Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a contact terminal, by which adequate height and thinness equal to those when using a contact member as a separate component are secured at a contact portion without causing cracks at the contact portion even when the contact member is not used.SOLUTION: In the first press stage, a projecting portion 131 which is projected in the thickness direction of a metal plate 121 and has a diameter larger than a contact portion 52 is formed by drawing work with a press on the metal plate 121 for forming a first fixed contact terminal. In the first to the fifth reduction press stages, the contact portion 52 is formed from the projecting portion 131 by applying pressing work to the projecting portions 131-135 so that the heights of the projecting portions 131-135 are kept fixed and the diameters of the projecting portions 131-135 are gradually reduced.
Abstract:
The present invention provides a crimp terminal, a connection structural body, and a method for producing the same, which, even when an electrolytic solution is directly attached to a surface of an aluminum substrate so that the electrolytic solution is present between the aluminum substrate and a conductive contact body containing a nobler metal material than an aluminum material, prevent galvanic corrosion of the aluminum substrate and thus provide high conductivity with another conductive member. The crimp terminal (1) is formed of the aluminum substrate (100A) of the aluminum material and includes a connection section (2) and a pressure-bonding section including a wire barrel section (10) and an insulating barrel section (15). The connection section (2), the wire barrel section (10) and the insulating barrel section (15) are located in this order. The conductive contact body (40) containing a nobler metal material than the aluminum material is provided on a contact part of a surface of the aluminum substrate (100A) where the aluminum substrate (100A) contacts another conductive member. An insulating body-forming part (60, 560) is formed on a border between the aluminum substrate (100A) and the conductive contact body (40) along an outer periphery of the conductive contact body (40).