Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints

Uhe B, Kuball CM, Merklein M, Meschut G (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Production Engineering Wissenschaftliche Gesellschaft für Produktionstechnik (WGP)

DOI: 10.1007/s11740-020-00973-w

Abstract

As a result of lightweight design, increased use is being made of high-strength steel and aluminium in car bodies. Self-piercing riveting is an established technique for joining these materials. The dissimilar properties of the two materials have led to a number of different rivet geometries in the past. Each rivet geometry fulfils the requirements of the materials within a limited range. In the present investigation, an improved rivet geometry is developed, which permits the reliable joining of two material combinations that could only be joined by two different rivet geometries up until now. Material combination 1 consists of high-strength steel on both sides, while material combination 2 comprises aluminium on the punch side and high-strength steel on the die side. The material flow and the stress and strain conditions prevailing during the joining process are analysed by means of numerical simulation. The rivet geometry is then improved step-by-step on the basis of this analysis. Finally, the improved rivet geometry is manufactured and the findings of the investigation are verified in experimental joining tests.

Authors with CRIS profile

Clara-Maria Kuball Institute of Manufacturing Technology Marion Merklein Institute of Manufacturing Technology

Related research project(s)

Forming and joining of semitubular self-piercing rivets made of high-strength steel with adapted mechanical properties and numerical analysis of the process chain Jan. 1, 2018 - Nov. 30, 2024

Involved external institutions

Universität Paderborn DE Germany (DE)

How to cite

APA:

Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2020). Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints. Production Engineering. https://dx.doi.org/10.1007/s11740-020-00973-w

MLA:

Uhe, Benedikt, et al. "Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints." Production Engineering (2020).

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