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Meeting MS&T22: Materials Science & Technology
Symposium Advanced Joining Technologies for Automotive Lightweight Structures
Presentation Title Additive Friction Stir Deposition for Cladding and Repair of Lightweight Aluminum
Author(s) Greg Hahn, Hang Yu
On-Site Speaker (Planned) Greg Hahn
Abstract Scope Additive friction stir deposition is a novel solid-state metal additive manufacturing process that enables the cladding and repair of lightweight aluminum structures with low energy, low cost, and low residual stresses. Based on repaid plastic deformation at elevated temperatures, the deposited material and base material are co-plastically deformed and mixed, resulting in strong bonding with a gradient interface. In this presentation, we show examples of dissimilar material cladding on 6xxx aluminum automotive sheet metals as well as structural repair of high strength 7xxx aluminum. Excellent post-cladding and post-repair mechanical performance are achieved, in which good interface quality plays a key role. We also explore the effects of thermo-mechanical processing on the temper and microstructure of the base material, which helps us advance our modeling efforts to better predict the static and fatigue performance of the resulting aluminum structures.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Process Modeling of Linear Friction Welding Using a Smoothed Particle Hydrodynamics Based Approach
A Novel Approach to Determine Intermetallic Formation and Growth in the Aluminum-Iron System Using Resistance-based Diffusion Couples
Additive Friction Stir Deposition for Cladding and Repair of Lightweight Aluminum
Development of Solid-state Resistance Spot Joining Method
Dissimilar Materials Welding between AA6061 and CFRP Utilizing Vaporizing Foil Actuator Welding
Effect of Processing Parameters on the Mechanical Performance of High Velocity Riveted (HVR) Joints through Finite Element Modeling
Fatigue Analyses of Dissimilar Aluminum-Steel Clinch Joints for Lightweight Construction
Friction Stir Lap Welding of 3T Al Sheets in a Robotic Platform
Influence of Process Parameters on Joint Formation and Load-bearing Capacity for a Versatile Self-piercing Riveting Process
Integrating an Interlayer Technology Approach to Advanced Materials While Resistance Spot Welding
Investigation into the Effect of Interlock Area on the Strength of Self-Pierce Rivets
Microstructural and Mechanical Property Change during Friction Element Welding
Microstructure and Properties of Mg/Mg and Mg/Al FSW Welds
Self-Pierce Riveting of Aluminium and Mixed Material Car Body Structures
Solid Phase Joining of AA6061-T6 Joints via High Velocity Riveting

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