마그네슘 합금 AZ31 판재의 온간 사각컵 디프드로잉 공정의 유한요소 해석Finite-Element Analysis of Warm Square Cup Deep Drawing Process of Magnesium Alloy AZ31 Sheet
- Other Titles
- Finite-Element Analysis of Warm Square Cup Deep Drawing Process of Magnesium Alloy AZ31 Sheet
- Authors
- 김흥규; 한병기; 이위로; 홍석관; 김종덕
- Issue Date
- 2006
- Publisher
- 한국소성가공학회
- Keywords
- Magnesium Alloy; Press Forming; Square Cup Deep Drawing; AZ31; Damage; Finite Element Analysis; Magnesium Alloy; Press Forming; Square Cup Deep Drawing; AZ31; Damage; Finite Element Analysis
- Citation
- 소성가공, v.15, no.3, pp.232 - 240
- Journal Title
- 소성가공
- Volume
- 15
- Number
- 3
- Start Page
- 232
- End Page
- 240
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/24918
- ISSN
- 1225-696X
- Abstract
- Magnesium alloys are expected to be widely used for the parts of structural and electronic appliances due to their lightweight and EMI shielding characteristics. While the die casting has been mainly used to manufacture the parts from the magnesium alloys, the press forming is considered as an alternative to the die casting for saving the manufacturing cost and improving the structural strength of the magnesium alloy parts. However, the magnesium alloy has low formability at room temperature and therefore, in many cases, forming at elevated temperatures is necessary to obtain the required material flow without failure. In the present study, square cup deep drawing tests using the magnesium alloy AZ31 sheet were experimentally conducted at various elevated temperatures as well as room temperature, and the corresponding finite-element simulations, which calculated the damage evolution based on the Oyanes criterion, were conducted using the stress-strain relations from the tensile tests at various temperatures. The formability predictability by the finite-element analysis was investigated by comparing the predicted damage distributions over the deformed AZ31 sheet at elevated temperatures with the corresponding experimental deformations with failures.
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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