Application of Partial-size Die forming Process to Semiellpisoidal Segment Head of the Pressure Vessel

압력 용기 반타원형 분할 경판의 제작에 있어서 부분 금형 성형 공정의 적용

The purpose of this study is to apply the partial-size die forming process to actual segment head farming process of semi-ellipsoidal heads and to verify the availability of the suggested forming method. The initial curvature for the preliminary forming process was determined through anticlastic behavior of plate bending and the partial-size die for final forming was designed based on the results of springback analysis using F.EA. From the results of actual forming, it was concluded that die design was appropriate and proposed forming process would be successfully applied to actual forming jobs.