- 2020Mechanical properties and fracture modes of thin butt-joined aluminum-steel blanks for automotive applicationscitations
- 2020EUROMAT 2019 Symposia on Processing
- 2020Stability of a Melt Pool during 3D-Printing of an Unsupported Steel Component and Its Influence on Roughnesscitations
- 2020Modeling the Failure Behavior of Self-Piercing Riveting Joints of 6xxx Aluminum Alloycitations
- 2019Preparation Method of Spherical and Monocrystalline Aluminum Powdercitations
- 2019Effects of Er and Zr Additions on the As-Cast Microstructure and on the Solution-Heat-Treatment Response of Innovative Al-Si-Mg-Based Alloyscitations
- 2019Article Improving the Dimensional Stability and Mechanical Properties of AISI 316L + B Sinters by Si3N4 Additioncitations
- 2019Deformation Behavior of High-Strength Steel Rivets for Self-Piercing Riveting Applicationscitations
- 2019Microstructurally Based Modeling of Creep Deformation and Damage in Martensitic Steels
- 2019Improvement of hydrogen induced stress corrosion cracking resistance of ultra-high strength steel screws and fasteners
- 2019Strengthening mechanisms of Al wires processed by equal channel angular torsion drawingcitations
- 2019Thermomechanical Wear Testing of Metal Matrix Composite Cladding for Potential Application in Hot Rolling Millscitations
- 2019Influence of Melt-Pool Stability in 3D Printing of NdFeB Magnets on Density and Magnetic Propertiescitations
- 2019Thermo-mechanical Fatigue Behaviour of AlSi7Mg Alloy Processed by Selective Laser Melting
- 2018Characterization of localized corrosion of heat treated Er- and Zr-containing A356 alloys in 3.5 wt% NaCl aqueous solutioncitations
- 2017Pitting corrosion behaviour of stainless steel AISI 304 with different tinting colours
- 2016Additive Manufacturing via Cold Metal Transfer
- 2016Experimental investigations on single-sided CMT welding of hybrid aluminum-steel blanks
- 2016Evolution of the substructure of a novel 12% Cr steel under creep conditionscitations
- 2016Effect of Friction Stir Welding on Microstructure and Properties of Micro-TiO_2 doped HSLA Steel
- 2016Fracture analysis of a low pressure steam turbine bladecitations
- 2014Friction stir welding of aluminum metal matrix composite containers for electric componentscitations
- 2014Thermo-mechanische Simulation einer Pressstumpfschweißung von 26MnB5
- 2014Studies on ductile damage and flow instabilities during hot deformation of a multiphase γ-TiAl alloycitations
- 2014Modelling of the ductile damage behaviour of a beta solidifying gamma titanium aluminide alloy during hot-workingcitations
- 2014Advanced Microstructures for Increased Creep Rupture Strength of MARBN Steelscitations
- 2014Dissimilar Electron Beam Welding of Nickel Base Alloy 625 and 9% Cr Steelcitations
- 2014Modeling of two-phase grain structure in the titanium alloy TI-6AL-4V using cellular automatacitations
- 2014Investigations into the delayed fracture susceptibility of 34CrNiMo6 steel, and the opportunities for its application in ultra-high-strength bolts and fastenerscitations
- 2013Hot Deformation of AA6082 Containing Fine Intermetallic Particlescitations
- 2013FE modelling of microstructure evolution during friction stir spot welding in AA6082-T6citations
- 2013Modeling of dual-phase grain structure in Ti-6Al-4V during isothermal and non-isothermal heat treatment using cellular automata
- 2012Loss of Ductility Caused by AlN Precipitation in Hadfield Steelcitations
- 2012Numerical modelling and validation of precipitation kinetics in advanced creep resistant austenitic steel
- 2012Influence of temperature and strain rate on dynamic softening processes in AllvacR 718PlusTMcitations
- 2011Assessment of dynamic softening mechanisms in Allvac® 718Plus™ by EBSD analysiscitations
- 2008δ-phase characterization of superalloy Allvac 718 Plus™
- 2007Recrystallization behaviour of the nickel-based alloy 80 a during hot formingcitations
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article
Tribological investigations on aluminum alloys at different contact conditions for simulation of deep drawing processes
Abstract
The tribological condition occurring in aluminum sheet forming processes remarkably affects the part quality and the tool wear. Reliable finite element (FE) models which consider the actual contact conditions are required for successful simulation of aluminum sheet forming. Therefore, tribology experiments are vital for creating contact models which represent the actual tribological system between the tool and the blank. In this work, pin-on-plate tests using plates of aluminum alloys EN AW-5182 EN and AW-6016-T4 were performed at different nominal contact pressures, sliding velocities and surface temperatures for investigating the coefficient of friction (COF). The surface topographies of the aluminum plates, before and after the pin-on-plate tests, were investigated using an optical 3D surface profiler. The obtained COF as well as the surface topographies were imported into the TriboForm R3 software for generating a multi-factor friction model (MFFM), which was subsequently applied in deep drawing simulations using the AutoForm R8 software. The simulation results based on the MFFM were compared to the results based on friction models with constant COF. Moreover, the simulations were validated with deep drawing experiments using a cross-shaped tool at three blankholder forces. The results of the tribology experiments showed that the COF tended to decrease with increasing nominal contact pressure and sliding velocity. However, at elevated temperature the COF increased for both aluminum alloys. Observation of the surface topography after the pin-on-plate tests showed that the plastic deformation of the surface asperities increased with increasing nominal contact pressure. The simulation results based on the MFFM agreed well with the deep drawing experiments at each blankholder force in terms of forming forces, thickness variations and final geometries of the parts.<br/><br/><br/>