期刊
MATERIALS TODAY-PROCEEDINGS
卷 2, 期 4-5, 页码 2037-2045出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matpr.2015.07.174
关键词
Anisotropy properties; Forming limit diagram; Strain distribution; Limiting dome height
The tensileanisotropy properties of Inconel-718 sheet metal were evaluated and the forming limit diagram (FLD) was established experimentally by deforming the material in different strain paths covering from tension-tension to tension-compression mode. Finite element model of the stretch forming process was developed successfully to predict limiting dome height (LDH) and strain distribution incorporating the Barlat-89 yield criterion and experimental FLD. It was found that the left side of FLD has higher forming limitscompared to right side. The IN-718 has encouraging stretch formability with uniform strain distribution in the cup compared to Ti6Al4V alloy reported in previous literature. (C) 2015 Elsevier Ltd. All rights reserved.
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