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Metal member,terminal,electric wire connection structure and method of manufacturing terminal

A metal component and manufacturing method technology, applied in the direction of conductive connection, contact manufacturing, connection, etc., can solve the problems of reducing the HAZ, improving the absorption rate of the laser wavelength region without discussion, and achieving the effect of reducing the HAZ

Active Publication Date: 2014-10-29
FURUKAWA ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in Patent Documents 1 and 2, there is no discussion on reducing the HAZ while improving the absorption rate in the laser wavelength region.

Method used

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  • Metal member,terminal,electric wire connection structure and method of manufacturing terminal
  • Metal member,terminal,electric wire connection structure and method of manufacturing terminal
  • Metal member,terminal,electric wire connection structure and method of manufacturing terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0100] As the base material of the terminal, copper alloy FAS-680 (trade name) (strip shape, thickness 0.25 mm, H material) manufactured by Furukawa Electric Co., Ltd. was used. FAS-680 is a copper alloy of copper-nickel-silicon type (Ni-Si type).

[0101] Using a commercially available tin plating bath, nickel plating bath, at a specified high current density (tin plating: 5 ~ 10A / dm 2 ;Nickel plating: 20~30A / dm 2 ), and the stirring condition was 500 rpm, and the substrate was subjected to tin plating or nickel plating. By this plating treatment, the thickness of the white metal layer composed of tin plating layer and nickel plating layer is changed as shown in Table 1 in the part where laser welding is performed, that is, the surface of the region that becomes the expanded part of the tube (hereinafter Denoted as "plating layer thickness") and the arithmetic mean roughness Ra of the surface, a tin plating layer or a nickel plating layer (hereinafter referred to as "platin...

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Abstract

Provided are: a metal member which has improved copper and copper alloy laser weldability, and a small heat-affected zone; a terminal and an electric wire connection structure formed using the metal member; and a method for manufacturing the terminal. As shown, for example, in fig. 1, this metal member (1) has: a base material (2) comprising copper or a copper alloy; a white metal layer (3) provided on a part of or the entirety of the base material (2); and an oil film (4) provided on the white metal layer. In the metal member (1), the thickness of the white metal layer is 0.01-0.80 µm, the arithmetic average roughness (Ra) of the surface of the white metal layer is 0.6-1.2 µm, and moreover the electrical double layer capacitance of the oil film is 1.5-7.0 µF / cm2.

Description

technical field [0001] The present invention relates to a metal member having improved laser weldability of copper and copper alloys, a terminal and an electric wire connection structure formed using the metal member, and a method for manufacturing the terminal. Background technique [0002] Conventionally, in the field of vehicles, weight reduction of various parts constituting automobiles has been demanded from the viewpoint of reducing fuel consumption. In particular, the wiring (wire harness) used in automobiles is the second-highest weight in the car after the engine, so in order to achieve weight reduction, the conductor (core wire) material of the wires used for this wiring is being changed from copper to aluminum. or aluminum alloy. As a terminal connected to the tip of an aluminum or aluminum alloy electric wire, a base material made of copper or copper alloy is generally used. Therefore, at the connecting portion between the conductor and the terminal made of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/00B23K26/21C22C9/06H01R4/62H01R13/03H01R43/16
CPCH01R13/03C25D3/30C25D5/48H01R4/20C25D3/12C25D7/00H01R43/16H01R43/0221C22C9/06H01R4/62B23K26/32C22C9/00B23K2103/08B23K2101/34B23K2101/38B23K2103/12Y10T428/12472Y10T29/49215C25D5/605C25D5/627B23K26/322C25D5/10H01R4/187B32B15/043B32B15/04B32B15/20B32B2250/03B32B2307/20
Inventor 橘昭赖水户濑贤悟生田力与
Owner FURUKAWA ELECTRIC CO LTD
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