Spot welding process research of fine pitch micro-rectangular connectors based on pu enameled wire

With the T/R module is developing to small, lightweight, high performance and high reliability, fine pitch micro-rectangular connector has been widely used, welding between fine pitch micro-rectangular connector and transmission line becomes a difficulty. This paper describes a spot welding process for fine pitch micro-rectangular connector based on pu enameled wire, the orthogonal design was used to analyze the impact of the welding current, welding time, current rise rate and pressure to the tension of spot welding, the statistical empirical model of spot welding process based on test results was verified by experiments, to guide the spot welding process of fine pitch micro-rectangular connectors based on pu enameled wire, then improve spot welding reliability, yield and efficiency, reduce welding difficult.