The Importance of Governing Metal Thickness for Resistance Spot Welding of Aluminium

Li Han; Martin Thornton; Douglas Boomer; M. Shergold

doi:10.4028/www.scientific.net/KEM.473.319

Paper Titles

Modelling of Fine Blanking Process of the Aluminium Sheets
p.290

The Effect of Residual Stresses on the Strain Evolution during Welding of Thin-Walled Tubes
p.298

Computer Aided Design of an Effective Fixture for FSW Processes of Titanium Alloys
p.304

Thickness Effect on the Formability of AZ31 Magnesium Alloy Sheets
p.313

The Importance of Governing Metal Thickness for Resistance Spot Welding of Aluminium
p.319

A Theoretical Study on Forming Limit Diagram Predictions Using Viscoplastic Polycrystalline Plasticity Models
p.327

Influence of the Processing of Magnesium Alloys AZ31 and ZE10 on the Sheet Formability at Elevated Temperature
p.335

Optical Measuring Technique for the Investigation of Built-Up Cold-Formed Steel Structural Members
p.343

Analytical and Experimental Evaluation of the Stress-Strain Curves of Sheet Metals by Hydraulic Bulge Tests
p.352

HomeKey Engineering MaterialsKey Engineering Materials Vol. 473The Importance of Governing Metal Thickness for...

The Importance of Governing Metal Thickness for Resistance Spot Welding of Aluminium

Abstract:

A study was carried out to investigate the effect of governing metal thickness (GMT) on weld quality and strength of resistance spot welded (RSW) AA5754 aluminium. Quasi-static joint strengths were evaluated for 27 different joint stack-ups in three test geometries: lap-shear, coachpeel and cross-tension; whilst micro examination was conducted on some of the samples to assess weld quality. The results derived from over 1000 samples show the importance of GMT and its various effects: the GMT has a significant effect on welding quality and joint strength by controlling the attainable weld diameter, regardless of stack-ups; depending on loading conditions, its effect may differ.