Influence of Rivet Tip Geometry on the Joint Quality and Mechanical Strengths of Self-Piercing Riveted Aluminium Joints

De Zhi Li; Li Han; Mike Shergold; Martin Thornton; Geraint Williams

doi:10.4028/www.scientific.net/MSF.765.746

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The Effect of Friction Stir Process (FSP) on the Microstructure and Mechanical Properties of Mg-Gd-Ag-Zr Alloy
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Formation of Intermetallic Compounds in Dissimilar Friction Spot Weld of Al to Mg Alloys
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Enhanced Performance of Steel-Aluminium Cast Nodes through Cold Metal Transfer
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Friction Stir Processing in Wrought and Cast Aluminum Alloys
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Influence of Rivet Tip Geometry on the Joint Quality and Mechanical Strengths of Self-Piercing Riveted Aluminium Joints
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Investigation of Fusion Weldments of Semi-Solid Aluminium A356 Alloy: Pool Geometry and Microstructure
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Hot Cracking Susceptibility in the TIG Joint of AZ31 Mg-Alloy Plates Produced by the TRC Process with and without Intensive Melt Shearing
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HomeMaterials Science ForumMaterials Science Forum Vol. 765Influence of Rivet Tip Geometry on the Joint...

Influence of Rivet Tip Geometry on the Joint Quality and Mechanical Strengths of Self-Piercing Riveted Aluminium Joints

Abstract:

Due to the drive from legislations, fuel efficiency, and CO₂ emission, the application of aluminium lightweight structures in automotive industry have been increased significantly. Self piercing riveting (SPR) has been one of the major joining technologies for aluminium structures due to its advantages to some traditional joining technologies. There are some standard parameters that will influence the joint quality and mechanical strengths of an SPR joint. However, even for the same parameters used, sometimes the joint quality and mechanical strengths of SPR joints could still be significantly different, which may cause joint failure or strength reduction. One reason found is the variation of rivet specifications between different batches. In this paper, the influence of rivet tip geometry on the joint quality and mechanical strengths was studied. The results showed that rivets with sharper tips flared more during riveting process, and joints with sharper rivets had higher lap shear strength; however, the influence of rivet geometry on T peel strength could be different for different rivets, and rivet tip geometry did not have an obvious influence on joint fatigue strengths.

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Periodical:

Materials Science Forum (Volume 765)

Pages:

746-750

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.746

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Online since:

July 2013

Authors:

De Zhi Li, Li Han, Mike Shergold, Martin Thornton, Geraint Williams

Keywords:

Joint Quality, Mechanical Strength, Rivet Geometry, Self-Piercing Riveting (SPR)

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References

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