Proprietà meccaniche di una tecnologia di giunzione innovativa tipo shear-clinching per strutture leggere automobilistiche in acciaio ad altissima resistenza e leghe di alluminio
Hörhold R, Müller M, Merklein M, Meschut G (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 69
Pages Range: 171-184
Journal Issue: 2
Abstract
Comfort- And safety-related requirements lead to weight increase of automotive structures. Modern constructions in automotive body in white (BIW) production confront this upward weight spiral with multi-material design. This restricts conventional thermal joining technologies. The basic idea of mechanical joining technologies is a force- And formfitting joint. Clinching technologies create a joint only by plastic deformation. The formability of the joining partners limits this technology, especially when joining ultra-highstrength steels (UHSS) in multi-material design. State of the art to realise this is multistage clinching with pre-hole. Industrial applications in BIW are, e.g. the brackets for mouldings in the upper windscreen frame of Daimler's S-class and the battery holder of Daimler's M-class. Innovative shear-clinching enables joining by forming hot formed UHSS and ductile aluminium in a single-stage process. The spherical punch-sided tool set prevents any harm of the punch-sided ductile material. The cutting die initialises a crack in the die-sided material with limited formability. This paper presents detailed studies on the mechanical behaviour of state of the art multi-stage clinching with cylindrical and tapered pre-hole under quasistatic and fatigue testing methods to evaluate the influence of the interlock. These results were compared to the single-stage shear-clinching technology to derive further recommendations.
Authors with CRIS profile
Martin Müller
Institute of Manufacturing Technology
Marion Merklein
Institute of Manufacturing Technology
Involved external institutions
Germany (DE)How to cite
APA:
Hörhold, R., Müller, M., Merklein, M., & Meschut, G. (2017). Proprietà meccaniche di una tecnologia di giunzione innovativa tipo shear-clinching per strutture leggere automobilistiche in acciaio ad altissima resistenza e leghe di alluminio. Rivista Italiana della Saldatura, 69(2), 171-184.
MLA:
Hörhold, Réjane, et al. "Proprietà meccaniche di una tecnologia di giunzione innovativa tipo shear-clinching per strutture leggere automobilistiche in acciaio ad altissima resistenza e leghe di alluminio." Rivista Italiana della Saldatura 69.2 (2017): 171-184.
BibTeX: Download