| 제목 |
보론강 핫 프레스 포밍 공정에 대한 가상생산 응용 및 검증 |
| 분야 |
생산기술 |
| 언어 |
Korean |
| 저자 |
서영성(한남대학교), 지민욱(한남대학교), 이경훈(솔루션랩), 김영석(경북대학교) |
| Key Words |
Hot press forming(핫 프레스 포밍),Virtual manufacturing(가상 생산), Boron steel(보론강), Material properties modeler(재료 물성 모델러), Elastic-plastic finite element analysis(탄소성 유한 요소 해석), Residual stress(잔류 응 |
| 초록 |
A virtual manufacturing system that is composed of JMatPro, a material modeler and DEFORMTM-HT, a finite element package is applied to the hot press forming process: high temperature material properties for each phase such as flow stress, elastic modulus, Poisson’s ratio, thermal expansion coefficient, in addition to TTT curve are predicted by JMatPro and taken into DEFORMTM-HT to predict the material behavior considering phase transformation and heat transfer simultaneously. In order to verify the accuracy of computation, the residual stress and the springback were compared with the experimental measurements. Both the predicted and measured principal residual stresses and amount of springback were in good agreement. It was also found that the residual stresses generated from hot press forming are not negligible as it has been generally assumed, although the springback deformation is quite small. |
| 원문(PDF) |
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