Determination of the Forming Limit Diagram of an Ultra-Thin Ferritic Stainless Steel Sheet

被引：2

作者：

Bong, Hyuk Jong ^{[1
]}

Barlat, Frederic ^{[1
]}

Lee, Myoung-Gyu ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Mat Mech Lab, Pohang 790784, Gyeongbuk, South Korea

来源：

8TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES (NUMISHEET 2011), PTS A AND B | 2011年 / 1383卷

关键词：

Forming limit diagram; modified Marciniak test; Nakazima test; ultra-thin ferritic stainless steel sheets; ALUMINUM SHEETS; FORMABILITY; METAL; CURVES; STRAIN; PLANE; FOILS;

D O I：

10.1063/1.3623690

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The forming limit diagram (FLD) of a 98 mu m-thick ferritic stainless steel sheet sample was determined using a modified Marciniak test and the conventional Nakazima test (ASTM E2218-2). Wrinkling and undesired fracture were not observed in the modified Marciniak test. However, for some strain paths, wrinkling of the sheet specimens and undesired fracture at the upper die radius and the draw bead locations occurred in the Nakazima test. In spite of the problems observed with the Nakazima test, similar FLDs were obtained with the two methods.

引用

页码：815 / 820

页数：6

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