AN EMPIRICAL-MODEL OF A RESISTANCE BRAZING PROCESS FOR JOINING CIRCUIT-BREAKER CONTACTS

Resistance brazing is extensively used to permanently join dissimilar materials. The electromechanical equipment production industry relies on this process to join dispersion-strengthened, ceramic composites to metals with high electrical conductivity, such as copper. A fractiona l factorial experiment was conducted to quantify the effects of the pr ocess parameters on the brazement maximum shear strength. Multiple reg ression analysis of the data was used to develop an empirical model fo r predicting joint stress from the process control variables. This mod el provides good agreement with the measured joint strength and clearl y indicated an optimal process operating condition.