2021
DOI: 10.3390/jmmp5010025
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Experimental Study on Joining by Forming of HCT590X + Z and EN-AW 6014 Sheets Using Cold Extruded Pin Structures

Abstract: Due to stricter emission targets in the mobility sector and the resulting trend towards lightweight construction in order to reduce weight and consequently emissions, multi-material systems that allow a material to be placed in the right quantity and in the right place are becoming increasingly important. One major challenge that is holding back the rapid and widespread use of multi-material systems is the lack of adequate joining processes that are suitable for joining dissimilar materials. Joining processes … Show more

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Cited by 11 publications
(14 citation statements)
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“…Due to the upsetting of the pin structure within the aluminium sheet, a more or less pronounced undercut is formed depending on the used pin height, which influences the resulting joint strength. 14 To prevent the pin structure from bending back into the punch cavity under the compressive load of the upsetting tool, sheet metal discs are placed in the cavity to support the pin structure. During joining, the force and displacement data are recorded to analyse the differences that arise when joining the different pin heights and pin geometries.…”
Section: Joining By Direct Pin Pressingmentioning
confidence: 99%
See 2 more Smart Citations
“…Due to the upsetting of the pin structure within the aluminium sheet, a more or less pronounced undercut is formed depending on the used pin height, which influences the resulting joint strength. 14 To prevent the pin structure from bending back into the punch cavity under the compressive load of the upsetting tool, sheet metal discs are placed in the cavity to support the pin structure. During joining, the force and displacement data are recorded to analyse the differences that arise when joining the different pin heights and pin geometries.…”
Section: Joining By Direct Pin Pressingmentioning
confidence: 99%
“…The pin structures with different geometries and heights were all joined by direct pin pressing. In, 14 the basic process of joining cylindrical pin structures by direct pin insertion was already described and divided into 3 phases. Here, however, cylindrical pins with a diameter of 1.5 mm were used and directly pressed into an EN AW-6014 in the T4 temper.…”
Section: Direct Pin Pressingmentioning
confidence: 99%
See 1 more Smart Citation
“…In contrast, when joining dissimilar metals, caulking [76], in which the pin is inserted through a perforated joining partner and subsequently upset, and direct pin pressing [80], in which the cold extruded pin is pressed into an unperforated joining partner, can be used for joining. For this purpose, pin structures cold extruded from the sheet metal plane are utilized, which have a higher strength due to strain hardening.…”
Section: Joining With Pin Structuresmentioning
confidence: 99%
“…Pin structures for joining dissimilar materials are produced by various manufacturing processes, which can be primarily categorized as molding [19], additive [20] and formative [21]. Pin joints mostly are known for metalmetal joints [22] as well as metal-composite (thermoset [23] and thermoplastic [21] matrix systems) joints. Thereby, two main process routes are established:…”
Section: Pin Joiningmentioning
confidence: 99%