Patent ID: 6644534
Filing Date: 2003-11-11
Classification: B23K,H01L,H01R

Abstract:
A process for joining metals, by which a core wire of a body of a coated electric wire is joined to a first metal, on the surface of which a plated layer is formed, comprising:a first welding step, in which ultrasonic welding is carried out after placing a part of the the core wire of the body of the coated electric wire on the plated layer of the first metal, so that the plated layer is melted, the part of the core wire is joined to a matrix of the first metal, and the part of the core wire is broken off from the remaining core wire of the body of the coated electric wire; and a second welding step, in which an ultrasonic welding is carried out after placing a part of the remaining core wire of the body of the coated electric wire on the part of the core wire joined to the matrix in said first welding step, so that the two parts of the core wire of the body of the coated electric wire are joined to each other.