Self-Pierce Riveting Through 3 Sheet Metal Combinations

Journal Article · Wed May 04 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3589695· OSTI ID:21516713

Andersson, Roger ^[1]; Jonason, Paul ^[2]; Pettersson, Tommy ^[3]

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1. swerea KIMAB, Drottning Kristinas v. 48, SE-102 16 Stockholm (Sweden)
2. Volvo Cars Corporation, R and D Exterior engineering, Dept 9633, Goeteborg (Sweden)
3. Emhart Teknologies-Tucker, Automation Systems, Skjutbanevaegen 6, 701 44 Oerebro (Sweden)

One way to reduce the CO{sub 2} emissions in automotives is to reduce the weight of the Body-In-White. One easy to achieve the weight reduction is to replace steel sheet materials with Al alloys, which is 3 times lighter. One issue is the joining process, especially with combinations between steel grades and AL alloys. Example of combination of mixed material combinations (Al-steel) might be found in the door structure. The reason is because of the AL alloys worthier crash performance so the automotive manufacturer might want to use crash impact beams made by high strength steels in a AL intensive door structure. The joining process between aluminum and steel are problematic due it's not possible to use traditional spot-welding technologies due to the materials total difference in microstructure characteristics as well thermal properties. To overcome this issue then mechanical as well adhesion joining are frequently used. This paper describes a development process and subsequently analysis of a self-pierce rivet (SPR) process between 3 sheet metal combinations. The multi-material combinations in this study were a combination of ultra high strength steels sheets (DP1000) and a Al-alloy (AA 6014). The analysis of the SPR process, in sense of mechanical strengths, has been done by peel- and shear tests. To reduce the amount of future physical tests a virtual FE-model has been developed for the process. This FE model of the process has been subsequently used to analyze the mechanical strength during plastic deformation. By using inverse analysis a correct contact algorithm has been evaluated that would predict the binding force between the rivet and sheet under a deformation process. With this new virtual model it will not only possible to analyze and develop the SPR process but also to achieve the final strength of the joint.

• OSTI ID: 21516713
• Journal Information: AIP Conference Proceedings, Vol. 1353, Issue 1; Conference: ESAFORM 2011: 14. international ESAFORM conference on material forming, Belfast, Northern Ireland (United Kingdom), 27-29 Apr 2011; Other Information: DOI: 10.1063/1.3589695; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADHESION
ALGORITHMS
ALUMINIUM ALLOYS
BEAMS
CARBON DIOXIDE
EMISSION
FASTENING
FINITE ELEMENT METHOD
MANUFACTURERS
MICROSTRUCTURE
PLASTICITY
STEELS
THERMAL ANALYSIS
THERMODYNAMIC PROPERTIES
WELDING
ALLOYS
CALCULATION METHODS
CARBON ADDITIONS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MATHEMATICAL LOGIC
MATHEMATICAL SOLUTIONS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT ALLOYS