|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Comparison of Texture and Surface Finish Evolution during Single Point Incremental Forming and Formability Testing of AA 7075
||Maya Nath, Jaekwang Shin, Ankush Bansal, Mihaela Banu, Alan Taub
|On-Site Speaker (Planned)
Single Point Incremental Forming (SPIF) is an alternative method to conventional sheet forming processes, offering cost savings for small volume production as large presses and dies are not needed. In SPIF, a rigid tool moves along a pre-defined tool path, locally deforming the sheet until the final geometry is formed. We have been investigating optimizing process parameters, formability, mechanical properties and microstructure of incrementally formed parts. For this study, sheets of AA 7075-O were formed into funnels by SPIF and deep drawn cups. Specimens were sectioned and characterized at equivalent strains, but following different strain patterns associated with the two forming processes. This paper will report differences in microstructure, texture and surface finish for the two processes. Two finite element models were used to simulate SPIF of the funnel and deep drawing of the cup, respectively. The impact of the strain patterns on the texture evolution was validated through experiments.
||Planned: Light Metals