Influence of Macro-Structured Tools on the Formability of Aluminum Alloys in the Cryogenic Temperature Range
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Aluminum materials are popular materials for research in terms of lightweight construction. How cryogenic forming can be used to increase material utilization in terms of resource efficiency is one of the areas being investigated. Subject of this study are numerical and experimental investigations regarding the formability of the aluminum alloy AA6014-T4 with macro-structured deep drawing tools at cryogenic temperatures. The macro-structure of the deep drawing dies significantly reduces the heat flux between the dies and the blank due to the reduced contact area. For this reason, active cooling or heating of the dies is not required. The process of heat conduction between the tool and the blank, as well as the deep drawing process, is calculated using the FE-method and compared with the experimental investigations. In addition, the induced residual stresses are determined using the hole-drilling method and compared with the computational solution. The presented examination shows an improved deep drawing ratio of the aluminum alloy AA6014-T4 at cryogenic blank temperature without active tool cooling. Additionally, the influence of the blank temperature on the forming regarding the residual stresses in the cups is analyzed and discussed.
Details
Original language | English |
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Pages (from-to) | 760-767 |
Number of pages | 8 |
Journal | Key Engineering Materials |
Volume | 926 |
Publication status | Published - 2022 |
Peer-reviewed | Yes |
Conference
Title | 25th International ESAFORM Conference on Material Forming |
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Abbreviated title | ESAFORM 2022 |
Conference number | 25 |
Duration | 27 - 29 April 2022 |
Website | |
Degree of recognition | International event |
Location | Altice Forum Braga |
City | Braga |
Country | Portugal |
External IDs
Scopus | 85140490067 |
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ORCID | /0000-0002-1319-9261/work/148145055 |
ORCID | /0000-0002-1043-7746/work/148146108 |
ORCID | /0000-0001-9798-8358/work/148146116 |