ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In the H-beam rolling process, the deformations and temperature field of workpiecesignificantly influence the mechanical properties due to the change of product microstructure.Prediction of them is important for the groove design and passes sequences. To get the deformationbehavior and the temperature field of workpiece, commercial FEM program LS-DYNA has beenused to analyze the whole process of H-beam rolling. The approach is based on 3D thermalmechanical coupled finite element method. The rolling process is divided into several units forcalculation. The mesh of workpiece is rebuilt in the simulation for reducing the influence of elementdistortion. The result shows that, the temperature at the wed to flange position maintains the highestduring the whole rolling process, while area of the web the lowest. After the rolling, temperaturedifference is above 150K between the web’s surface and flange’s inside surface, approximate 130Kon the flange’s outside surface and 200K in the cross section. The simulation results show goodagreement with the measured temperature data
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.532.pdf
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