Rounding Actuator Wire Tips
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
One type of wire matrix printer uses individual solenoids for each wire of the printer. In constructing these actuators, the 0.014 inch tungsten carbide wire is fired through a guide of the same material, and it is necessary to grind both the wire and guide so that the surface is flat. This results in an extremely sharp edge on the wire which, if allowed to emain, will cause the ribbon to disintegrate in a short time.