- 소재의 탄성회복과 금형의 탄성변형을 고려한 냉간단조품의 치수 예측
- ㆍ 저자명
- 전병윤,강상명,박재민,이민철,박래훈,전만수,Jun. B. Y.,Kang. S. M.,Park. J.M.,Lee. M. C.,Park. R. H.,Joun. M. S.
- ㆍ 간행물명
- 소성가공
- ㆍ 권/호정보
- 2005년|14권 5호|pp.423-431 (9 pages)
- ㆍ 발행정보
- 한국소성가공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this paper, a systematic attempt for estimating geometric dimensions of cold forgings is made by finite element method and a practical approach is presented. In the approach, the forging process is simulated by a rigid-plastic finite element method under the assumption that the die is rigid. With the information obtained from the forging simulation, die structural analysis and springback analysis of the material are carried out. In the springback analysis, both mechanical load and thermal load are considered. The mechanical load is applied by unloading the forming load elastically and the thermal load is by cooling the increased temperature due to the plastic work to the room temperature. All the results are added to predict the final dimensions of the cold forged product. The predicted dimensions are compared with the experiments. The comparison has revealed that predicted results are acceptable in the application sense.