Manufacturing method of the tip structure of the flat wire

摘要

A slit 21 having a predetermined width and a predetermined length is formed in a longitudinal direction from a middle of a distal edge of a tip 20 of a flat wire 10 (Figure 1A). Next, one of a left strip 22a and a right strip 22b is brought upward and the other is brought downward, and then the left strip 22a and the right strip 22b vertically separated are laterally brought close to each other (Figure 1B). Finally, the left strip 22a and the right strip 22b are vertically pressed to abut against each other (Figure 1C) .