블랭크 홀딩력 조절을 통한 성형성 향상에 관한 수치적 연구
A Numerical Study on formability improvement by adjusting blank holding force
2
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
In sheet metal forming process, drawing is typical process. And the key factor of drawing is blank holding force (BHF) A low BHF can cause wrinkling, whereas a high BHF can cause fracture during a deep drawing process. Thus, formability can be influenced by application appropriate BHF. In this study, a variable blank holding force (VBHF) is applied to extend the forming limit by avoiding both wrinkling and fracture. To determine VBHF in drawing process, numerical simulations and statistical analysis are carried out using commercial FEM software.
Abstract
In sheet metal forming process, drawing is typical process. And the key factor of drawing is blank holding force (BHF) A low BHF can cause wrinkling, whereas a high BHF can cause fracture during a deep drawing process. Thus, formability can be influenced by application appropriate BHF. In this study, a variable blank holding force (VBHF) is applied to extend the forming limit by avoiding both wrinkling and fracture. To determine VBHF in drawing process, numerical simulations and statistical analysis are carried out using commercial FEM software.
참고문헌 (4)
- E. Doege, "Optimization of the blank -holder force during deep drawing of rectangular parts", Stahl und Eisen, 103(3), pp.139~142
- S. Kitayama, "A closed-loop type algorithm for determination of variable blank holder force trajectory and its application to square cup deep drawing", Int. J. Adv. Manuf. Technol., 51, pp.507~571 (2010)
- L. Wang, "Controlled strain path forming process with space variant blank holder force using RSM method", J. Mater. Process Technol., 167, pp.447~455 (2005)
- E. H. Jang, "A Numerical Study on Determination of Optimization Forming Conditions by Servo-Press", ~ (2013)