| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Weld Quality Improvement Using Electrode Patterning in Resistance Spot Welding of Al6061 Alloy |
| Author(s) |
Jae Hun Kim, Changwook Ji |
| On-Site Speaker (Planned) |
Jae Hun Kim |
| Abstract Scope |
Resistance spot welding generates resistance heat at the interface of plates by energizing current with local pressurization and is widely used in automobile body assembly. In aluminum spot welding, electrode deterioration and abrasion due to aluminum's high thermal/electrical conductivity and surface oxide film (Al2O3) lead to cracks and defects, lowering welding quality. Additionally, varying compositions and thicknesses of aluminum alloy plates further disrupt the heat balance in the molten zone, deteriorating weld properties.This study used electrode patterning technology to control resistance heat between the plate and electrode, minimizing sticking and improving weld heat balance. Sorpas simulation showed that melting behavior and current density vary with patterning. Cross-sectional observations of welds indicated that denser electrode patterning roughness concentrate nugget growth at faying surface. |
| Proceedings Inclusion? |
Planned: Light Metals |