Weldability of Thin Sheet Metals by Small-Scale Resistance Spot Welding using High-Frequency Inverter and Capacitor-Discharge Power Supplies
Authors: Zhou, Y.; Dong, S.J.; Ely, K.J.
Source: Journal of Electronic Materials, Volume 30, Number 8, 1 August 2001 , pp. 1012-1020(9)
Abstract:An investigation has been conducted of the weldability of 0.2-mm-thick sheet aluminum, brass, and copper in small-scale resistance spot welding using a high-frequency inverter and a capacitor-discharge power supply. The results have been compared to those of previous investigations using a line-frequency alternating current power supply. The effects of electrode materials and process parameters on joint strength, nugget diameter, weld-metal expulsion and electrode-sheet sticking were studied. This work has also provided practical guidelines for selection of power supplies, process parameters (welding current/pulse energy, welding time/pulse width, electrode forces, etc.) and electrode materials for small-scale resistance spot welding of thin sheet aluminum, brass and copper.
Document Type: Miscellaneous
Publication date: 1 August 2001