20th International Forgemasters Meeting - IFM 2017

Taewoong utilized continuous cast facility consists of EAF(Electric Arc Furnace), LF(Ladle Furnace), VD(Vacuum Degassing), VOD(Vacuum Oxygen Decarburization) and CC(Continuous Casting) to manufacture Ø1,000 grade large diameter round bloom. Characteristics of utilized facility were analyzed and relationship between casting process parameters and casting defects were derived. Hot forging process design was performed to fabricate sound products with manufactured round bloom. Major working factors deeply related to defect in forging process were derived and improvement activities were carried out by finite element analysis and experimental analysis. With the results, sound forged parts were formed. Improvement of competitiveness was analyzed in the viewpoint of processing cost. Utilization of continuous cast facility and optimization of forging process increase raw material utilization ratio and decrease amount of energy use. The results show utilized continuous cast facility gives opportunity to be a world competitive company.