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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Formability and Spring-back Issues in Ultra-high Strength Steels and High Strength Aluminum Alloys
Presentation Title A Investigation of the Bendability of Friction-stir Processed Aluminum 7075 & 6111 Alloys and Its Effect on Formability
Author(s) Shivakant Shukla, Kranthi Balusu, Hrishikesh Das, Ayoub Soulami, Piyush Upadhyay
On-Site Speaker (Planned) Shivakant Shukla
Abstract Scope Local microstructure modification using friction stir processing (FSP) is intended to improve formability. However, the improvement of formability is local. It is realized only in specific types of loading, and the reason needs to be better understood through the investigation of the heterogeneous microstructure’s local properties. Formability is a function of local properties like yield stresses, strain hardening, and ductility, which vary across the three regions of FSPed components. In addition, ductility depends on stress triaxiality too. This study measured yield stress variation through indentation. The other properties were determined by calibrating the material properties in the simulation model to selected bending and tensile tests. Finally, the validity of the distribution of local properties was proven by comparing a limiting dome height forming test with its simulation. This progress made in this work will allow optimizing the FSP paths and achieving superior formability for a wide variety of components.
Proceedings Inclusion? Planned:
Keywords Aluminum, Modeling and Simulation, Mechanical Properties


A Investigation of the Bendability of Friction-stir Processed Aluminum 7075 & 6111 Alloys and Its Effect on Formability
Anisotropic Fracture of Mild and Advanced High Strength Steel in Non-linear Strain Paths
Dimensional Control in Flexible Fabrication of Sheet Metals for Automotive Applications
Hot Stamping of Third Generation Advanced High Strength Steels
Hybrid Bead Development and Validation; Auto Steel Partnership
Influence of Yoshida-Uemori Model on Springback Prediction
Microstructure and Mechanical Properties According to Heat Treatment of High Tensile Strength Steel Alloy
On Local Formability of Multi-phase Ultra-high-strength Steels
Retrogression Forming and Reaging for Forming and Joining AA7075-T6 Sheet
Roller Bending/Unbending Process for Improving the Local Mechanical Properties of Aluminum Sheets
The “Next Era in Stamping Technology” (NEST), The Fundamentals of a Hybrid Stamping Technology

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