Roller clinching is a mechanical joining method, which combines conventional clinching
with rotational tool movement. For that purpose, punches and dies are mounted on contrariwise
rotating rolls, while the sheets are continuously fed forward. The rotation affects the joint formation
and therefore the mechanical joint properties. In this paper, the ratio between the rolling radii of
punch and die is varied. Shear tests are conducted for the material combination steel and aluminium
with different sheet thicknesses. Because of the asymmetry of the resulting clinchpoints, the joint
strengths are examined in different load directions. The joint formation is analysed using cross
sections and the effects of different punch geometries are discussed. Finite element simulations are
used to gain deeper process insight.
«
Roller clinching is a mechanical joining method, which combines conventional clinching
with rotational tool movement. For that purpose, punches and dies are mounted on contrariwise
rotating rolls, while the sheets are continuously fed forward. The rotation affects the joint formation
and therefore the mechanical joint properties. In this paper, the ratio between the rolling radii of
punch and die is varied. Shear tests are conducted for the material combination steel and aluminium
with diff...
»