Patent ID: 6323458
Filing Date: 2001-11-27
Classification: B23K,F01L

Abstract:
A method of joining two metal members by pressing and heating on passing an electric current through the metal members, said metal members having joining surfaces which are pressed together for joining the metal members, wherein the first member is a sintered material formed by sintering a powdery material containing particles having high electric conductivity dispersed therein, including a single process of pressing and heating the first and second metal members with a brazing material interposed therebetween, which process includes the steps of:melting and brazing material between the first and second metal members by passing an electric current across both the metal members at a higher temperature than the melting point of the brazing material;pressing the joining surfaces toward each other for substantially completely squeezing residual molten braze material from between the joining surfaces of the first and second metal members; andjoining the first and second metal members by direct contact of diffusion layers formed on the joining surfaces of the metal members.