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Upset-resistance welding of aluminium to copper rods: effect of interface on performance

Shamsian, M ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1080/02670836.2018.1482254
  3. Publisher: Taylor and Francis Ltd , 2018
  4. Abstract:
  5. Upset resistance dissimilar welding of aluminium and copper narrow rods was performed. Effect of the interface characteristics was studied on the joint mechanical and electrical properties. Upset resistance welding (URW) was successful for production of joints with high strength and electrical conductivity between aluminium and copper rods. Reaction layer at the joint interface was composed of the Al2Cu cellular phase and lamellar eutectic structure of α-Al and Al2Cu. Enhancement of the welding current and decrease in the upset force increased the reaction layer thickness and strength of the joint. URW had no significant detrimental effect on the electrical conductivity of the weld zone. Neither the joint strength nor the joint electrical conductivity was improved by in situ post weld heat treatment. © 2018, © 2018 Institute of Materials, Minerals and Mining
  6. Keywords:
  7. Aluminium ; Electrical resistance ; Solid state welding ; Upset resistance welding ; Aluminum ; Aluminum alloys ; Binary alloys ; Copper ; Copper alloys ; Electric conductivity ; Eutectics ; Heat resistance ; Heat treatment ; Microstructure ; Resistance welding ; Welds ; Dissimilar welding ; Electrical conductivity ; Electrical resistances ; Interface characteristic ; Mechanical and electrical properties ; Post weld heat treatment ; Solid-state welding ; Strength ; Welding rods
  8. Source: Materials Science and Technology (United Kingdom) ; Volume 34, Issue 15 , 2018 , Pages 1830-1838 ; 02670836 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/02670836.2018.1482254