In the field of drive technology, the demand for the backlash-free transmission of high power is increasingly being met by the use of combined force and form-locking shaft-hub connections. One representative, the internal knurled interference fit, is characterized in particular by the transmission of high power densities under static and cyclic loads, its functional integration and the resulting lightweight construction potential. In the research project FVA 956 I “ Design method for internal knurled press fits“, the influence of geometry on the static and cyclic transmission behavior of this force- and form-fit connection is being investigated. The geometry parameters, in particular the hub wall thickness and the interference fit, are decisive for the counter-profile development at the interference fit collar of the softer shaft during press-fitting into the case-hardened hub. The associated experiments and numerical investigations at IKAT generate a deeper understanding of the process.
Joining simulation of an inner knurled press-fit connection
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