FEM analysis to the slab corner metal flow condition during multi-pass V-H rolling process

Abstract

The multi-pass vertical-horizontal (V-H) rolling process using plain-barreled edging roll and two grooved edging rolls with inward chamfer radius R=50 mm and R=80 mm was modeled by way of explicit dynamic FEM and updated geometries, and the slab corner metal flow under the conditions as above was analyzed. With the specified rolling schedule, it was found that the slab corner metal is curling and overturning onto the slab top surface when using the plain-barreled edging roll, and the slab corner metal is kept onto the line intersecting the top surface with side surface of the slab when using grooved edging roll