By Tomasz Sadowski, Tadeusz Balawender, Przemyslaw Golewski
This brief ebook describes the elemental technological features inquisitive about the production of merely clinch and clinch-adhesive joints made up of kinds of adherent fabrics and utilising diversified becoming a member of applied sciences. simple parameters that have to be taken under consideration within the layout procedure also are offered, whereas a comparability of experimental checking out of the hybrid joint with uncomplicated clinching for a mixture of alternative becoming a member of fabrics underlines the benefits of picking hybrid joints. The book’s conclusions will facilitate the sensible program of this new fastening technology.
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This brief e-book describes the elemental technological facets focused on the construction of merely clinch and clinch-adhesive joints made from types of adherent fabrics and utilizing assorted becoming a member of applied sciences. simple parameters that have to be taken under consideration within the layout technique also are provided, whereas a comparability of experimental checking out of the hybrid joint with basic clinching for a mixture of other becoming a member of fabrics underlines the benefits of deciding on hybrid joints.
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Additional resources for Technological Aspects of Manufacturing and Numerical Modelling of Clinch-Adhesive Joints
G. cohesive strength, embrittlement, shrinkage) as well as degradation of the adhesion properties at the interface of joined materials. Therefore, it is necessary to perform appropriate surface preparation of joined adherends to decrease the risk of quick corrosion degradation of the joints. However, the adhesive bonding can be used as a supporting technique to increase the strength of mechanical joints and to make them watertight. In this manner various kinds of so called hybrid joints can be created, see [11–14, 24, 27–33].
59). The greater values of the averaged maximal peel load were recorded for the pure clinch joint than the pure adhesive joint, what is the inverse result of the pull test. The results of the peel test for two procedures of the hybrid specimen are shown in Figs. 61 and 62. The peel test curves, for both kind of hybrid specimen preparation procedure, have the same character like clinch joint specimen; there are three peak values of peel load and the ﬁrst peak value is the lowest. As it was in the pull test the procedure ‘clinching before adhesive curing’ gives better results of the joint strength than the procedure ‘clinching after adhesive curing’.
On the other hand the proﬁle roughness parameters of raw sheet materials are better (smaller) for 50CrV4 sheet than for C45 sheet and these parameters determine friction conditions on clinching tools and clinched sheets contact surfaces, what was not tested in the investigations, but it seems to be advantages for the clinch joint decreasing friction on these contact surfaces. 05 mm) Raw lap surfaces C45 Max. 8 30CrMnSi Max. 1 50CrV4 Max. g. g. C45 steel joint), when compare to the joint with grinded and degreased lap surfaces, • the influence of friction conditions in the tool—sheet contact surfaces and their relationship to the interface friction conditions and the mechanical properties of joined materials should be taken into account to complex estimation of the clinch joint strength.