Prediction of Minimum Bending Ratio of Aluminum Sheets From Tensile Material Properties

被引:11
作者
Iacono, C. [1 ]
Sinke, J. [2 ]
Benedictus, R. [2 ]
机构
[1] Mat Innovat Inst M2i, NL-2600 GA Delft, Netherlands
[2] Delft Univ Technol, Fac Aerosp Engn, NL-2600 GB Delft, Netherlands
来源
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME | 2010年 / 132卷 / 02期
关键词
minimum bending ratio; air bending; bendability; aluminum alloys; tensile properties; ALLOWANCE; BENDABILITY; SPRINGBACK; METALS; MODEL;
D O I
10.1115/1.4000960
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
One of the most widely involved operations in sheet metal forming processes in aircraft industry is bending, particularly, air bending as a simple process. For this reason, the bendability of aluminum alloys is an important material property, which determines the minimum radius to which a sheet may be bent without cracking. Hence, the challenging issue, on which this paper focuses, is to predict this material parameter from other material parameters commonly measured during standard tensile tests. For this prediction, a finite element model and a response surface model are elaborated and, as a result, a relatively simple formula is proposed to calculate the minimum bending radius from the reduction in the area at fracture, the strain hardening exponent, and the yield stress, which are material parameters available from tensile tests. [DOI: 10.1115/1.4000960]
引用
收藏
页码:0210011 / 0210019
页数:9
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