|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Effect of Tooling Size and Geometry on the Determination of Forming Limit Curves for an Aluminum Alloy
||Randall Bowers, Xiyu Wen, Shridas Ningileri
|On-Site Speaker (Planned)
With the increase in demand for automotive aluminum and the importance of qualification of supplied sheets in the stamping process, the requirements for producing compatible forming limit curves for deformation studies increases as the amount of suppliers and their methods of testing increases. The need to understand the role of the punch size and geometry in addition to lubrication conditions on the resulting forming limit curve becomes important. In this study, a comparison is made between the effects of tooling size using a hemispherical punch geometry on the generation of the FLC for an aluminum alloy. Additionally, a comparison between the Nakajima and Marciniak tooling of the same diameters is made to compare the effects of a well lubricated domed condition against the non-contact flat sheet deformation geometry on the FLC. FLC generation is done using a digital image correlation system with the analysis methods outlined in ISO 12004-2:2008.
||Planned: Light Metals