Effect of Edge Quality on Formability of an AA6xxx Aluminum Alloy

International Deep Drawing Research Group 37th Annual Conference

Cestoni, H.^1 ; Anderson, D.^1

Novelis, Inc., 1950 Vaughn Rd., Kennesaw

GA

30144, United States^1

关键词: Cut edge;    Edge cracking;    Edge quality;    Exposed to;    Laser cutting;    Manufacturing methods;    Tensile loading;    Tensile specimens;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/418/1/012065/pdf
DOI  :  10.1088/1757-899X/418/1/012065

来源: IOP

【 摘 要 】

Edge quality is an important driver of formability of stamped components, especially during stretch flange operations. During these operations the cut edge is directly exposed to primarily tensile loading; therefore, a poor quality edge can lead to significant reductions in formability due to edge cracking. Machining and laser cutting of sheared edges is a costly process. In the present work, the effect of edge quality on formability is investigated with an AA6xxx aluminum alloy. Tensile specimens prepared using various manufacturing methods are compared. Edges are analyzed to determine surface roughness and damage, and these metrics are compared to common tensile testing results to gauge the effect of edge quality on formability.