Design criteria for the pin-foot ratio for joining adhesion-incompatible polymers using pin-like structures in vibration welding process

Abstract Joining technologies have a crucial role in the product development process, e.g. to achieve local part properties or functional integrations. This often requires multi-material joints, which are challenging for conventional joining processes. Therefore, innovative processes needed generate bonds between adhesion-incompatible material combinations, such as using pin-like structures vibration welding process. Investigations into this novel process provided initial findings; however, specific pin design is not possible at time. For reason, influence of pin-foot width two partners was analyzed numerically by simulation. The results simulation were validated experimental tests. investigations show, that model suitable predicting bond quality well fracture behavior joint based on structures. developed correlations material, structure, and resulting allow criteria be derived. These dimensioning ratio depending used combination. Thus, example, connection can selectively adjusted, strength maximally utilized.