Investigation into terminating ignition coil primary magnet wire without prior removal of insulation

Abstract

Concerns with stripping and soldering copper magnet wire in ignition coils and other related products have led to the investigation of an alternative product and process design called microjoining. The use of microjoining with a folded over welding tab terminal design along with a parallel gap welding process is investigated as a suitable method for joining a tin plated brass terminal to the 0.65 mm magnet wire without prior removal of the polyesterimide overcoated polyamideimide insulation.