scholarly journals New method to analyze the throughput-pressure behavior with the corrected twin screw channel geometry and the induced drag flow of screw elements by using 3D FEM simulation

2019 ◽  
Author(s):  
Frederik Sporkmann ◽  
Volker Schöppner
Keyword(s):  
Fem Simulation ◽  
New Method ◽  
3D Fem ◽  
Channel Geometry ◽  
Screw Channel ◽  
Pressure Behavior ◽  
Induced Drag ◽  
Twin Screw

scholarly journals 3D-FEM Simulation of Hot Rolling Process and Characterization of the Resultant Microstructure of a Light-Weight Mn Steel

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 569
Author(s):  
Ana Claudia González-Castillo ◽  
José de Jesús Cruz-Rivera ◽  
Mitsuo Osvaldo Ramos-Azpeitia ◽  
Pedro Garnica-González ◽  
Carlos Gamaliel Garay-Reyes ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Thermomechanical Processing ◽  
Computational Simulation ◽  
Effective Strain ◽  
Fem Simulation ◽  
Rolling Process ◽  
3D Fem ◽  
Hot Rolling Process ◽  
Mn Steel

Computational simulation has become more important in the design of thermomechanical processing since it allows the optimization of associated parameters such as temperature, stresses, strains and phase transformations. This work presents the results of the three-dimensional Finite Element Method (FEM) simulation of the hot rolling process of a medium Mn steel using DEFORM-3D software. Temperature and effective strain distribution in the surface and center of the sheet were analyzed for different rolling passes; also the change in damage factor was evaluated. According to the hot rolling simulation results, experimental hot rolling parameters were established in order to obtain the desired microstructure avoiding the presence of ferrite precipitation during the process. The microstructural characterization of the hot rolled steel was carried out using optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). It was found that the phases present in the steel after hot rolling are austenite and α′-martensite. Additionally, to understand the mechanical behavior, tensile tests were performed and concluded that this new steel can be catalogued in the third automotive generation.

3D-FEM simulation model of the Earth-ionosphere cavity

2019 ◽  
Vol 33 (6) ◽  
pp. 734-742 ◽  
Author(s):  
E. S. Goncharov ◽  
A. N. Lyakhov ◽  
T. V. Loseva
Keyword(s):  
Simulation Model ◽  
Fem Simulation ◽  
3D Fem ◽  
The Earth

Seam Welds Modeling and Mechanical Properties Prediction in the Extrusion of AA6082 Alloy

2008 ◽  
Vol 367 ◽  
pp. 125-136 ◽  
Author(s):  
Lorenzo Donati ◽  
Luca Tomesani
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
Fem Simulation ◽  
Die Design ◽  
Welding Parameters ◽  
Middle Section ◽  
3D Fem ◽  
Strain And Strain Rate ◽  
Mechanical Properties Prediction ◽  
Temperature Time

This work summarizes the outcome of recent research by the authors on modeling the formation of seam welds in aluminum extrusion and on evaluating the related mechanical properties on the final products. A profile with a seam weld in the middle section was produced with different die designs in order to investigate the relation between die design and local welding parameters, such as contact pressure, temperature, time of contact, strain and strain rate paths. The local welding conditions were evaluated by complete thermo-mechanical 3D FEM simulation of the processes. Specimens were extracted from the profiles and tensile tested, the resulting mechanical properties being discussed with respect to the local welding conditions. The possibility to adopt criteria for assessing the welding quality is discussed, together with the effect of high speed damage cracking.

3D FEM simulation of the turning process of stainless steel 17-4PH with differently texturized cutting tools

2019 ◽  
Vol 155 ◽  
pp. 417-429 ◽  
Author(s):  
Guoliang Liu ◽  
Chuanzhen Huang ◽  
Rui Su ◽  
Tuğrul Özel ◽  
Yue Liu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Cutting Tools ◽  
Fem Simulation ◽  
Turning Process ◽  
3D Fem
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