Differences

This shows you the differences between two versions of the page.

--- applications:ale:roll-forming [2015/01/12 09:00] – canales
+++ applications:ale:roll-forming [2024/02/26 14:15] – boman
@@ Line 4: / Line 4: @@
 A metal strip is incrementally bent by sets of rolls (called “forming stands”) until the desired cross section is obtained.
 {{ :applications:ale:roll_forming01.png?600 |}}
+----
+{{ :applications:ale:roll_forming02.png?200|}}
+===== Symmetrical U-channel =====
+** Process parameters **
+  * Experimental mill (ArcelorMittal R&D, Montataire, France).
+  * 6 stands (15°, 32°, 50°, 68°, 80°, 90°).
+  * Final bending radii: 6 mm
+  * Inter-stand distance: 0.5 m
+  * Sheet: 2000 x 200 x 1.6 mm
+  * Sheet velocity: v = 200 mm/s {{ :applications:ale:roll_forming03.png?200|}}
+  * Coulomb friction $\mu$ = 0.2
+  * DP980 steel (sY0 = 697.34 MPa).
+** Numerical parameters **
+  * Symmetry.
+  * Friction drives the sheet.
+  * Two layers of EAS elements.
+  * Dynamic implicit scheme (Chung-Hulbert).
+\\ \\ ** Classical transient Lagrangian model **
+<WRAP centeralign column 100%>
+{{url>//www.youtube.com/embed/YFefQOfrAs4 560px,315px noborder fullscreen}}
+</WRAP>
+\\ \\ ** The proposed ALE model of continuous roll forming **
+<WRAP centeralign column 100%>
+{{url>//www.youtube.com/embed/2v0BybZ6RDU 560px,315px noborder fullscreen}}
+</WRAP>
+\\ \\ ** The proposed ALE model of continuous roll forming with post-cutting **
+<WRAP centeralign column 100%>
+{{url>https://www.youtube.com/embed/1rEJP7A6J6k?ecver=1 560px,315px noborder fullscreen}}
+</WRAP>
+----
+===== Rocker panel =====
+{{ :applications:ale:roll_forming04.png?650 |}}
+<WRAP group>
+<WRAP half column>
+** Process parameters **
+  * 16 stands – unsymmetrical shape.
+  * Material: DP980.
+  * Sheet: 6150 x 167 x 1.5 mm
+</WRAP>
+<WRAP half column>
+** Mesh **
+  * 2 FE through the thickness.
+  * FE length: from 3 mm to 15 mm
+  * 73 226 FE.
+</WRAP>
+</WRAP>
+<WRAP centeralign column 100%>
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/ErGFDPBwErk?rel=0" frameborder="0" allowfullscreen></iframe>
+</html>
+</WRAP>
+<WRAP centeralign column 100%>
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/GCJ45lAsiww?rel=0" frameborder="0" allowfullscreen></iframe>
+</html>
+</WRAP>
+\\ \\ ** ALE roll forming with welding and post-cutting **
+<WRAP centeralign column 100%>
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/S93UXLJjxYk?ecver=1" frameborder="0" allowfullscreen></iframe>
+</html>
+</WRAP>
+----
+===== Symmetrical C-channel =====
+\\ ** Classical transient Lagrangian model **
+<WRAP group>
+<WRAP half column>
+** Process parameters **
+  * 14 stands – symmetrical shape.
+  * Material: DP980.
+  * Sheet: 910 x 300 x 1.25 mm
+</WRAP>
+<WRAP half column>
+** Mesh **
+  * 2 FE through the thickness.
+  * FE length: 3 mm.
+  * 22 940 FE.
+</WRAP>
+</WRAP>
+<WRAP centeralign column 100%>
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/uz9UjHquEF4" frameborder="0" allowfullscreen></iframe>
+</html>
+</WRAP>
+\\ \\ ** The proposed ALE model of continuous roll forming **
+<WRAP group>
+<WRAP half column>
+** Process parameters **
+  * 14 stands – symmetrical shape.
+  * Material: DP980.
+  * Sheet: 4640 x 300 x 1.25 mm
+</WRAP>
+<WRAP half column>
+** Mesh **
+  * 2 FE through the thickness.
+  * FE length: from 3 mm to 15 mm
+  * 39 600 FE.
+</WRAP>
+</WRAP>
+<WRAP centeralign column 100%>
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/r50YtdWGqxA?rel=0" frameborder="0" allowfullscreen></iframe>
+</html>
+</WRAP>
+----
+===== Symmetrical tube =====
+<WRAP group>
+<WRAP half column>
+** Process parameters **
+  * 24 stands – symmetrical shape.
+  * Material: DP980.
+  * Sheet: 7770 x 159 x 1 mm
+</WRAP>
+<WRAP half column>
+** Mesh **
+  * 2 FE through the thickness.
+  * FE length: from 3 mm to 8 mm
+  * 68 640 FE.
+</WRAP>
+</WRAP>
+<WRAP centeralign column 100%>
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/KlCzLpHCa7o?ecver=1" frameborder="0" allowfullscreen></iframe>
+</html>
+</WRAP>