Summary
Double-hat thin-walled specimens joined by clinching methods: round press joining
(RPJ) and square press joining (SPJ), were investigated. During the dynamic axial
crushing test the behaviour of thin – wall samples were better then in static test. There
are two the most important parameters of clinching influencing on mode of deformation:
technique and pitch of clinching. The experiments show that the RPJ clinching
and application of pitch of 25 mm are the best as regards of mode deformation. They
are deformed more progressive in both dynamic and quasi-static tests. In spite of
lower crush force in static test, more often joining separation occurs in this test than in
dynamic. The results show that clinch joining could be applied in controlled body
crushing zones.
Acknowledgments