Experimental And Theoretical Determination Of Forming Limit Curve

Archives of Metallurgy and Materials

J. Adamus¹  K. Dyja¹  M. Motyka² 

[1] CZESTOCHOWA UNIVERSITY OF TECHNOLOGY, 69. DABROWSKIEGO STR., 42-201 CZESTOCHOWA, POLAND;RZESZOW UNIVERSITY OF TECHNOLOGY, 12 POWSTA?CÓW WARSZAWY AV., 35-959 RZESZOW, POLAND

关键词: Keywords: formability;    forming limit curve;    sheet;    stainless steel;   

DOI  :  10.1515/amm-2015-0321

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The paper presents a method for determining forming limit curves based on a combination of experiments with finite element analysis. In the experiment a set of 6 samples with different geometries underwent plastic deformation in stretch forming till the appearance of fracture. The heights of the stamped parts at fracture moment were measured. The sheet - metal forming process for each sample was numerically simulated using Finite Element Analysis (FEA). The values of the calculated plastic strains at the moment when the simulated cup reaches the height of the real cup at fracture initiation were marked on the FLC. FLCs for stainless steel sheets: ASM 5504, 5596 and 5599 have been determined. The resultant FLCs are then used in the numerical simulations of sheet - metal forming. A comparison between the strains in the numerically simulated drawn - parts and limit strains gives the information if the sheet - metal forming process was designed properly.

【 授权许可】

Unknown