Transition between flow-drill screwing systems considering joining process and joint characteristics

Flow-drill screwing is one of the key joining technologies for car body structures in multi-material lightweight design. In course technological developments and subsequent volume production a product, different assets are used to obtain same joints, assuming that similar processes yield joint characteristics. Since simple transfer process parameters materials usually not possible, remarkable experimental effort required meet manufacturing requirements. this study transition an enhanced flow-drill system its effects on investigated. For purpose, two systems typically automotive industry considered. An application-oriented approach determining shown. First, optimal target were determined based curves initial by fulfilling requirements joint. The joints evaluated using cross sections single-lap shear tests. On basis, results both compared. Due further development times can be significantly shortened while achieving mechanical properties better control at time.