| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Advanced Joining Technologies for Automotive Lightweight Structures
|
| Presentation Title |
A Novel Self-reacting Tool Design to Weld Thick Aluminium Plates Using Friction Stir Welding - Weld Characteristics and Performance Analysis |
| Author(s) |
Aishwary Mishra, Ilyas Hussain, Jose Immanuel Rajan |
| On-Site Speaker (Planned) |
Jose Immanuel Rajan |
| Abstract Scope |
Welding of aluminium alloys is challenging especially in crucial applicatIons where the welding induced thermal damage should be minimal on microstructure and properties. Friction stir welding (FSW) is an effective solid-state welding technique that produce effective joints in Aluminium alloys with superior weld-efficiency. However, joining of thick plates using FSW is challenging.
Present work is an attempt to develop FSW tool with novel design features to weld thick plates of AA2014 alloy. Results indicate that successful weld with refined microstructure and superior hardness in the weld zone is achieved using the designed tool. Due to the increased friction surface area in reactive tool design, the heat input required for welding is found to be much less as compared with the regular tool design, resulting in reduced tool speed requirement and higher traverse speed, increasing the productivity. Detailed microstructural evolution during welding and its correlation with the mechanical performance is presented. |