RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

Nowadays, the trend to a lightweight design accelerates the use of advanced high strength steel (AHSS) in automotive industry. Springback phenomena is a hot issue in the sheet metal forming, especially bending process using AHSS. Several analytical methods for that have been proposed in recent years. Each of method has their advantages and disadvantages. There are only a few optimal solutions which can minimize the two objectives simultaneously. In this study, an effective method optimized the multi objective value. The method by the design of experiments(DOE) and artificial neural network(ANN) was presented to compensate springback of bending parts. This method was applied to L and V bending process. The effective method could be optimized to multiple object. It was confirmed that the proposed method was more efficient than traditional manual FEA procedure and the trial and error approach for springback compensation.

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목차 (Table of Contents)

Abstract
1. 서론
2. 최적화 방법
3. 초기공정 조건설정
4. L형 굽힘공정 최적화

Abstract
1. 서론
2. 최적화 방법
3. 초기공정 조건설정
4. L형 굽힘공정 최적화
5. V형 굽힘공정 최적화
6. 최적화 기법적용에 대한 고찰
7. 결론
후기
참고문헌

참고문헌 (Reference)

1 Leu, D. K., "The Influence of Coining Forces on Spring-Back Reduction in V-Die Bending Process" 196 : 230-235, 2008

2 Liu, W., "Springback Prediction for Sheet Metal Forming Based on GA-ANN Technology" 187 : 227-231, 2007

3 Kim, B. M., "Springback Prediction and Optimization for AHSS in Seat Rial Forming Process Using DOE and ANN" 2008

4 Sousa, L. C., "Optimal Design of V and U Bending Processes Using Genetic Algorithms" 172 : 35-41, 2006

5 Marciniak, Z., "Mechanics of Sheet Metal Forming" 82-87, 2002

6 Liu, G., "Improving Dimensional Accuracy of a U-Shaped Part Through an Orthogonal Design Experiment" 39 : 107-118, 2002

7 고대철, "DP780 초고장력 강판을 이용한 자동차용 시트레일의 성형공정 설계" 한국소성가공학회 17 (17): 197-202, 2008

8 Ho, H. I., "A Study on the Sheet Bending by the Plastic Deformation of Flange" 21 (21): 1050-1057, 1997

9 Gan, W., ""Die Design Method for Sheet Springback" 46 : 1097-1113, 2004