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Journal of Electronic Materials

, Volume 29, Issue 9, pp 1090–1099 | Cite as

Weldability of thin sheet metals during small-scale resistance spot welding using an alternating-current power supply

  • Y. Zhou
  • P. Gorman
  • W. Tan
  • K. J. Ely
Regular Issue Paper

Abstract

The resistance weldability of 0.2-mm-thick sheet aluminum, brass, and copper in small-scale resistance spot welding (SSRSW) was studied. The effects of electrode materials and process parameters on joint strength and nugget size were investigated. The welding current ranges for SSRSW of the sheet metals were determined based on the minimum current that produced a required nugget diameter and maximum currents that did not result in electrode-sheet sticking or weld metal expulsion. A qualitative analysis indicated that resistance weldability of the metals is not only determined by their resistivity (or thermal conductivity) but is also affected by other physical properties (such as melting point, latent heat of fusion and specific heat).

Key words

Small-scale resistance spot welding weldability thin sheet metal joint strength electrode materials process parameters 

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Copyright information

© TMS-The Minerals, Metals and Materials Society 2000

Authors and Affiliations

  • Y. Zhou
    • 1
  • P. Gorman
    • 2
  • W. Tan
    • 1
  • K. J. Ely
    • 2
  1. 1.Department of Mechanical EngineeringUniversity of WaterlooWaterlooCanada
  2. 2.Microjoining and PlasticsEdison Welding InstituteColumbusUSA

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