New technique of friction-based filling stacking joining for metal and polymer

• Published in: Composites. Part B, Engineering Engineering, 2019-04, Vol.163, p.217-223
• Main Authors: Huang, Yongxian, Meng, Xiangchen, Xie, Yuming, Li, Junchen, Wan, Long
• Format: Article
• Language: English
• Subjects: Friction-based filling staking joining; Hybrid; Joints/joining; Mechanical testing
• ISSN: 1359-8368; 1879-1069
• DOI: 10.1016/j.compositesb.2018.11.050

A novel technique named friction filling staking joining (FFSJ) was proposed to join 6082-T6 aluminum alloy and poly propylene (PP) polymer sheets. The FFSJ was realized with the filling of a pre-fabricated hole using an additional filling stud. The excellent FFSJ joint was achieved under the synthesis effects of frictional heat and thermo-mechanical behavior at the interface between the filling stud and polymer sheet. The intimate joining formed at the interface, while the pre-fabricated hole was completely filled with the stud. A macro mechanical interlocking formed between the metal and filling stud, attributing to the main joining mechanism. And the partial adhesive layer appeared between the re-solidified polymer and metal. The maximum tensile shear strength was comparable to that of state-of-the-art welding. The FFSJ combines the benefits of the improvement of assembly precision, simple process, short welding cycle and high strength compared with the state-of-the-art welding, indicating that the FFSJ technique has potential to join metal with polymer or polymer matrix composites. [Display omitted] •Friction-based filling stacking joining (FFSJ) of metal and polymer is proposed.•Adhesive bonding and mechanical interlocking attribute to joining mechanism.•Shear tensile strength of FFSJ is comparable to the state-of-the-art welding.