About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Charge Weld Characteristics in Multi-Hollow Aluminum Profiles for Automotive Bumper Applications |
| Author(s) |
Ilyas Artunc Sari, Gorkem Ozcelik, Onuralp Yucel |
| On-Site Speaker (Planned) |
Ilyas Artunc Sari |
| Abstract Scope |
Charge welds occur in aluminum extrusion when the leading end of a new billet encounters the trailing end of the previous billet, potentially forming regions of reduced bonding quality along the extrusion length. These areas are critical for safety-related components such as automotive bumper profiles, especially in complex multi-hollow geometries where material flow paths are intricate. This study investigates the charge weld characteristics in extruded multi-hollow aluminum profiles produced from 6xxx series alloys. Macrostructural analysis, optical microscopy, and scanning electron microscopy (SEM) were performed to examine the integrity of the charge weld zones along the extruded profile. The investigation enabled the identification of relaiable profile lengths beyond the charge weld transition. The findings provide essential knowledge on charge weld development and quality, which is crucial for determining cut-off lengths that directly impact the safety and performance of automotive bumper profiles. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Mechanical Properties |