Influence of Micro‐Rivet Manufacturing Process on Quality of Micro‐Joint
Wojciech Presz , Robert Cacko
AbstractOne of the modern industry endeavors is to be able to manufacture smaller size components using traditional or new technologies. Smaller components usually need special assembly techniques. New course of mechanical joining improvement is to develop process modification for decreased scale, i.e. micro‐joining. Very interesting problems arise with self‐piercing riveting (SPR) method, because one of the factors influencing SPR joint strength is rivet material properties. Rivet production by forming produces certain distribution of stress/strain field within cross‐section of a rivet, influencing the process of SPR joint formation in micro‐joining. Results of initial analysis of micro‐joint strength are presented in the paper. Stress/strain field obtained during rivet production is taken into account in numerical simulation of micro‐riveting process. Joint loading test was numerically modeled. Simulations consisted of three phases: manufacturing of the rivet, forming a joint and strength test. Stress strain fields were superimposed over the joint on every stage. Influence of the manufacturing method of the rivet on the joint quality and strength was observed. The commercial FEM software MSC‐Marc is used for numerical simulations.
|Journal series||AIP Conference Proceedings, ISSN 0094243X, (0 pkt)|
|Publication indicators||= 3|
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