Resistance Microwelding of Au/Ni-Plated Phosphor Bronze Sheet to Insulated Cu Wire

• DOI: 10.4028/www.scientific.net/amr.189-193.3596
• Publication Date: 2011-02-21T20:42:33Z
• Authors: Bing Hua Mo; Zhong Ning Guo; Yuan Bo Li; Guan Wang
• Keywords: Brazing; Plating (geology); Bronze

Resistance microwelding of Au/Ni-plated phosphor bronze sheet to insulated Cu wire have been investigated using mechanical testing, optical microscopy, scanning electron and energy-dispersive X-ray spectroscopy. The results show that mechanisms joint formation involve solid-state bonding with Au atoms diffusion at low welding current, a combination brazing high current. Due the hindrance Ni plating which has higher melting temperature hardness, breaking force is smaller than without plating.