| Abstract Scope |
The automotive industry widely employs Advanced High-Strength Steels because of their outstanding combination of strength and ductility. This research examines a hybrid manufacturing technique that combines Resistance Spot Welding and adhesive bonding, assessing its effectiveness across various steels with tensile strengths ranging from 1500 MPa to 2000 MPa. This study utilizes both experimental and numerical methods to investigate how weld-bonded automotive steels affect performance. The effectiveness of weld-bonded samples was assessed through lap-shear and fatigue tests, uncovering varied fracture patterns influenced by welding parameters. Additionally, a comparative analysis was performed among adhesive bonding, resistance spot welding, and weld-bonding techniques. Microstructural examination, including optical microscopy, SEM, and EDS analyses, was carried out to ascertain failure mechanisms and detect any residual adhesives in the weld region. This study enhances comprehension of weld-bonding's efficiency in enhancing automotive steel performance, offering pertinent guidance for the continual quest for lightweight vehicle manufacturing. |