Research on the Tendency of Inner Crack during 3-Roll Skew Rolling Process of Round Billets

• DOI: 10.4028/www.scientific.net/amr.145.238
• Publication Date: 2010-11-11T18:29:39Z
• Authors: Sheng Zhi Li; Wen Hua Meng; Lan Wei Hu; Bo Ding
• Keywords: Ligand cone angle

Concerning the 3-roll skew rolling process of round billets, a 3-D thermo-mechanical coupled simulation is performed with aid commercial FE code MSC.SuperForm. The influence feed angle and inlet cone roll on strain damage filed are investigated. It found that distribution pattern equivalent plastic in longitudinal section billet presents U-shape, make difference gradient deformation intensity radial direction billet. ring-shaped field transverse cross indicates high tendency for inner crack to occur, instead center appearing 2-roll results show critical parameters control during surface roll. should be avoided use too large angles so as reduce annular actual high-alloy steels poor hot workability.