Download Advances on hot extrusion and simulation of light alloys : by A Erman Tekkaya; Nooman Ben Khalifa PDF
By A Erman Tekkaya; Nooman Ben Khalifa
Read Online or Download Advances on hot extrusion and simulation of light alloys : selected, peer reviewed papers from the International Conference on Extrusion and Benchmark (ICEB), Dortmund 2009, Germany, September 16.-17. 2009 PDF
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Additional resources for Advances on hot extrusion and simulation of light alloys : selected, peer reviewed papers from the International Conference on Extrusion and Benchmark (ICEB), Dortmund 2009, Germany, September 16.-17. 2009
The profile temperature was continuously measured through a pyrometer only on the upper profile. The used pyrometer works with two different wavelengths so as to calculate the work piece temperature impartially from the surface property. The detection point was located 145 mm away from the die surface as reported in fig. 5. Finally, two laser velocitymeters were used in order to continuous monitoring the profile speed of both profiles. The velocitymeters work contactless with lasers beams based on the Doppler principle.
The simulation results are finally compared with some experimental results. Introduction Extruded aluminum profiles with low density and high ductility are widely used in the automobile and aircraft industry. The structural behavior of extruded profiles can be optimized with help of functionally-graded material (FGM) properties according to the design requirements of the final product. In other words, the microstructure properties of such profiles are locally varied so that the desired material behavior for different parts of the profile is achieved.
Randjelovic3, d and C. at Keywords: AA6082, hot extrusion, FEM, microstructure modelling, dislocation density evolution, nucleation Abstract. Process parameters in aluminium extrusion technology are key points that influence product properties. The precipitation hardening aluminium alloy 6082 is investigated according to different process conditions and the influence onto the final microstructure is simulated as well as experimentally verified. A physical microstructure model based on three dislocation types and three nucleation sites for recrystallization is implemented into the commercial Finite Element package FORGE 2008 to calculate both the microstructure evolution during the extrusion process as well as the recrystallized fraction after the process.