Material flow and mechanical properties of aluminum-to-steel self-riveting friction stir lap joints
- Resource Type
- Authors
- Xiangchen Meng; Li Zhou; Long Wan; Yongxian Huang; Huang Tifang
- Source
- Journal of Materials Processing Technology. 263:129-137
- Subject
- 0209 industrial biotechnology
Materials science
Metals and Alloys
chemistry.chemical_element
02 engineering and technology
Welding
Industrial and Manufacturing Engineering
Computer Science Applications
Material flow
law.invention
020303 mechanical engineering & transports
020901 industrial engineering & automation
Lap joint
0203 mechanical engineering
chemistry
Aluminium
law
Modeling and Simulation
Ceramics and Composites
Rivet
Friction stir welding
Composite material
Layer (electronics)
Joint (geology)
- Language
- ISSN
- 0924-0136
High-quality aluminum /steel joint was achieved via self-riveting friction stir lap welding (SRFSLW) characterized by the prefabricated holes in steel sheet. According to the origination of filling materials, the prefabricated holes were filled with the plasticized aluminum materials in this order: the deformed aluminum ahead of a pin firstly, the stirred aluminum by the pin body secondly and the driven aluminum by the pin tip finally. The strength of the SRFSLW joint reached maximum value of 317 N/mm at the hole diameter of 3 mm, which was 23% higher than that by conventional friction stir welding (FSW). The optimized joints failed at both the aluminum/steel interface and the formed aluminum rivets. The synergistic effect of mechanical bonding induced by the riveting and metallurgical bonding induced by the Al/Fe IMC layer contributed to high strength of the SRFSLW joint.