Integral rivet for fastening two parts as well as its manufacturing method and device

摘要

The fixing device connects two parts, one of which is a sheet (1) or plate of non-ferrous metal such as aluminum or an aluminum alloy. A rivet (2) is formed from the material of this sheet. There is an annular groove (7), of reduced thickness compared to the initial material. Fins (11) in the region of this groove project over it.