The demand for properties and quality in extruded profiles stretches the ability of extruders and die makers to the limit: ever more complex sections, hard alloys, emerging technologies and microstructure control are just some of manufacturers’ every-day concerns. Key factors for innovation and competitiveness are skilled engineering analysis and reliable software; however, no reference community exists for the extrusion analyst and there is no common base for evaluating commercial code capabilities. This two-in-one event provides a unique opportunity: * to learn about the state of the art of emerging technologies, innovation and simulation capabilities in the extrusion of light alloys; * to get guidelines for best process analysis and product optimization; * to understand the potential of your current simulation tool; * to have the widest possible range of information on extrusion simulation today. WORKSHOP: "Latest Advances In Extrusion Technology and Simulation In Europe" The conference is focused on the latest advances in the extrusion of light alloys and related simulation issues. The workshop is open to researchers from industries and universities worldwide. Invited papers by leading industries will give the state of the art about ongoing research in extrusion technology. Invited papers will be presented on perspectives and ongoing research in extrusion technology and simulation. Contributions with experimental validation of the results will be preferentially selected for the oral session. Workshop Topics: * Process Simulation: Models, Validation, Optimization, Material Flow, Friction; * Product Quality: Defects, Distortions, Microstructure, Seam Welds, Maximum Press Speed; * Materials: Hard/New Alloys, Magnesium Alloys, Composites; * New Processes: Thixoextrusion, Hot Profile Bending, Reinforced Profiles Extrusion; * Dies: High Production Rates; Oriented Design, Die Life, Coatings, Correction Strategies. 2nd EXTRUSION BENCHMARK The benchmark is aimed at exploiting FEM codes capabilities and users' knowledge in the simulation of an industrial extrusion process which as it was realized and monitored by the conference organizers. The comparison of the "blind" simulations by the participants with the experimental results should allow users to check if their settings are generally adequate to the problem and software house to verify the sensitivity of their solving methods. If the previous benchmark held in Zurich was focused on the accuracy of simulating the contact between die and material in the bearings, in this case the attention was driven toward the simulation of pockets and their effectiveness in affecting the material flow. A multi-hole die with four L-shaped profiles was built and the effect of different pocket shapes on process behavior was evaluated. Finally, two different profile thickness have been chosen in order to evaluate the effect of profile thickness on pocket effectiveness. Participants are asked to simulate the extrusion of an industrial case (an especially designed multi-hole die for emphasizing process-related issues), on the base of die geometry, material properties, temperature of billet and die system, ram speed. The results will be compared to the experiments, as performed by the organizers, on the base of extruded length, profile temperature, profile distortions, press load.
L. Tomesani, L. Donati (2007). Latest Advances In Extrusion Technology and Simulation In Europe and 2nd Extrusion Benchmark.
Latest Advances In Extrusion Technology and Simulation In Europe and 2nd Extrusion Benchmark
TOMESANI, LUCA;DONATI, LORENZO
2007
Abstract
The demand for properties and quality in extruded profiles stretches the ability of extruders and die makers to the limit: ever more complex sections, hard alloys, emerging technologies and microstructure control are just some of manufacturers’ every-day concerns. Key factors for innovation and competitiveness are skilled engineering analysis and reliable software; however, no reference community exists for the extrusion analyst and there is no common base for evaluating commercial code capabilities. This two-in-one event provides a unique opportunity: * to learn about the state of the art of emerging technologies, innovation and simulation capabilities in the extrusion of light alloys; * to get guidelines for best process analysis and product optimization; * to understand the potential of your current simulation tool; * to have the widest possible range of information on extrusion simulation today. WORKSHOP: "Latest Advances In Extrusion Technology and Simulation In Europe" The conference is focused on the latest advances in the extrusion of light alloys and related simulation issues. The workshop is open to researchers from industries and universities worldwide. Invited papers by leading industries will give the state of the art about ongoing research in extrusion technology. Invited papers will be presented on perspectives and ongoing research in extrusion technology and simulation. Contributions with experimental validation of the results will be preferentially selected for the oral session. Workshop Topics: * Process Simulation: Models, Validation, Optimization, Material Flow, Friction; * Product Quality: Defects, Distortions, Microstructure, Seam Welds, Maximum Press Speed; * Materials: Hard/New Alloys, Magnesium Alloys, Composites; * New Processes: Thixoextrusion, Hot Profile Bending, Reinforced Profiles Extrusion; * Dies: High Production Rates; Oriented Design, Die Life, Coatings, Correction Strategies. 2nd EXTRUSION BENCHMARK The benchmark is aimed at exploiting FEM codes capabilities and users' knowledge in the simulation of an industrial extrusion process which as it was realized and monitored by the conference organizers. The comparison of the "blind" simulations by the participants with the experimental results should allow users to check if their settings are generally adequate to the problem and software house to verify the sensitivity of their solving methods. If the previous benchmark held in Zurich was focused on the accuracy of simulating the contact between die and material in the bearings, in this case the attention was driven toward the simulation of pockets and their effectiveness in affecting the material flow. A multi-hole die with four L-shaped profiles was built and the effect of different pocket shapes on process behavior was evaluated. Finally, two different profile thickness have been chosen in order to evaluate the effect of profile thickness on pocket effectiveness. Participants are asked to simulate the extrusion of an industrial case (an especially designed multi-hole die for emphasizing process-related issues), on the base of die geometry, material properties, temperature of billet and die system, ram speed. The results will be compared to the experiments, as performed by the organizers, on the base of extruded length, profile temperature, profile distortions, press load.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
